HomeMy Public PortalAbout2005 - Stormwater Master Plan - Phase 3 - Grays Creek StudyGray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 i
Stormwater Master Plan, Phase 3, Grays Creek
City of Jefferson, Missouri
TABLE OF CONTENTS
SECTION 1.0 - EXECUTIVE SUMMARY.....................................................................................1
1.1 GENERAL INFORMATION..............................................................................................................1
1.2 METHODOLOGY.............................................................................................................................1
1.2.1 Hydrology................................................................................................................................................................1
1.2.2 Hydraulics................................................................................................................................................................1
1.3 WATERSHED MAPPING.................................................................................................................1
1.4 RECOMMENDED IMPROVEMENTS...............................................................................................2
SECTION 2.0 - INTRODUCTION.................................................................................................5
2.1 PROJECT TEAM..............................................................................................................................5
2.2 STUDY AREA...................................................................................................................................5
2.3 PURPOSE.........................................................................................................................................5
2.4 SCOPE OF SERVICES....................................................................................................................6
2.4.1 Information Review.................................................................................................................................................6
2.4.2 Field Investigations and Inventory...........................................................................................................................6
2.4.3 Existing System Evaluation.....................................................................................................................................6
2.4.4 Watershed Mapping.................................................................................................................................................7
2.4.5 Capital Improvements Plan......................................................................................................................................7
SECTION 3.0 - DATA COLLECTION...........................................................................................8
3.1 DATUM AND PROJECTION INFORMATION.................................................................................8
3.2 MAPPING SOURCES......................................................................................................................8
3.3 FIELD INVESTIGATIONS................................................................................................................8
3.3.1 Major Structures (Bridges/Culverts)........................................................................................................................9
3.3.2 Culverts....................................................................................................................................................................9
3.3.3 Cross-Sections..........................................................................................................................................................9
3.4 PROJECT PHOTOGRAPHS ............................................................................................................9
3.5 OTHER SOURCES OF INFORMATION..........................................................................................9
3.6 ESTIMATES AND PROJECTIONS................................................................................................10
3.7 INFORMATION PROVIDED BY CLIENT.......................................................................................10
SECTION 4.0 - HYDROLOGIC MODELING..............................................................................11
4.1 INTRODUCTION............................................................................................................................11
4.2 WATERSHED DELINEATION.......................................................................................................11
4.2.1 Subarea Boundaries................................................................................................................................................11
4.3 PRECIPITATION............................................................................................................................11
4.3.1 General...................................................................................................................................................................11
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City of Jefferson, Missouri
Feburary 3, 2005 ii
4.3.2 Rainfall Distribution..............................................................................................................................................12
4.3.3 Rainfall Depths......................................................................................................................................................12
4.3.4 Rainfall Duration....................................................................................................................................................13
4.4 RUNOFF.........................................................................................................................................13
4.4.1 Soils.......................................................................................................................................................................13
4.4.2 Land Use................................................................................................................................................................14
4.4.3 Loss Method...........................................................................................................................................................15
4.4.4 Subarea Lag Time..................................................................................................................................................15
4.4.5 Time of Concentration...........................................................................................................................................16
4.4.6 Hydrographs...........................................................................................................................................................16
4.4.7 Conveyance Routing..............................................................................................................................................16
4.5 MODEL CALIBRATION.................................................................................................................17
4.5.1 USGS Regression Equations..................................................................................................................................17
4.5.2 APWA 5600 Rational Method...............................................................................................................................18
4.5.3 Previous Studies.....................................................................................................................................................19
SECTION 5.0 - HYDRAULIC MODELING..................................................................................20
5.1 INTRODUCTION............................................................................................................................20
5.2 DIGITAL TERRAIN MODEL...........................................................................................................21
5.3 STREAM NETWORK.....................................................................................................................22
5.4 CROSS-SECTION CUT-LINES......................................................................................................22
5.5 MANNING’S “n” VALUES.............................................................................................................22
5.6 BRIDGES AND CULVERTS..........................................................................................................23
5.6.1 Cross Sections........................................................................................................................................................23
5.6.2 Bridge Deck / Roadway.........................................................................................................................................23
5.6.3 Bridge Geometry....................................................................................................................................................23
5.6.4 Modeling Approach...............................................................................................................................................24
5.6.5 Internal Bridge Cross Sections...............................................................................................................................24
5.7 INEFFECTIVE FLOW AREAS .......................................................................................................24
5.8 EXPANSION AND CONTRACTION COEFFICIENTS...................................................................24
5.9 FLOW DATA...................................................................................................................................25
5.9.1 Profiles...................................................................................................................................................................25
5.9.2 Flow Change Locations..........................................................................................................................................25
5.9.3 Boundary Conditions.............................................................................................................................................25
5.9.4 Flow Conditions.....................................................................................................................................................25
5.9.5 Detention / Storage.................................................................................................................................................26
5.10 FLOODWAY ANALYSIS..............................................................................................................26
5.11 CALIBRATION.............................................................................................................................26
5.11.1 Previous Studies...................................................................................................................................................26
5.11.2 Stormwater Questionnaire....................................................................................................................................26
5.11.3 City Staff and County Staff..................................................................................................................................26
5.12 QUALITY CONTROL...................................................................................................................26
5.13 HEC-RAS Models (Provided Digitally)......................................................................................27
SECTION 6.0 - EXISTING SYSTEM PERFORMANCE.............................................................28
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City of Jefferson, Missouri
Feburary 3, 2005 iii
6.1 GRAYS CREEK..............................................................................................................................28
6.1.1 Land Use................................................................................................................................................................28
6.1.2 Hydrologic Summary.............................................................................................................................................29
6.1.3 Existing Drainage System......................................................................................................................................29
6.2 EVALUATION CRITERIA...............................................................................................................29
6.3 DRAINAGE SYSTEM PERFORMANCE........................................................................................30
6.3.1 Major Structure Modeling Results from HEC-RAS...............................................................................................30
6.3.2 Minor System Results From XP-SWMM..............................................................................................................34
SECTION 7.0 - RECOMMENDATIONS......................................................................................36
7.1 INTRODUCTION............................................................................................................................36
7.2 CITY AND COUNTY RECOMMENDATIONS................................................................................36
7.3 SURVEYOR'S OBSERVATIONS...................................................................................................36
7.4 EVALUATION OF PRIORITIES.....................................................................................................37
7.4.1 Methodology..........................................................................................................................................................37
7.4.2 Priority Definitions................................................................................................................................................37
7.5 Cost Opinions for Projects..........................................................................................................38
7.6 PROJECT 1 – Ker-Mac Street (City Project)..............................................................................38
7.6.1 Description.............................................................................................................................................................38
7.6.2 Recommended Improvement.................................................................................................................................38
7.6.3 Cost Opinion..........................................................................................................................................................39
7.6.4 Priority...................................................................................................................................................................39
7.7 PROJECT 2 – Marilyn and Low ell Drives (City Project)............................................................40
7.7.1 Description.............................................................................................................................................................40
7.7.2 Recommended Improvement.................................................................................................................................40
7.7.3 Cost Opinion..........................................................................................................................................................40
7.7.4 Priority...................................................................................................................................................................40
7.8 PROJECT 3 – Meier Drive (City Project).....................................................................................40
7.8.1 Description.............................................................................................................................................................40
7.8.2 Recommended Improvement.................................................................................................................................41
7.8.3 Cost Opinion..........................................................................................................................................................41
7.8.4 Priority...................................................................................................................................................................41
7.9 PROJECT 4 – Sue Drive (City Project)........................................................................................41
7.9.1 Description.............................................................................................................................................................41
7.9.2 Recommended Improvement.................................................................................................................................42
7.9.3 Cost Opinion..........................................................................................................................................................42
7.9.4 Priority...................................................................................................................................................................43
7.10 PROJECT 5 – Air View Drive and Royal Air Drive (City Project)............................................43
7.10.1 Description...........................................................................................................................................................43
7.10.2 Recommended Improvements..............................................................................................................................43
7.10.3 Cost Opinion........................................................................................................................................................43
7.10.4 Priority.................................................................................................................................................................44
7.11 PROJECT 6 – Bolton Drive and Douglas Drive (City Project)................................................44
7.11.1 Description...........................................................................................................................................................44
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City of Jefferson, Missouri
Feburary 3, 2005 iv
7.11.2 Recommended Improvements..............................................................................................................................44
7.11.3 Cost Opinion........................................................................................................................................................44
7.11.4 Priority.................................................................................................................................................................44
7.12 PROJECT 7 – Boonville Road (City Project)............................................................................45
7.12.1 Description...........................................................................................................................................................45
7.12.2 Recommended Improvements..............................................................................................................................45
7.12.3 Cost Opinion........................................................................................................................................................45
7.12.4 Priority.................................................................................................................................................................45
7.13 PROJECT 8 - Binder Park (City Project)...................................................................................46
7.13.1 Description...........................................................................................................................................................46
7.13.2 Recommended Improvement...............................................................................................................................46
7.13.3 Cost Opinion........................................................................................................................................................46
7.13.4 Priority.................................................................................................................................................................47
7.14 PROJECT 9 - Del Mar Drive (City Project)................................................................................47
7.14.1 Description...........................................................................................................................................................47
7.14.2 Recommendation.................................................................................................................................................47
7.14.3 Cost Opinion........................................................................................................................................................47
7.14.4 Priority.................................................................................................................................................................47
7.15 PROJECT 10 - Floodplain Development South of Business 50 (County Project)................48
7.15.1 Description...........................................................................................................................................................48
7.15.2 Recommendation.................................................................................................................................................48
7.15.3 Cost Opinion........................................................................................................................................................48
7.15.4 Priority.................................................................................................................................................................48
7.16 PROJECT 11 – Ravenwood Drive (County Project)................................................................48
7.16.1 Description...........................................................................................................................................................48
7.16.2 Recommended Improvement...............................................................................................................................49
7.16.3 Cost Opinion........................................................................................................................................................49
7.16.4 Priority.................................................................................................................................................................49
7.17 PROJECT 12 – Flanders Road (County Project)......................................................................50
7.17.1 Description...........................................................................................................................................................50
7.17.2 Suggested Improvement.......................................................................................................................................50
7.17.3 Cost Opinion........................................................................................................................................................50
7.17.4 Priority.................................................................................................................................................................51
7.18 PROJECT 13 - Angelia Avenue (County Project).....................................................................51
7.18.1 Description...........................................................................................................................................................51
7.18.2 Recommended Improvement...............................................................................................................................51
7.18.3 Cost Opinion........................................................................................................................................................51
7.18.4 Priority.................................................................................................................................................................52
7.19 PROJECT 14 – Schumate Chapel Road Culvert (County Project).........................................52
7.19.1 Description...........................................................................................................................................................52
7.19.2 Recommended Improvement...............................................................................................................................52
7.19.3 Cost Opinion........................................................................................................................................................52
7.19.4 Priority.................................................................................................................................................................53
SECTION 8.0 - GLOSSARY OF TERMS...................................................................................68
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City of Jefferson, Missouri
Feburary 3, 2005 v
8.1 DEFINITIONS.................................................................................................................................68
8.2 ACRONYMS...................................................................................................................................71
APPENDIX A – HYDROLOGIC MODEL DATA AND RESULTS
APPENDIX B – HYDRAULIC MODEL DATA AND RESULTS, XPSWMM
APPENDIX C –HEC-RAS RESULTS, EXISTING CONDITIONS
APPENDIX D –HEC-RAS RESULTS, FUTURE CONDITIONS
APPENDIX E – SURVEYOR'S STRUCTURE COMMENTS
APPENDIX F – EXHIBITS
Exhibit 1 Grays Creek Watershed
Exhibit 2 Grays Creek Soil Classifications
Exhibit 3 Hydrologic Modeling Data
Exhibit 4 Existing Conditions Land Use Plan
Exhibit 5 Future Conditions Land Use Plan
Exhibit 6 Existing and Future 100-year Floodplains
Exhibit 7 Capital Improvements Plan
LIST OF TABLES
Table 1-1 Summary of Recommendations ........................................................................................2
Table 4-1 Rainfall Depths for City of Jefferson, Missouri..............................................................13
Table 4-2 Runoff Coefficients...........................................................................................................14
Table 4-3 Model Calibration Analysis Results................................................................................18
Table 4-4 Small Subshed Flow Comparison...................................................................................19
Table 5-1 Summary of Grays Creek HEC-RAS Model....................................................................20
Table 5-2 Data Development.............................................................................................................21
Table 5-3 Manning’s Roughness Coefficients ................................................................................23
Table 5-4 Expansion and Contraction Coefficients........................................................................25
Table 6-1 Land Use in Grays Creek..................................................................................................29
Table 6-2 Hydrologic Characteristics of Grays Creek....................................................................30
Table 6-3 Existing Design Criteria for Enclosed Systems and Culverts......................................31
Table 6-4 Existing Design Criteria for Open Channels..................................................................31
Table 6-5 HEC-RAS Analysis of Major Structures..........................................................................32
Table 6-6 Enclosed System Performance Results.........................................................................36
LIST OF FIGURES
Figure 1-1 Capital Improvement Projects...........................................................................................4
Figure 4-1 SCS Rainfall Distribution.................................................................................................12
Figure 4-2 Rainfall Depths for City of Jefferson, Missouri.............................................................13
Figure 7-1 Project 1 - Ker-Mac Street................................................................................................54
Figure 7-2 Project 2 - Marilyn and Lowell Drives.............................................................................55
Figure 7-3 Project 3 - Meier Drive......................................................................................................56
Figure 7-4 Project 4 - Sue Drive.........................................................................................................57
Figure 7-5 Project 5 - Air View Drive and Royal Air Drive...............................................................58
Figure 7-6 Project 6 - Bolton Drive and Douglas Drive...................................................................59
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Feburary 3, 2005 vi
Figure 7-7 Project 7 - Boonville Road...............................................................................................60
Figure 7-8 Project 8 - Binder Park.....................................................................................................61
Figure 7-9 Project 9 - Del Mar Drive..................................................................................................62
Figure 7-10 Project 10 - Floodplain Development South of Business 50 .....................................63
Figure 7-11 Project 11 - Ravenwood Drive.......................................................................................64
Figure 7-12 Project 12 - Flanders Road............................................................................................65
Figure 7-13 Project 13 - Angelia Avenue..........................................................................................66
Figure 7-14 Project 14 - Schumate Chapel Road Culvert...............................................................67
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 1
SECTION 1.0 - EXECUTIVE SUMMARY
1.1 GENERAL INFORMATION
Burns & McDonnell Engineering Company was authorized by the City of Jefferson to study the area of
the Grays Creek Watershed located along the north central boundary of Cole County defined by the
Missouri River (see Exhibit 1). The area included approximately 24.3 square miles of drainage area,
encompassing portions of the City of Jefferson, Missouri and unincorporated areas of Cole County.
The Grays Creek Stormwater Master Plan is the third phase of the City of Jefferson Stormwater Master
Plan. The purpose of this master plan study is to analyze the existing storm drainage system, identify
areas of potential flooding, and recommend improvements to mitigate potential flooding problems.
Preliminary cost estimates were developed to determine the requirements of implementing the capital
improvements plan for the watershed. Detailed design efforts, which were beyond the scope of this study,
will generally be required for the development of Bid Documents.
1.2 METHODOLOGY
1.2.1 Hydrology
The hydrologic analysis for this Master Plan was completed using the RUNOFF program block within the
XP-SWMM 2000 stormwater management computer model (Version 8.52) from XP Software
Incorporated.
1.2.2 Hydraulics
The HEC-RAS program (Version 3.1.1 from the U.S. Army Corp of Engineers) was used to calculate
water surface profiles for steady, gradually varied flow in natural and improved open channels with a
tributary area of 160 acres or more. The model was also used to evaluate the effects of various
obstructions such as bridges, culverts, weirs and structures within the floodplain of the modeled stream.
HEC-RAS calculations estimate the water surface elevations in a river reach based on flows from the
hydrologic model (XP-SWMM RUNOFF). For culverts draining from 10 to 160 acres and enclosed
systems larger than a 24-inch diameter capacity, a hydraulic analysis was completed using the EXTRAN
program block (or Hydraulics Mode) within the XP-SWMM stormwater management computer model.
1.3 WATERSHED MAPPING
The previous FEMA Flood Insurance Study was published October 6, 1981. Since that time, the
watershed has experienced considerable urbanization. Additionally, advances in hydrologic and
hydraulic modeling, the introduction of Geographical Information Systems (GIS) and new aerial
topography promote a new and more accurate representation of floodplains.
For this study, new floodplains were developed for the 100-year storm event for existing and future
surface conditions (see Exhibit 6). It was not within the scope of this study to prepare a FEMA map
revision, nor are the floodplains intended to be used for flood insurance purposes.
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City of Jefferson, Missouri
Feburary 3, 2005 2
1.4 RECOMMENDED IMPROVEMENTS
Improvements were developed for those conveyance structures that were either causing habitable building
flooding, posed an immediate or future safety concern, or were identified by the City or County as
priority projects. The objective of the improvements was to develop a feasible planning level conceptual
solution.
Based on modeling studies and input from the City and County, the flooding problems identified in this
study were grouped into 14 projects. Two of these projects are not prioritized because they are on
privately owned roads, but they are included to suggest needed improvements with cost estimates.
Table 1-1, Figure 1-1 and Exhibit 7 summarize these projects
Table 1-1
Summary of Recommendations
Project Structure
Number Location Description Construction
Cost Priority
1 GC004,
GC0743 City Ker-Mac Road: dry detention pond, culvert,
and pipe replacements. $1,150,000 HIGH
2 various City Marilyn & Lowell: R&R inlets and pipes,
add inlets and pipes. $84,500 HIGH
3 various City Meier Drive: R&R inlets and pipes, add
inlets and pipes, engineer channel. $487,000 HIGH
4 GC0740,
GC0711 City Sue Drive: R&R inlets and pipes, add inlets
and pipes. $210,500 HIGH
5 various City Airview & Royal Drive: R&R inlets and
pipes, add inlets and pipes. $442,500 MEDIUM
6 various City Bolton & Douglas: R&R inlets and pipes,
engineer channel. $137,500 LOW
7 various City Boonville Drive: R&R inlets and pipes, add
inlets and pipes, engineer channel. $113,000 LOW
8 various City Binder Park: replace low water crossings. $658,000 FUTURE
9 GR-0171 City Del Mar Drive: enlarge channel, replace
culvert NA NA
10 various County South of US Hwy 50 Business: restrict new
runoff. NA HIGH
11 GT-009,
GT008 County
Ravenwood Drive: privately owned low
water crossing, no improvement is
recommended.
NA NA
12 GT-050 County Flanders Road: privately owned low water
crossing, no improvement is recommended. NA NA
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 3
Table 1-1
Summary of Recommendations
Project Structure
Number Location Description Construction
Cost Priority
13 various County Angelia Avenue: R&R inlets and pipes, add
inlets and pipes. $350,500 MEDIUM
14 GT-019 County Schumate Chapel Road: add culvert. $37,000 FUTURE
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 5
SECTION 2.0 - INTRODUCTION
In the year 2001, the City of Jefferson embarked on a program to develop stormwater master plans for
each of the City’s major watersheds. This program is based on a recognized need to upgrade existing
inadequate stormwater conveyance systems and to plan for new systems in developing areas. The
economic well being of the City depends on its ability to attract and retain business and industry as well
as residents to live in the City. Part of the City’s ability to attract business and residents depends on its
ability to provide adequate services such as drinking water, sewers, transportation and stormwater
management.
Historically, stormwater management has only been a concern when major floods occur. With increased
development and the associated increases in impervious area due to development, the volume of runoff
from rainfall and the frequency of flooding have correspondingly increased. This has caused the City to
focus its attention on the need to provide improved stormwater management facilities in all areas of the
City.
2.1 PROJECT TEAM
Burns & McDonnell Engineering was the prime contractor for this study. Central Missouri Professional
Services, Inc. conducted the field surveys.
Burns & McDonnell Engineering
9400 Ward Parkway
Kansas City, Missouri 64114
phone: (816) 333-9400
Project Manager: Galen Miller, PE
Central Missouri Professional Services
2500 East McCarty Street
Jefferson City, Missouri 65101
phone: (573) 634 3455
Contact: Keith Brickey
2.2 STUDY AREA
The area of study for this report is limited to the Grays Creek Watershed located along the north central
boundary of Cole County defined by the Missouri River (see Exhibit 1). The area included
approximately 24.3 square miles of drainage area, encompassing portions of the City of Jefferson and
unincorporated areas of Cole County.
2.3 PURPOSE
The Grays Creek Watershed Study is the third phase of the City of Jefferson Stormwater Master Plan.
The purpose of this study is to analyze the existing storm drainage system, identify areas of potential
flooding, and recommend improvements to mitigate potential flooding problems. The major causes of
flooding are typically due to factors such as:
• Increase in runoff resulting from urbanization of the watershed
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 6
• Inadequate capacity of channels and drainage system components, such as bridges
culverts, and enclosed pipes.
• Blockage of structures caused by accumulation of debris and silt.
Preliminary cost estimates were developed to determine costs required for implementation of the needed
stormwater system Capitol Improvements. Detailed design, which was beyond the scope of this study,
will be required for the production of construction plans for each improvement.
2.4 SCOPE OF SERVICES
This report presents an assessment of many aspects of stormwater management practices and the
requirements of the existing system in the Grays Creek watershed. The following major tasks are
included in this study:
2.4.1 Information Review
A comprehensive review of the existing information and studies provided an understanding of existing
conditions and the capital improvement plans previously proposed and/or implemented. This task
involved the assemblage, review and organization of existing mapping, records, reports, ordinances,
criteria and floodplain studies available from the City, County and other sources.
2.4.2 Field Investigations and Inventory
A survey of the watershed and drainage system was conducted within the study area. The purpose of the
field investigation was to obtain specific information on existing piping systems, channels and structures.
Observations were recorded in a standardized format and supplemented with photographic records. Data
gathered included the following items:
• Measurement of hydraulic parameters
• Estimation of flow depth at which damage occurs
• Observation of site-specific factors that may impact corrective alternatives available
for consideration or special costs of capital improvements
• Logging of information in a GIS-compatible format.
2.4.3 Existing System Evaluation
Hydrologic and hydraulic models were developed for drainage system components (structures and/or
natural and improved channels) beginning at the point where approximately 160 acres are tributary. The
stormwater system was evaluated under the following three (3) conditions:
• Existing conditions with the existing storm sewer system – This plan represents
conditions as currently observed within the watershed.
• Future surface conditions with the existing storm sewer system – This plan
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City of Jefferson, Missouri
Feburary 3, 2005 7
represents conditions that could occur as the watershed develops without making
improvements to the existing sewer system.
• Future surface conditions with an improved storm drainage system – This plan
predicts conditions assuming a further developed watershed with the capital
improvements recommended in this report.
2.4.4 Watershed Mapping
The previous FEMA Flood Insurance Study was published October 6, 1981 and only mapped the East
Branch of Grays Creek. Since that time, the watershed has experienced considerable urbanization.
Additionally, advances in hydrologic and hydraulic modeling, the introduction of Geographical
Information Systems (GIS) and new aerial topography promote a new and more accurate representation of
floodplains.
For this study, new floodplains were developed for the 100-year storm event for existing and future
surface conditions (see Exhibit 5). It was not within the scope of this study to prepare a FEMA map
revision.
2.4.5 Capital Improvements Plan
A Capital Improvements Plan (CIP) was developed as part of this study. The CIP recommends
prioritized, long-range capital improvement projects within the Grays Creek Watershed. Specific projects
have been identified and selected based on deficiencies identified by the existing system performance
modeling and complaint records (see Exhibit 7 and Figure 1-1).
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 8
SECTION 3.0 - DATA COLLECTION
3.1 DATUM AND PROJECTION INFORMATION
Mapping data was provided to the City in GIS format referenced to the following datum and projection
information:
Horizontal Datum: 1983 North American Horizontal Datum (NAD83)
Vertical Datum: North American Vertical Datum 1988 (NAVD88)
Coordinate System: Missouri Central State Plane (FIPS Zone 2402 - Feet)
3.2 MAPPING SOURCES
• Topography – 2-foot contour interval
• Mass Points and Break Lines
• Aerial Photography
• Planimetrics
• Soils Information – Soil mapping from the University of Missouri Spatial Data
Information Service (MSDIS)
• Land Use / Land Planning (Zoning)
3.3 FIELD INVESTIGATIONS
Elevation and location surveys of the stormwater drainage system were conducted in conjunction with
this study. Surveys collected the hydraulic data for drainage structures within the study area identified by
Burns & McDonnell, City, and County Staff. Significant drainage structures were generally identified by
the following criteria:
• 24” diameter (or equivalent capacity).
• Major structures (bridges or culverts) with tributary areas of 160 acres or greater.
• Culverts draining areas from 10 to 160 acres.
• Structures within proximity of buildings or other significant land objects.
• Other structures of interest identified by City and County staff.
For those structures that were not surveyed, but are part of the conveyance system modeled, openings
were measured and inverts approximated from the available topography.
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City of Jefferson, Missouri
Feburary 3, 2005 9
A combination of Global Positioning Systems (GPS) and total station technology was used to obtain the
required elevations for surveyed structures. Elevation information was collected using a data collector.
Additional information, such as shape, material, condition, type, etc. was recorded on standardized forms.
The data collected at the various types of drainage structures is listed below.
3.3.1 Major Structures (Bridges/Culverts)
• Upstream and downstream channel cross-sections
• Structure opening dimension information
• Low chord and top of road elevations
• Top centerline elevation section to define weir flow overtopping the structure
• X, Y, and Z coordinate information
• Other unusual or pertinent information
• Digital photographs consisting of upstream face, looking upstream, downstream face,
and looking downstream
3.3.2 Culverts
• Structure opening dimension information
• Culvert material of construction and condition
• Other unusual or pertinent information
• Digital photographs at each manhole, junction, curb inlet, and outfall
3.3.3 Cross-Sections
Stream cross-sections surveyed at selected locations throughout the watershed were used to verify the
accuracy of the contour data and provided more detailed information as needed.
3.4 PROJECT PHOTOGRAPHS
As part of the scope of the project, digital photographs were taken of every hydraulic structure (i.e.
bridges, culverts, and inlets, etc.) studied during the project. Project photographs are furnished digitally.
3.5 OTHER SOURCES OF INFORMATION
In addition to the information described above, several other sources of information were consulted
during completion of the project:
• Q3 Floodplain Boundaries – FEMA
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 10
• Flood Insurance Rate Maps (FIRM’s) – FEMA
• Flood Insurance Study (FIS) - FEMA
3.6 ESTIMATES AND PROJECTIONS
The estimates, opinions of probable cost, and projections prepared by Burns & McDonnell relating to
construction costs, schedules, operation and maintenance costs, and modeling results are based on our
experience, qualifications and judgment as a professional consultant. Because Burns & McDonnell has
no control over weather, cost and availability of labor, material and equipment, labor productivity,
construction contractor's procedures and methods, unavoidable delays, construction contractor's methods
of determining prices, economic conditions, government regulations and laws (including the
interpretation thereof), competitive bidding or market conditions and other factors affecting such
estimates or projections, Burns & McDonnell does not guarantee that actual costs, performance,
schedules, etc., will not vary from the estimates, opinions of probable cost, and projections prepared.
3.7 INFORMATION PROVIDED BY CLIENT
In the preparation of this report, the information provided by the Client was used to make certain
assumptions with respect to conditions. While Burns & McDonnell believes the assumptions made are
reasonable for the purposes of this report, Burns & McDonnell makes no representation that the
conditions assumed, in fact, occur. In addition, while Burns & McDonnell has no reason to believe that
the information provided by the Client, and on which this report is based, is inaccurate in any material
respect, Burns & McDonnell has not independently verified such information and cannot guarantee its
accuracy or completeness. To the extent that actual conditions differ from those assumed herein or from
the information provided to Burns & McDonnell, the actual results will vary.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 11
SECTION 4.0 - HYDROLOGIC MODELING
4.1 INTRODUCTION
The hydrologic analysis for this Master Plan was completed using the RUNOFF program block within the
XP-SWMM 2000 stormwater management computer model (Version 8.52) from XP Software
Incorporated, an enhanced EPASWMM 4.4 program.
The RUNOFF block generates runoff hydrographs at desired locations in the watershed for specific storm
events. SWMM contains three program blocks; RUNOFF, TRANSPORT, and EXTRAN. TRANSPORT
and EXTRAN (extended transport) are routing programs. The RUNOFF block simulates surface runoff
within an area and the subsequent routing through various drainage system components occurs within the
selected transport block. Runoff and routing are simulated based on the specific input parameters for
each component of the process.
For this study, the RUNOFF block was used to generate hydrographs for return periods of 10, 25, 50 and
100 years. The EXTRAN block was used to determine the peak flows at each of the drainage system
components. Methods used in the hydrologic modeling include the Soil Conservation Service’s (SCS)
Type II hypothetical storm generated from rainfall frequency data for precipitation, the SCS curve
number for the loss rate, and the SCS dimensionless unit hydrograph.
4.2 WATERSHED DELINEATION
4.2.1 Subarea Boundaries
The Grays Creek Watershed was divided into subwatershed areas. The first step of subarea boundary
delineation divides the watershed into areas no larger than 160 acres at the upper reaches of the
conveyance system. The second step will define areas much smaller than 160 acres at the upper reaches.
These smaller areas are needed to accurately model the hydrology for the enclosed systems having
diameters equal to or greater than 24 inches within existing or future corporate limits. All subareas were
appropriately delineated for a planning level study based on hydrologic and/or hydraulic features, such as
terrain, channels joining, and culverts/bridges within the Grays Creek Study Area. Exhibit 3 shows the
subareas associated with the Grays Creek Watershed. Each subarea was assigned a unique identifier in
the hydrologic model.
4.3 PRECIPITATION
4.3.1 General
Each and every storm event that occurs within a watershed is unique. Some storms are short and intense
and deposit a large amount of rainfall in a short period of time. Other storms have a constant rainfall
intensity that occurs over a long period of time. Because there is no means to predict the characteristics
of a given storm, a synthetic or design storm is typically used for hydrologic modeling. A design storm is
simply an assumed distribution of rainfall over a given amount of time.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 12
4.3.2 Rainfall Distribution
For this study, a Soil Conservation Service (SCS) Type II rainfall distribution was used. The SCS
distribution was prepared for use in the United States for storms of 6 and 24-hour durations. The Type II
storm distribution is applicable to central Missouri. The distribution of rainfall is shown in Figure 4-1.
4.3.3 Rainfall Depths
Technical Paper No. 40 Rainfall Frequency Atlas of the United States (TP-40) was used to determine the
rainfall depths for various storm recurrence periods and various time periods. The TP-40 based data is
shown in Table 4-1 below:
SCS Rainfall Distribution
0%
20%
40%
60%
80%
100%
0%20%40%60%80%100%
Percent of Storm Duration
Cu
m
m
u
l
a
t
i
v
e
P
e
r
c
e
n
t
o
f
Ra
i
n
f
a
l
l
Figure 4-1
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 13
Table 4-1
Rainfall Depths for City of Jefferson, Missouri
Depth (inches)
Time 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr
5 min 0.45 0.54 0.6 0.69 0.77 0.84
10 min 0.71 0.87 0.98 1.14 1.27 1.4
15 min 0.89 1.1 1.24 1.45 1.62 1.78
30 min 1.19 1.5 1.71 2.02 2.26 2.5
1 hr 1.5 1.92 2.2 2.61 2.93 3.25
2 hr 2 2.5 2.9 3.3 3.75 4.2
3 hr 2.25 2.75 3.25 3.75 4.15 4.65
6 hr 2.65 3.3 3.85 4.45 4.9 5.55
12 hr 3.25 3.85 4.55 5.2 5.8 6.55
24 hr 3.5 4.55 5.35 6.1 6.7 7.5
4.3.4 Rainfall Duration
The design storm used in the analysis of a drainage system is the pattern of rainfall over a specific
duration for a given return period. The duration that puts the greatest demand on the system is termed the
“critical storm duration” and is roughly equal to the time of concentration of the watershed. Time of
concentration, Tc, is the time at which the entire drainage area begins to contribute runoff. It may also be
defined as the time required for runoff to flow from the farthest point in the watershed to the outlet. The
“critical” duration represents the minimum time required to insure that runoff from all parts of the
drainage area is included in the peak discharge measured at the outlet. The design storm duration used in
this project was the 6-hour storm for all return periods.
4.4 RUNOFF
4.4.1 Soils
NRCS soils information used for calculating hydrologic parameters was obtained in an electronic format
from the Missouri Spatial Data Information Service (MSDIS)1. According to the source, soil scientists
manually compiled field maps on 1:24000 scale one-third-quadrangle ortho-photography in the 1927
North American Datum (see Exhibit 2).
1 University of Missouri, Department of Geography, Missouri Spatial Data Information Service,
http://msdis.missouri.edu/
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 14
4.4.2 Land Use
4.4.2.1 Existing Conditions
In order to determine the parameters needed for the hydrologic model, a land use map was developed for
the watershed (see Exhibit 4). Land use parameters influencing runoff were estimated from aerial
photography and field observations. The curve numbers shown in Table 4-2 were taken from TR-55,
Urban Hydrology for Small Watersheds2. Curve numbers represent antecedent moisture condition II.
Table 4-2
Runoff Coefficients
Curve Numbers for Hydrologic Soil
Group
Cover Type / Land Use A B C D
Agricultural 60 72 80 84
Brush 30 48 65 73
Commercial 89 92 94 95
High Density Residential 77 85 90 92
Impervious Area 98 98 98 98
Industrial 81 88 91 93
Low Density Residential 54 70 80 85
Meadow & Pasture 39 61 74 80
Medium Density
Residential
61 75 83 87
Parks & Open Space 39 61 74 80
Public & Semi Public 77 85 90 92
Wooded Areas 30 55 70 77
4.4.2.2 Future Surface Conditions
Hydrologic parameters for the future surface condition were based on planning information provided by
the City and engineering judgment (see Exhibit 5). Several areas were assigned land uses equivalent to
2 U.S. Department of Agriculture, Natural Resource Conservation Service, Conservation Engineering Division,
Urban Hydrology for Small Watersheds, Technical Release 55, June 1986.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 15
their proposed zoning designation. Additional criteria used to fill out the future surface condition map are
as follows:
• Adjacent to state routes, a 330 foot strip each side of roadway defined as commercial.
• Adjacent to major intersections involving state routes or major arterials, a 660 foot strip on each
side of each intersecting roadway defined as commercial while extending 660 foot in all
directions from the intersection.
• For large contiguous areas that have been developed with multiple residential properties, define
these areas as residential (low, medium or high density where appropriate).
• For already developed or developing subdivision areas, define with no change for the future
surface condition.
• On presently undeveloped ground, define as undeveloped if in a floodplain or zoned as open
space, park or recreational. In all other cases, define as low or medium residential based on the
area topography, i.e. as the ground slope increases the development decreases to none.
These additional criteria dictated that the curve number classifications should be slightly modified in the
future land use scenario. In areas where steepness appeared to be a determining factor in future
development the land was give a runoff curve number equivalent to meadow or pasture. Most floodplains
were given a runoff curve cumber equivalent to agricultural, and most of the remaining undeveloped land
was given a curve number equivalent to medium density residential. Brush and woods were not used for
future land use classification. These categorizations were seen as conservative judgments with respect to
the ultimate land uses in the basin.
4.4.3 Loss Method
The SCS Curve Number Loss Method was utilized according to the technical guidelines prescribed by the
TR-55 Manual. Based on the combinations of soils types and land use characteristics shown in Table 4-
2, a weighted runoff curve number was estimated for each subarea. This was done by subdividing each
subarea into polygons representing every combination of land use and soils type. With a curve number
assigned to each polygon, a weighted curve number was calculated for the entire subarea as follows.
Weighted Curve No. = ∑(AI x CNi) / ∑AI
Where
Ai = area of each shape
AI = area of the subarea, acres
CNi = Curve No. assigned to a given polygon
4.4.4 Subarea Lag Time
For each subarea, a lag time was estimated using the SCS lag equation:
()
5.0
7.08.0
1900
1
Y
SlTl
+=
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 16
Where: Tl = lag, hrs
L = length of mainstream to farthest divide, ft
S = potential maximum retention, in (1000 / CN – 10)
CN = SCS curve number
Y = average slope of watershed, %
4.4.5 Time of Concentration
For each subarea, a time of concentration was calculated based on the following SCS relationship:
Where: TL = lag time, hrs
TC = time of concentration, hrs
4.4.6 Hydrographs
For each subarea, a flow hydrograph was calculated using the SCS dimensionless curvilinear unit
hydrograph method.
4.4.7 Conveyance Routing
XP-SWMM performs hydraulic flow routing for channel and/or closed conduit systems. At the heart of
this graphical input-output interface, is the SWMM 4.4h engine including the EXTRAN block. The
EXTRAN block receives hydrograph input at specific nodal locations from the RUNOFF block.
EXTRAN performs dynamic routing of stormwater flows through the storm drainage system to an outfall
representing the receiving water system. The program will model branched or looped networks,
backwater conditions, free-surface flow, pressure flow or surcharge, flow reversals, flow transfer by
weirs, orifices and pumps, and storage facilities.
Conveyance elements (channels, pipes, etc.) were given a value for the Manning’s "n" coefficient, which
is a measure of the roughness of the element and is used in both EXTRAN and HEC-RAS to calculate
flows and water surface elevations. These "n" values were selected using field observations, project
photos, aerial photos, and engineering judgment. Additionally, selected channels were idealized and
modeled with trapezoidal or 8-point cross-sections within the EXTRAN block. Where trapezoidal cross
sections were used to represent both channel and overbank a composite "n" value was derived from a
preliminary 100-year storm processed in HEC-RAS.
Overland flow channels were used above all closed conduits to eliminate ponding and facilitate the
movement of surface flow downstream allowing for more conservative peak flows. Each overland flow
channel simulated a cross sectional shape appropriate for its location. This cross sectional shape could
CLTT6.0=
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 17
represent a roadway sag over a culvert, a gutter section, a backyard swale, or a sideyard swale between
properties.
4.5 MODEL CALIBRATION
Grays Creek is an ungaged stream therefore it is not possible to calibrate the model by definition.
However, it is possible to ascertain the soundness of the calculated flows by comparison to previous
studies, regression equations, and APWA 5600 methods.
4.5.1 USGS Regression Equations
Estimates of flood-peak discharges for standard recurrence intervals are available from the U. S.
Geological Survey in the form of a set of published regression equations. These equations were used to
calibrate existing condition 100-year peak flows. Regression equations are mathematically derived from
synthetic peak-discharge data from calibrated rainfall-runoff model simulations using long-term rainfall
and evaporation data for 9 sites and observed peak-discharge data at 18 sites in urban areas and 10 sites in
rural areas of Missouri.
For the state of Missouri, USGS Fact Sheet 015-01, March, 2001 "The National Flood-Frequency
Program--Methods for Estimated Flood Magnitude and Frequency in Rural and Urban Areas in Missouri,
2000" was used to judge the accuracy of the hydrologic results obtained from XP-SWMM.
Explanatory variables for rural and urban basins differ. For rural basins, the variables of interest are area
in square miles and channel slope. Variables for urban areas are the area of the basin in square miles and
the Basin Development Factor (BDF). The BDF is the sum of scores assigned to four different
characteristics of the basin that are related to urbanization: channel improvements, channel linings, storm
drains, and curb-and-gutter streets.
Owing to the nature of the process, and the limited types of data used in obtaining these estimates, the
possible error is quite large in the USGS estimates. The standard error produces an interval around the
computed value for any of these equations that will include about two thirds of the actual values that
might occur. The standard error for the different recurrence intervals ranges from 26% to 33% for urban
equations and between 31% and 43% for the rural equations.
Both rural and urban 100-year flows were examined in the analysis of this watershed for existing
conditions. An urban basin is one in which greater than 5 percent of the drainage area is subject to
commercial, industrial, or residential development. It was observed that some of the basin areas have
characteristics that are representative of both a rural and urban basins. That is they will contain large
areas that are still rural while also containing significant urban areas. The analysis results are shown in
Table 4-3.
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City of Jefferson, Missouri
Feburary 3, 2005 18
Table 4-3
Model Calibration Analysis Results
Area Area USGS USGS SWMM
Type Rural Urban
Area
Number
(mi2) (cfs/acre) (cfs/acre) (cfs/acre)
Percent
Difference
1 3.45 Rural 1.25 1.12 10.5
2 1.25 Urban 1.85 2 -8.4
3 1.43 Urban 1.8 1.76 2.2
4 1.89 Urban 1.69 1.44 14.7
5 1.61 Urban 1.86 1.92 -3.3
6 1.3 Urban 2.3 2.33 -1.1
7 6.55 Rural 0.95 0.96 -1.3
8 7.08 Urban 1.45 1.48 -2.3
9 18.75 Urban 0.58 1.03 0.86 16.3*
10 23.98 Urban 0.39 0.97 0.57 41.5*
11 5.5 Rural 1.09 0.98 9.9
12 15.59 Urban 0.77 1.07 0.99 7.9*
(* - Areas containing large rural areas, basins in transition.)
For those areas listed as rural, the RUNOFF output was in close agreement with the rural regression
equations (within the standard error on all three of the rural areas). The percent difference was from –1.3
to 10 percent. For the urban areas, a BDF of 3 was used for area 5, a BDF of 7 for area 6, a BDF of 5 for
area 8, and BDF of 1 for all other areas. The urban RUNOFF flows were within the standard error except
for area 10. Area 10 contains large undeveloped areas giving it very rural characteristics. It is due to this
transitioning from rural to urban, that the 100-year peak flow is acceptable for area 10.
4.5.2 APWA 5600 Rational Method
A further check was made in regards to small subshed areas, those areas of 200 acres or less. Twelve
subshed areas were selected and analyzed using the APWA 5600 rational method for calculating peak
flows. The Rational Method 10-year and 100-year peak flows were then compared to the XP-SWMM 10
and 100-year flows. The results are listed in Table 4-4.
For the 10-year, the Rational Flows are on average 35 percent higher than the SWMM flows. This is not
unexpected. The intent of the Rational Method is to produce conservative flows. Therefore as a city
develops its drainage infrastructure is reasonably overdesigned. This overdesign generally dissipates as
the drainage area under analysis becomes smaller (20 acres or less.) For the 100-year, the Rational Flows
are generally within ±30 percent of the SWMM flows. Further adjustment of the Rational Method
parameters did not produce a tighter agreement. Therefore it was determined that no further adjustment
was needed based on the combined results of the three comparison methods.
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Feburary 3, 2005 19
Table 4-4
Small Subshed Flow Comparison
SWMM
Node
Acres Rational
10-year
flow (cfs)
SWMM
10-year
flow (cfs)
10-year
Percent
Difference
Rational
100-year
flow (cfs)
SWMM
100-year
flow (cfs)
100-year
Percent
Difference
75 22.5 66 59 12 82.4 100 -18
125 71.4 138.3 137 1 172.9 238 -27
143 85 212.2 117 81 265.3 194 37
53022 61.5 182.9 96 91 228.6 167 37
53067 12.4 40 38 5 50 69 -28
53084 11.5 36.8 40 -8 46 66 -30
55058 74.4 160.6 107 50 200.7 181 11
55165 11.1 38.1 47 -19 47.6 77 -38
55206 111.7 242.1 213 14 302.6 372 -19
55296 43.8 102.4 62 65 128 106 21
55527 37.1 141.9 67 112 177.3 119 49
55592 125.4 227.7 204 12 284.6 352 -19
4.5.3 Previous Studies
Of the previous information reviewed for the Grays Creek Master Plan, two studies contain relevant
information and only for the Grays Creek east tributary. The FEMA Flood Insurance Study of 1981
reported a flow of 1962 cfs for the 100-year event. The S&V Consultants reported a 100-year flow of
2000 cfs in a study completed in 1982. The RUNOFF block for this study calculated a flow of 1960 cfs
for the same tributary and 100-year return period. These numbers are in close agreement and can be
considered equal for this level of analysis.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 20
SECTION 5.0 - HYDRAULIC MODELING
5.1 INTRODUCTION
The HEC-RAS program (Version 3.1.1) was used to calculate water surface profiles for steady, gradually
varied flow in natural and improved open channels. These results are available directly from the model,
in table format in Appendices C and D of this report, and the 100-year water-surface elevations are
attached to the cross sections in ArcMap.
The model was also used to evaluate the effects of various obstructions such as bridges, culverts, weirs
and structures within the floodplain of the modeled stream. HEC-RAS estimates water surface elevations
in a river reach based on flows from the hydrologic block (RUNOFF) of XP-SWMM. This section
discusses the procedures used for the Grays Creek project and guidelines developed during previous
studies for developing HEC-RAS models. Additionally, this section describes in detail data development,
model development, model-input parameters, data format, naming conventions, and calibration.
Table 5-1 summarizes some of the watershed characteristics incorporated into the HEC-RAS model.
Table 5-1
Summary of Grays Creek HEC-RAS Model
Number of Reaches Modeled 37
Total Miles of Stream Network Modeled 21.9
Miles of Main Channel 9.1
Miles of Tributary Channel 12.8
Total Number of Cross-Sections 421
Average Cross-Section Spacing (ft) 274
Total Number of Hydraulic Structures Modeled 43
Number of Bridges Modeled 7
Number of Culverts Modeled 36
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 21
A summary of input parameters is presented in Table 5-2 and developed as follows:
Table 5-2
Data Development
Model Parameter
Data Development
Method Requirements
Stream Network
ArcView/GIS and
HEC GeoRAS Stream network coverage with stream reach Ids
Cross-Sections
ArcView/GIS and
HEC GeoRAS TIN, cross-section cut-line coverage
Flow Lengths
ArcView/GIS and
HEC GeoRAS
Channel and overbank (left and right) flow path
coverage
Channel Manning’s
“n” Values
ArcView/GIS and
Manual Input
Assigned by engineer and adjusted during
calibration, aerial photos
Overbank Manning’s
“n” Values
ArcView/GIS and
Manual Input Land surface coverage created from aerial photos
Roadway Crossings
Field Survey,
ArcView/GIS and
Manual Input Roadway profile and bridge or culvert opening
Expansion and
Contraction
Coefficient Manual Input Photos, contour and cross-section coverage
Boundary Conditions
Manual Method and
FlowMaster Normal depth calculations
Ineffective Flow Areas Manual Input Photos, contour and cross-section coverage
Channel Bank Stations
ArcView/GIS and
Manual Input Cross-section coverage
Exhibit 6, located in Appendix E, shows the basic structure of the hydraulic model as well as the newly
established floodplain.
5.2 DIGITAL TERRAIN MODEL
A digital terrain model (DTM) was developed from the mapping data provided by the City. The DTM’s
purpose for this study was to allow computer software to extract channel centerlines and cross section
data. Using HEC-GeoRAS, the information contained in the mapping was extracted from the DTM and
imported into the HEC-RAS model.
Gray’s Creek Stormwater Master Plan
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Feburary 3, 2005 22
5.3 STREAM NETWORK
The stream network was derived from the hydrography information contained in the City data. In effect,
the stream network represents the channel centerline of the streams modeled in HEC-RAS.
5.4 CROSS-SECTION CUT-LINES
Placement and alignment of cross sections were determined by engineering judgment. In general, cross
sections were placed at a maximum spacing of 500 feet. Where appropriate, cross sections were placed at
closer intervals.
Additional cross sections were added at bridges and culverts. As prescribed in the HEC-RAS Hydraulic
Reference Manual3, four cross sections are associated with each hydraulic structure as follows:
• Cross Section 1 is placed approximately 4 times the opening width downstream of the
structure.
• Cross Section 2 is placed at the downstream face of the structure, just outside of the roadway
embankment.
• Cross Section 3 is placed at the upstream face of the structure, just outside of the roadway
embankment.
• Cross Section 4 is placed approximately 1 times the width of the opening upstream of
structure.
• Cross sections were cut from left to right looking in the downstream direction.
• Cross sections were cut so that each end was projected past the maximum extent of the 500-
year floodplain.
Cross section stations reflect the distance in feet from the downstream confluence.
5.5 MANNING’S “n” VALUES
Manning’s “n” values are an empirical coefficient used to relate surface conditions to friction losses in the
HEC-RAS model. Table 5-3 shows the relationship between land cover and Manning’s “n” value.
Most of the Manning’s “n” values used for this study were taken from the HEC-RAS Reference Manual.
It should be noted that some values were changed in the HEC-RAS model at the discretion of the
modelers.
3 HEC-RAS River Analysis System Hydraulic Reference Manual, United States Army Corps of Engineers
Hydrologic Engineering Center, Version 3.1, November 2002
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 23
Table 5-3
Manning’s Roughness Coefficients
Land Cover Manning's “n” Value
Urban residential (high/low density) 0.06
Urban commercial 0.05
Pavement 0.013
Floodplain; no brush 0.035
Floodplain; brush and trees 0.09
Dense trees 0.11 to 0.15
Light brush and trees 0.06
Grass, no brush 0.035
Crops 0.035
5.6 BRIDGES AND CULVERTS
For this study, seven (7) bridges and thirty-five (35) culverts were modeled in accordance with the
recommended procedures outlined in the HEC-RAS Hydraulic Reference Manual.
5.6.1 Cross Sections
Cross-sections 1 and 4 were located sufficiently upstream and downstream from the structure to represent
undisturbed flow in the channel. Cross-section 2 was located just downstream of the bridge face outside
of the roadway embankment. And finally, Cross-section 3 was located just upstream of the bridge face
beyond the limits of the roadway embankment.
5.6.2 Bridge Deck / Roadway
Bridge Deck/Roadway information was acquired from the topographic survey. Where survey data proved
to be insufficient, the data was supplemented with information from the base mapping.
5.6.3 Bridge Geometry
Bridge pier dimensions, embankment dimensions, decking width, and low chord elevation data, culvert
shape, and culvert size were manually input into the model using data from the survey notes. The deck
survey data was also required for each structure. Flow lengths between bridge cross-sections and
upstream and downstream stream valley cross-sections were determined using ArcView/GIS software.
Any additional information required for each bridge structure was estimated from photographs.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 24
5.6.4 Modeling Approach
Typically, the highest energy answer between Energy (Standard Step) and Momentum method was
selected for low flow calculations. For high flow calculations, the Pressure and/or Weir method was
used. As an exception, perched bridges and culverts were modeled using Energy methods. It should be
noted that this approach to bridge modeling was a general philosophy, but not a hard fast rule. The
results from each bridge were evaluated, and engineering judgment was used to obtain reasonable results.
5.6.5 Internal Bridge Cross Sections
As general rule, internal bridge cross sections were not modified. However, some revisions to internal
cross sections were necessary. Specifically, when Cross Sections 2 and 3 were not cut perpendicular to
the bridge face, the deck / roadway would be obscured by the cross-sections. With weir area (roadway)
obscured, HEC-RAS uses the cross section points as the weir. As a result, the calculated head on the weir
is often overestimated. Where this conservatism was of particular concern, the internal bridge cross
section was modified so that the all of the roadway points were used for weir flow.
5.7 INEFFECTIVE FLOW AREAS
Ineffective flow areas were determined using cross-section plots, contour information and photos.
Ineffective flow area examples include:
• Floodplain areas significantly below the top of the channel bank not hydraulically
connected to the channel downstream
• Floodplain areas within hydraulic shadow of roadway encroachments caused by
contraction and expansion of flow through bridge or culvert openings
• Floodplain areas within hydraulic shadow of other obstructions or irregularities in the
stream valley floodplain
5.8 EXPANSION AND CONTRACTION COEFFICIENTS
Expansion and contraction coefficients were estimated based on the ratio of effective flow area in the
floodplain occurring at stream valley cross-sections, roadway crossings, and dams. Table 5-4 lists typical
coefficients used in the model. For roadway crossings, expansion and contraction coefficients were
applied to the first two cross-sections upstream and one cross-section downstream of the structure.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 25
Table 5-4
Expansion and Contraction Coefficients
Transition Type Expansion Coefficient Contraction Coefficient
Gradual 0.3 0.01
Roadway Crossing 0.5 0.3
Abrupt 0.8 0.6
Data from HEC-RAS Hydraulic Manual
5.9 FLOW DATA
For this study, one-dimensional, steady state flows were used as a basis for hydraulic modeling. The peak
flow rates at points of interest in the watershed were estimated using the RUNOFF block described in
Section 4 of the report.
5.9.1 Profiles
Peak flow rates for the 10, 25, 50, 100-year return periods were used in the hydraulic analysis.
5.9.2 Flow Change Locations
At a minimum, HEC-RAS requires a flow rate to be established at the top of each reach. Theoretically,
flow rates increase continuously along a reach because of lateral inflow of runoff. While it would be
impossible to account for continuous increases in flow rate, it is appropriate to increase the flows at
particular cross section locations. These locations in the hydraulic model are reflective of hydrograph
calculations in the hydrologic model.
5.9.3 Boundary Conditions
In general, the starting water-surface elevation chosen for profile computations is based on normal depth,
unless known water-surface elevations are available. Coincident peak situations were considered, but this
assumption was not appropriate for most cases. 4
5.9.4 Flow Conditions
Floodplain information was calculated for two types of land uses: existing conditions and future surface
conditions.
4 Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix C: Guidance for Riverine Flooding
Analyses and Mapping, FEMA, April 2003
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 26
5.9.5 Detention / Storage
Because HEC-RAS is a steady state model, it cannot inherently model attenuation created by ponds,
lakes, and some highway embankments. Attenuated flow locations were modeled in XP-SWMM, and the
results were incorporated into HEC-RAS.
5.10 FLOODWAY ANALYSIS
Floodway limits were not determined as part of this study.
5.11 CALIBRATION
Due to the lack of any physical data (such as gage records) indicating high water marks for a determined
flow recurrence interval, true calibration (as defined in the scientific community) could not be performed.
Therefore, a comparative analysis was completed using several available sources of information.
5.11.1 Previous Studies
Several previous hydrologic and hydraulic studies have been performed in and around the City of
Jefferson including the FEMA FIS for Cole County and Jefferson City. These studies were reviewed and
pertinent information used.
5.11.2 Stormwater Questionnaire
A stormwater questionnaire, distributed to city residents for these stormwater studies, proved to be helpful
as well. Using GIS, the results of the questionnaires could be plotted on the mapping with the
preliminary floodplain. Results of the model generally corroborated the problem areas revealed by the
questionnaire. Clusters of reported flooding indicated major areas of concern caused by obstructions or
undersized channels. Scattered areas of reported flooding were more indicative of localized problems
such as downspouts and clogged drainage systems.
This phase of the study, however, examined portions of the watershed that are not within the city limits,
and hence, large areas were evaluated without the benefit of this questionnaire. The expertise of local
officials, critical evaluation of the models, and field investigations were substituted for this valuable tool.
5.11.3 City Staff and County Staff
City and County staff members were provided preliminary floodplains for review and comments. Staff
members tend to be the most knowledgeable of problems and know where the problem areas are even
before modeling is started.
5.12 QUALITY CONTROL
Once the HEC-RAS models were calibrated, a final examination of the input parameters was made using
the Check-RAS program distributed by FEMA (Version 1.1).
According to the documentation accompanying the program: Check-RAS is a program designed to check
the reasonableness of the data found in HEC-RAS. Geometric, steady flow, and output data are three
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 27
types of data used to verify that hydraulic estimates and assumptions made in the model appear to be
justified and are in accordance with the assumptions and limitations of the HEC-RAS program and
applicable FEMA requirements.
Check-RAS allows users to examine a variety of parameters from HEC-RAS data files, as well as
generate, view, and print reports, which include tables and messages. Using the HELP message database
can reference additional information about the messages identified.
Although the HEC-RAS program provides several messages, CHECK-RAS differs from HEC-RAS in
several ways. Only, CHECK-RAS does the following:
• Categorizes floodplain modeling into five distinct areas of checks
• Provides a summary table and messages for each area of check
• Assesses the suitability of roughness coefficients and transition loss coefficients
• Assesses the suitability of starting water-surface elevations
• Assesses bridges and culverts modeling
• Provides a detailed floodway analysis
• Compares important parameters among multiple profiles
• Proposes solutions through the use of the Help screens
Each Check-RAS warning was reviewed and evaluated for applicability. Necessary changes were made
to the HEC-RAS model.
5.13 HEC-RAS Models (Provided Digitally)
Plan Geometry Flow Description
Existing
Conditions
Grays Creek –
Existing Conditions
Existing Conditions
Flow
Grays.p01 Grays.g01 Grays.f03
Model represents flows for
existing land use conditions
and the existing conveyance
system.
Future Surface
Conditions
Grays Creek –
Existing Conditions
Future Surface
Conditions Flow
Grays.p02 Grays.g01 Grays.f05
Model represents flows for
future land use conditions
and the existing conveyance
system.
Improved
Conditions
Grays Creek – Capital
Improvements Plan
Future Surface
Conditions with CIPs
Grays.p03 Grays.g02 Grays.f06
Model represents flows for
future surface conditions and
improvements to the existing
conveyance system.
Appendices C and D of this report contain Standard Table 1 from the HEC-RAS program that lists some
of the important results from the model, including water-surface elevations for each cross section The
100-year water-surface elevations are also attached to the cross section attribute table in ArcMap.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 28
SECTION 6.0 - EXISTING SYSTEM PERFORMANCE
6.1 GRAYS CREEK
Grays Creek watershed (see Exhibit 1) is located along the north central boundary of Cole County
defined by the Missouri River. The area included approximately 24.3 square miles of drainage area,
encompassing portions of the City of Jefferson City and unincorporated areas of Cole County.
6.1.1 Land Use
The watershed’s land use is currently dominated by agricultural, wooded, brush and meadow areas.
These undeveloped areas make up 66 percent of the watershed. Of the remaining developed 34 percent,
medium density and low density residential dominate at 14 and 11 percent respectively. The existing
conditions land use breakdown is provided in Table 6-1 and is shown in Exhibit 4.
Future surface conditions predict a drop in undeveloped area to 35 percent. This undeveloped area will
be classified as medium density residential for modeling purposes. Flood zones and areas of extreme
slope will be left undeveloped and modeled as open space or wooded areas respectively. Additionally,
there will be a large increase in commercial and low density residential areas. The future surface
condition breakdown is provided in Table 6-1 and is shown in Exhibit 5.
Table 6-1
Land Use in Grays Creek
Land Use Designation
Total
Area
(acres)
Percent of
Watershe
d Land Use Designation
Total
Area
(acres)
Percent of
Watershe
d
Existing (observed from aerial photography) Future Surface
Agriculture 4100 26.3%Commercial 1401 8.3%
Brush 1350 8.6%High Density Residential 77 0.5%
Commercial 332 2.1%Impervious Area 359 2.1%
High Density Residential 34 0.2%Industrial 251 1.5%
Impervious Area 371 2.4%Low Density Residential 2730 16.2%
Industrial 265 1.7%Meadow 201 1.2%
Low Density Residential 1815 11.6%Medium Density Residential 2494 14.8%
Meadow 1212 7.8%Parks 891 5.3%
Medium Density
Residential
2249 14.4%Public 163 1.0%
Park 219 1.4%Flood 972 5.8%
Public 33 0.2%Steep 1285 7.6%
Wood 3639 23.3%Undeveloped 6042 35.7%
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 29
6.1.2 Hydrologic Summary
Below is a summary of the major hydrologic characteristics of the watershed.
Table 6-2
Hydrologic Characteristics of Grays Creek
Total Drainage Area 15541 acres
Total Drainage Area 24.3 sq. mi.
Number of Subareas Modeled 338
Average Subarea Size 45.98 acres
Existing Conditions Future Surface
Conditions
SCS Composite Curve Number 74 80
10-Peak Flow Rate 3367 cfs 4368 cfs
10-Peak Unit Discharge 0.22 cfs/acre 0.28 cfs/acre
25-Peak Flow Rate 4321 cfs 5533 cfs
25-Peak Unit Discharge 0.29 cfs/acre 0.36 cfs/acre
50-year Peak Flow Rate 5087 cfs 6458 cfs
50-Peak Unit Discharge 0.33 cfs/acre 0.42 cfs/acre
100-year Peak Flow Rate 6265 cfs 7834 cfs
100-Peak Unit Discharge 0.40 cfs/acre 0.50 cfs/acre
6.1.3 Existing Drainage System
Only a small portion of the Grays Creek watershed is located inside the municipal boundaries of the City
of Jefferson, however detailed study of the stormwater system extended into regions of Cole County that
were identified as possible areas of annexation. Within the detailed study area there are 43 hydraulic
structures modeled in HEC-RAS and 338 'links' (culverts or pipe runs) modeled in XP-SWMM. These
links comprise about 6.2 miles of stormwater conduits 24 inches and larger. The link names do not
correspond exactly with the surveyed conduit names because of modeling constraints, so the GIS and XP-
SWMM files furnished to the City and County must sometimes be used to find the locations and statistics
associated with each.
6.2 EVALUATION CRITERIA
The design criteria for system performance currently observed by the City of Jefferson is based on land
use or zoning. These criteria have been taken from the Storm Drainage Design Manual5 and are as
follows:
5 Storm Drainage Design Manual, Public Works Department, City of Jefferson, Missouri, 1985.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 30
Table 6-3 – Existing Design Criteria for Enclosed Systems and Culverts
Land Use / Zoning Designation
Return Frequency the System Must
Accommodate
Residential 10 yr
Commercial 25 yr
Industrial 25 yr
Government and Institutional 25 yr
Floodway in 100-yr Floodplain 100 yr
Table 6-4 – Existing Design Criteria for Open Channels
Land Use / Zoning Designation
Return Frequency the System Must
Accommodate
Residential 25 yr
Commercial 25 yr
Industrial 25 yr
Government and Institutional 25 yr
All Others 10 yr
Floodway in 100-yr Floodplain 100 yr
For various reasons these design criteria cannot be the sole criteria for evaluating the system. Much of
this study examines older elements of the stormwater conveyance system as well as portions of it that are
outside the city limits and were not subject to City regulation when built. In addition, these are design
criteria, meant to be applied to new construction. Hence evaluating the performance of the system is
more complicated than simply flagging elements that do not pass the runoff from the applicable event.
6.3 DRAINAGE SYSTEM PERFORMANCE
The drainage system was evaluated as two separate parts: enclosed system and open channels. An
enclosed system was defined as multiple, connected pipes. As such, all of the elements considered as
enclosed systems were in the upper reaches of the watersheds and were modeled in XP-SWMM. These
enclosed systems then discharged into open channels and were modeled in HEC-RAS. This combination
of modeling techniques was used because XP-SWMM models enclosed systems better than HEC-RAS,
and HEC-RAS better represents extended open channel systems. This convention was driven by the
study design criteria and the models used, and is discussed earlier in this report.
6.3.1 Major Structure Modeling Results from HEC-RAS
Table 6-5 summarizes the major structure analysis. The table provides a brief description of the
structure, its length and a listing of the hydrologic conditions examined. “Existing” indicates the flow at
each structure with the current ground covers and land uses observed in the watershed. “Future” is the
future flow predicted to occur. The table then shows the depth of overtopping predicted by the model for
three events of interest. These structures can be located in Exhibit 1 and the results can be examined
more closely in the HEC-RAS model digital files furnished with this report.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 31
The City's design criteria requires no overtopping in the 10-year event for residential areas, and none in
the 25-year event for commercial or industrial areas. These depths are shown in gray cells in the table.
Table 6-5
HEC-RAS Analysis of Major Structures
10-yr Event 25-yr Event 100-yr Event
Struct
. No.
City or
County
Description
(number of
bbls, ft,
type)
Leng
th
(ft)
Hydrologi
c
Condition
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
Existing 909 No 1166 No 1619 No GT-
001 City, arterial 2-9.0x12.0
RCB's 88 Future 993 No 1208 No 1668 No
Existing 537 1 844 1.2 973 1.9 GT-
002
City,
residential
2-6.25x4.9
RCB's 66 Future 553 1 886 1.3 1018 1.9
Existing 632 0.2 794 1 1119 1.7 GT-
003
City,
residential
10.0x6.0
RCB 60 Future 670 0.5 827 1.1 1141 1.8
Existing 514 No 629 No 870 0.6 GT-
004
City,
residential
2-6.5x4.5
CMP 70 Future 521 No 634 No 866 0.6
Existing 403 No 480 No 644 No GT-
005
City,
commercial
10.0x6.75
CMP 80 Future 410 No 486 No 695 0.2
Existing 1615 No 2070 No 2944 No GT-
006
County,
commercial
3-12.0x10.0
RCB's 99 Future 2431 No 3019 No 4140 0.2
Existing 2646 1.7 3376 2 4781 2.4 GT-
007 City Park 2-2.7x9.0
RCB's 31 Future 3754 2.1 4671 2.4 6397 2.8
Existing 396 1.6 469 1.8 615 2.2 GT-
008
County,
commercial Bridge 13.3 Future 494 1.9 571 2.1 718 2.5
Existing 1270 1.8 1612 3.2 2271 4.4 GT-
009
County,
commercial Bridge 14 Future 2024 3.4 2497 5.1 3397 6.7
Existing 979 No 1217 No 1673 No GT-
010
County,
commercial
2-12.0x12.0
RCB's 62 Future 1216 No 1500 No 2052 No
Existing 315 No 387 No 525 No GT-
011
Country,
arterial
12.0x6.0
RCB 29 Future 432 No 524 No 696 0.1
Existing 842 No 1112 No 1725 No GT-
015
County,
arterial
2-12.0x8.0
RCB's 55 Future 1066 No 1427 No 2146 0.5
Existing 1200 No 1488 No 2009 No GT-
017
County,
residential Bridge 15 Future 1484 No 1816 No 2424 No
Existing 824 No 1015 15.6 1391 1.6 GT-
018
County,
residential Bridge 22 Future 1074 1.3 1301 1.5 1740 1.8
Existing 891 0.6 1118 0.9 1557 1.3 GT-
019
County,
residential
12.0x8.0
RCB 29 Future 1048 0.8 1312 1.1 1844 1.5
Existing 1027 No 1276 No 1744 0.9 GT-
020
County,
residential
2-10.5x9.0
RCB's 45 Future 1672 0.8 2051 1.1 2767 1.7
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 32
Table 6-5
HEC-RAS Analysis of Major Structures
10-yr Event 25-yr Event 100-yr Event
Struct
. No.
City or
County
Description
(number of
bbls, ft,
type)
Leng
th
(ft)
Hydrologi
c
Condition
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
Existing 396 No 489 No 667 0.3 GT-
021
County,
residential
12.0x6.0
RCB 40 Future 536 No 650 0.2 866 0.6
Existing 3421 No 4392 No 6374 No GT-
022
County,
arterial Bridge 41 Future 4452 No 5645 No 7990 No
Existing 3367 No 4321 No 6265 No GT-
023
UPRR
bridge Bridge 30 Future 4368 No 5533 No 7834 No
Existing 3690 No 4731 No 6836 No GT-
028
UPRR
bridge Bridge 15.4 Future 4844 No 6109 No 8686 No
Existing 405 No 500 No 681 No GT-
032
County,
highway 8.0x6.0 RCB 260 Future 501 No 612 No 820 No
Existing 208 No 256 No 349 No GT-
033
County,
highway 7.0x6.0 RCB 307 Future 273 No 332 No 444 No
Existing 212 No 261 No 356 No GT-
034
County,
highway 7.0x6.0 RCB 255 Future 284 No 346 No 462 No
Existing 311 No 383 No 522 No GT-
035
County,
highway 10.06.0 RCB 300 Future 409 No 497 No 665 No
Existing 329 0.8 409 1 562 1.4 GT-
036
County,
residential 2-5.0 CMP's 60 R&R — — — — — —
Existing 264 1.3 327 1.5 449 1.9 GT-
037
County,
residential 8.0x4.0 RCB 20 R&R — — — — — —
Existing 264 1.3 327 1.5 449 1.8 GT-
038
County,
residential
5.0x3.5
CMP 21 R&R — — — — — —
Existing 585 No 723 No 988 No GT-
044
County,
highway
12.0x8.0
RCB 279 Future 1098 No 1324 No 1741 No
Existing 272 No 340 No 466 No GT-
045
County,
highway
13.0x5.0
RCB 264 Future 351 No 432 No 585 No
Existing 221 No 309 No 481 No GT-
046
County,
highway
10.0x6.0
RCB 394 Future 275 No 370 No 526 No
Existing 172 0.4 213 0.5 291 0.6 GT-
049
County,
residential 1.67 CMP 110 Future 199 0.5 244 0.5 331 0.6
Existing 506 2.5 615 2.9 831 3.4 GT-
050
County,
residential 1.0 SP 18 Future 610 2.8 749 3.2 1005 3.8
Existing 168 No 205 No 281 No GR-
53022
City,
residential
10.0x8.0
CMP 126 Future 168 No 205 No 281 No
GR-City, 6.67x4.9 122 Existing 142 No 178 0.3 244 0.7
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 33
Table 6-5
HEC-RAS Analysis of Major Structures
10-yr Event 25-yr Event 100-yr Event
Struct
. No.
City or
County
Description
(number of
bbls, ft,
type)
Leng
th
(ft)
Hydrologi
c
Condition
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
Flow
(cfs)
Overto
p (ft)
53024 residential CMP Future 142 No 178 3 244 0.7
Existing 301 0.2 373 0.7 543 1.3 GR-
53171
City,
residential 6.17 CMP 117 Future 419 0.9 481 1.1 638 1.5
Existing 319 0.6 454 0.8 697 1.1 GR-
55060 City Park 6.0x3.6
CMP 40 Future 852 1.3 1027 1.3 1374 1.6
Existing 238 1.2 325 1.4 454 1.7 GR-
55071
City, park
maintenance 4.0 CMP 22.8 Future 305 1.4 396 1.6 537 1.8
Existing 238 0.9 325 1.2 454 1.4 GR-
55073
City, park
maintenance
5.5x4.0
CMP 29 Future 305 1.1 396 1.3 537 1.6
Existing 367 No 452 No 612 0.5 GR-
55108
County,
commercial 8.0x6.0 RCB 41 Future 388 No 477 No 645 0.5
Existing 506 1.6 615 1.8 813 2.2 GR-
55198
County,
residential
7.83x5.4
RCP 51 Future 610 1.8 749 2.1 1005 2.4
Existing 287 0.8 356 0.8 488 1 GR-
55203
County,
residential 1.0 CMP 53 Future 294 0.8 364 0.9 499 1
Existing 490 0.5 595 0.8 804 1.1 GR-
55213
County,
residential
3-9.0x6.5
CMP 27 R&R — — 727 — — —
Existing 394 1.6 492 1.9 743 2.5 GR-
55264
City, park
maintenance
3-3.0x2.0
CMP'S 22 Future 484 1.9 650 2.3 930 2.9
As can be seen in the modeling results above, a number of structures in Grays Creek do not currently
meet the City's design standards. The shaded areas of Table 6-5 indicate those structures. All of these
have been discussed with the City or County, and most are addressed in the Recommendations section of
this report.
The results of the analysis suggest that the following structures lack sufficient capacity to current design
standards:
• GT-002 on the east tributary to Grays under Belair Drive at the intersection of Ker-Mac and
Belair Drive.
• GT-003 on the east tributary to Grays under Belmont Drive just south of Kar-Mac.
• GT-007 located at the south end of Binder Lake at Rainbow Drive.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 34
• GT-008 located on a tributary to Grays Creek under a private drive off of Ravenwood Drive
400' south of US 50 Business.
• GT-009 located on a tributary to Grays Creek and goes under Ravenwood Drive 180' south of
US 50 Business.
• GT-019 on a tributary to Grays Creek under Schumate Chapel Road about 3/4 north and west
of Flanders Road.
• GT-049 is a pond spillway located at the northernmost end of Schumate Chapel Road, 2050'
past GT-019.
• GT-050 is on a tributary to Grays Creek and goes under Flanders Road 300' west of
Schumate Chapel Road.
• GR-53171 is on a tributary to Grays Creek under Catalina Drive 270' west of Del Mar Drive.
• GR-55071 is on a tributary to Grays Creek and is located 1400' south of Henwick Lane on the
maintenance road on the north and east side of Binder Lake.
• GR-55073 is located on a tributary to Grays Creek about 1030' south of Henwick Land on the
maintenance road on the north and east side of Binder Lake.
• GR-55198 is located on a private drive 160' west of Flander's intersection with Schumate
Chapel Road.
• GR-55203 is a pond outlet that goes under Flanders Road and is located about 1000' west of
Schumate Chapel Road.
• GR-55264 is located on a tributary to Grays Creek on the east side maintenace road on the
north end of Binder Lake about 100' south of Henwick Lane.
The analysis also indicates that the following structures may become inadequate as the watershed
becomes urbanized:
• GT-018 is on a tributary to Grays Creek 450' west of Deerfield Place on Sturbridge Drive.
• GT-020 is located on a tributary to Grays Creek at Apache Trail Road 660' south of US 50
Business.
6.3.2 Minor System Results From XP-SWMM
The performance of the pipes that make up the minor system are reported in Appendix B and in the
digital GIS and XP-SWMM files furnished with this report. In this appendix table the peak flow routed
through each pipe is reported with the calculated design flow of that pipe and the occurrence and depth of
overtopping.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 35
The depth of overtopping was determined by modeling an aboveground channel above each pipe so that
runoff was allowed to travel downstream when pipe capacities were exceeded. Four types of overland
channels were modeled: street and gutter flow; flow over a sag in the road above a culvert; flow between
houses through a side yard swale; and the flow through backyard swales. The overtopping elevation, the
slope, and the sides of each of these trapezoidal channels was estimated for each different type and
location. Due to the accuracy and resolution of elevations and topographic data these overland channels
and depths only approximate actual conditions, but are still useful measures of performance.
Table 6-6 summarizes the performance of the 338 links, or pipes, analyzed in Grays Creek.
Table 6-6
Enclosed System Performance Results
Average Flow (cfs)
Existing Ultimate Increase
10-year 58 69 19%
25-year 72 85 17%
100-year 102 117 15%
Average overtopping
depth
Number of links analyzed338 —
Number of links that fail to pass the
10-year flow, existing conditions 74 0.37 ft
Number of links that fail to pass the
10-year flow, future conditions 94 0.39 ft
It can be seen that 21% of the links fail to pass the existing 10-year flow, and with the future scenario
28% will not pass the ultimate flow without overtopping. It should be noted that overtopping in the
model does not always mean overtopping in the actual system. Nor does it mean that the design was
flawed, or that there is necessarily a problem at this location. The model does not take into account all of
the factors that affect system capacity, and these other factors must be considered when analyzing the
system. The recommendations made in the next section factor in complaints, staff feedback, special
conditions, and the age and condition of the system.
One item of note is the potential for increases in the runoff. The runoff rates modeled indicate an average
increase of about 17% from existing to future surface conditions with increases of over 100% some areas.
These increases are a problem common to most watersheds regardless of location. Urbanization alters
soil properties, adds impervious surface, and increases the amount of runoff. This is not only a
volumetric increase, but an increase in energy as well. This increase in energy (more water flowing at a
faster rate) often leads to channel degradation; namely in the form of erosion and soil loss.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 36
SECTION 7.0 - RECOMMENDATIONS
7.1 INTRODUCTION
The recommendations made in this section are generated from a combination of model results,
observations (Engineer, City, County, and Surveyor), and reports from both City and County officials and
citizen questionnaires.
Most of these recommendations are structural and are intended to fix problems that already have some
urgency with respect to structure flooding, erosion, or street flooding. Some of these have arisen because
of the aging infrastructure and associated problems. There are other issues that exist because of the
increasing urbanization in the watershed, both from increased runoff and floodplain encroachment.
Finally, there are low water crossings examined in this section that are generally privately owned and are
not the responsibility of the City or County to modernize. These low water crossings are problematic
because once urbanization reaches a certain point it is inadvisable to have neighborhoods that can be
isolated from emergency services during storms or that present the hazard of powerful stormwater flow
over roads. These are presented here because some local policies, both in the City of Jefferson and
elsewhere, require that a certain storm event (the 10-year or 25-year storm in the City of Jefferson) should
be handled completely within the engineered conveyance system.
7.2 CITY AND COUNTY RECOMMENDATIONS
The Grays Creek watershed was divided for the purposes of this study into 1.) a region that within the
City of Jefferson limits, 2.) a region that is outside the City, inside Cole County, and inside a proposed
annexation area, 3.) those parts of the watershed that are in Cole County but outside of the City and
outside of the proposed annexation boundaries.
Detailed modeling was done for all of the conveyance systems in the first two areas if the pipes were 24
inches in diameter or larger (the major systems). Hence, recommendations are only made for the parts of
the watershed that are within the City, or within the area of proposed annexation and are part of the major
system, or that were suggested by the City or County. These recommendations are divided into
recommendations for the City, and recommendations for the County.
7.3 SURVEYOR'S OBSERVATIONS
The need for maintenance of each surveyed structure was noted by the Surveyor. A numerical rating of 1
(no maintenance), 2 (routine maintenance), or 3 (critical maintenance) was given to each structure.
Comments were appended to about half of the structures (although many comments concerned
connections or structural details) in the GIS database, and one or more digital photographs are available
for examination for each structure. A list of manhole structures which were rated 2 or 3 is included in
Appendix E, and the complete file is available in the digital files included with this report.
It should be noted that because the Surveyors examined only portions of the system visible from
aboveground, and because their ratings may not agree with the ratings of an experienced maintaince
person, then the Surveyors' judgment of "no maintenance" may not be meaningful in all cases.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 37
7.4 EVALUATION OF PRIORITIES
7.4.1 Methodology
The improvements suggested as part of this study will be discussed and ranked based on the estimated
level of service, potential flooding, frequency of flooding and engineering judgment. Rather than a
numerical ranking suggesting an order for which improvements should be made, a ranking of high,
medium, low, or future priority will be used to prioritize the projects. This will provide the City and
County the flexibility to evaluate and fund projects as the need arises.
7.4.2 Priority Definitions
7.4.2.1 HIGH Priority
A HIGH priority is assigned to those areas meeting one of the following:
• Habitable buildings are located in the floodplain and flooding is frequent.
• Flooding could pose an immediate threat to public safety.
• Opportunities for proactive, non-structural measures will be lost if not initiated
expeditiously.
7.4.2.2 MEDIUM Priority
A MEDIUM priority is assigned to those areas meeting all of the following criteria:
• There is a flooding problem that does not involve a habitable building located in
the floodplain.
• There is a flooding problem that does not pose an immediate threat to public
safety.
• The required level of service for a bridge or culvert on a major roadway is
expected to be exceeded.
7.4.2.3 LOW Priority
A LOW priority is assigned to those areas meeting either of the following criteria:
• The required level of service for a bridge or culvert on a minor roadway is
expected to be exceeded.
• A stormwater issue exists due to erosion or yard flooding.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 38
7.4.2.4 FUTURE Priority
A FUTURE priority is assigned to the areas meeting one all of the following:
• Modeling indicates no flooding problem for existing conditions.
• Modeling indicates a possible problem (generally a decrease in the level of
service) as the upstream tributary area becomes urbanized.
• A low water crossing exists in an area subject to increasing urbanization and its
eventual replacement should be considered.
7.5 Cost Opinions for Projects
In the following recommendations a cost opinion is included with most projects. An attempt was made to
present realistic costs in 2005 dollars. The costs of concrete and steel have both risen considerably in the
last year, and it is impossible to predict what they will happen to these prices in the future. The costs of
RCP and structural concrete were estimated generously, and to arrive at these numbers, it was assumed
that demolition of existing structures would be required, that additional excavation and hauling, bedding,
backfill, compaction, and pavement R&R would occur. Judgements were made for traffic control and
utility relocation, and a healthy contingency amount was added to each estimate.
7.6 PROJECT 1 – Ker-Mac Street (City Project)
7.6.1 Description
There are multiple reports of home, yard, and street flooding on both sides of this major Grays Creek
tributary in the vicinity of Ker-Mac St. The modeling shows six homes partially within the 100-year
floodplain at this location, the culverts under Belair and Belmont (GC002 and GC003) are overtopped by
1.8 and 1.7 feet respectively in the 100-year storm, and the floodwaters are up to 2.5 feet deep on the
north side of Ker-Mac.
The lack of inlets on Belmont Dr. contributes to the problems in this area such that heavy rain events will
float trash barrels downstream.
7.6.2 Recommended Improvement
The construction of a dry detention basin (Figure 7-1) between Norris Dr. and Belmont Dr. is
recommended, as well as an upgrade for the culverts under Norris Dr. This project would require some
excavation at the dam site but most of the excavated earth would be used in the construction of the dam.
When this improvement is implemented the collection issues on Belmont Dr. could be addressed as part
of the project.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 39
7.6.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Ker-Mac Detention unit cost item cost
Dam, overflow, etc.
3' RCP 80' 80 LF $560.00 $44,800
3.2 ac seeding in the basin 3.2 AC $2,500.00 $8,000
seeding below basin 0.5 AC $2,500.00 $1,250
10,000 CY to scoop out basin 10,000 CY $15.00 $150,000
6,000 CY compacted into dam 6,000 CY $19.00 $114,000
4,000 CY disposal 4,000 CY $10.00 $40,000
101 CY structural concrete (dissipator) 101 CY $750.00 $75,750
Flatwork for emerg spillway 4,000 SF $5.00 $20,000
Access road, 1600' x 12' 19,200 SF $2.62 $50,304
Acquisition of ROW 5.00 AC $5,000.00 $25,000
Clearing 3.2 AC $2,000.00 $6,400
at Norris (R&R culvert)
remove existing culvert 2 LS $1,200.00 $2,400
R&R pavement 100 SY $53 $5,300
RCB: 2-10'x7'x60' 120 LF $1,055.00 $126,600
Subtotal $669,804
Erosion Control 2 % $13,396
Mobilization / Demobilization 5 % $33,490
Traffic Control 2 % $13,396
Utility Relocation 2 % $13,396
Subtotal $743,482
Contingency 25 % $185,871
Construction Total $929,353
Engineering, Surveying, Geotechnical, Permitting
& Construction Management
50 %
$464,677
PROJECT TOTAL $1,394,000
7.6.4 Priority
A HIGH priority is assigned to this project because of the depth of street flooding and the hazard to
occupied dwellings.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 40
7.7 PROJECT 2 – Marilyn and Lowell Drives (City Project)
7.7.1 Description
Street flooding and minor structure flooding at this location occur on a regular basis. Lowell Drive
descends at an 8% grade to this intersection, and the existing drainage system is inadequate to keep flows
out of the street and out of the homes at the bottom of the hill. This problem was identified by complaints,
not modeling, and is included at the request of the City.
7.7.2 Recommended Improvement
An extension of the existing system with new inlets and tributary piping is recommended. Five inlets and
appoximately 260 feet of 24-inch and 15-inch pipe should be installed at of this intersection (Figure 7-2).
7.7.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Marilyn & Lowell
18" RCP 238 LF $234 $55,692
24" RCP 21 LF $330 $6,930
curb inlets 6 ea $2,425 $14,550
headwall 1 ea $5,090 $5,090
Subtotal $82,262
Mobilization / Demobilization 5 % $4,113
Traffic Control 2 % $1,645
Utility Relocation 2 % $1,645
Subtotal $89,666
Contingency 25 % $22,416
Construction Total $112,082
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $56,041
PROJECT TOTAL $168,000
7.7.4 Priority
A MEDIUM priority is assigned to this project because of the minor structure flooding reported on both
Marilyn Drive and Lowell Drive.
7.8 PROJECT 3 – Meier Drive (City Project)
7.8.1 Description
There are several problems associated with this area (Figure 7-3). There has been ponding above Crest
Dr. that caused structure damage. There is no inlet structure at the beginning of the pipe run that begins
between Crest and Meier and this appears to be the source of an overland flow problem. There are leaky
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 41
pipes or junctions in the front yards along Meier. The current arrangement of parallel pipes and their inlet
structures appears to be flawed, and the upstream structures under Crest are failing.
7.8.2 Recommended Improvement
It is recommended that the culvert under Crest Dr. be replaced with new pipes and additional inlets. The
parallel pipes beginning in the back yards between Meier and Crest should be replaced with new pipes and
inlets, including a headwall structure and grading at the top of the pipe run. This replacement project may
require new pipes all the way down to the outfall below Castle Dr., depending on the results of further
investigation.
7.8.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Meier Drive
42" RCP 830 LF $720 $597,600
15" RCP 212 LF $229 $48,548
headwalls 2 ea $8,800 $17,600
outlet lining 40 SY $50 $2,000
curb inlets 8 ea $2,425 $19,400
Subtotal $685,148
Erosion Control 2 % $13,703
Mobilization / Demobilization 5 % $34,257
Traffic Control 2 % $13,703
Utility Relocation 2 % $13,703
Subtotal $760,514
Contingency 25 % $190,129
Construction Total $950,643
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $475,321
PROJECT TOTAL $1,426,000
7.8.4 Priority
This project is assigned a HIGH priority due to structure flooding.
7.9 PROJECT 4 – Sue Drive (City Project)
7.9.1 Description
Frequent street flooding is reported at the east end of Sue Dr. (Figure 7-4). The model indicates a small
undercapacity in the existing pipes at the bottom of Stamford and Geneva Streets for the 10-year storm,
but inspection revealed that all of the inlets to the system were located in sumps, and that some of them
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 42
were blocked by debris. Because the model did not take these inefficiencies into account, the modest
undercapacity in the model understates the real problem and allows more street flow than indicated.
There are two minor systems at the bottom of Earl Lee Dr. and at the turn in Sue Dr. that are not modeled.
The second of these is located at the sump for this whole area and goes underneath the attached garage at
702 Leonard Drive. This last small system is undersized for the expected flow plus the rejected upstream
water that flows down Sue Dr., which then ponds at the bottom of Sue.
The 72-inch corrugated metal culvert under Twin Hills Rd. has deteriorated and needs to be replaced, and
there are complaints about standing water at Twin Hills' intersection with Sue Dr. after storm events.
7.9.2 Recommended Improvement
Modern curb inlets should be placed uphill from each intersection at Ihler, Stamford, Geneva and Earl
Lee Streets; at the east end of Sue Dr. the sump inlets should be replaced; the pipe under the house at 702
Leonard should be replaced with a 30 inch diameter RCP through the side yard with updated inlets and
grading.
The Twin Hills CMP culvert should be replaced with a smaller RCP culvert, and curb inlets and
associated piping should be built from the nearby intersection with Sue Dr. to the channel. The
intersection should be reprofiled when these new inlets are installed.
7.9.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Sue Drive
30" RCP 126 LF $480 $60,480
15" RCP 736 LF $229 $168,544
curb inlets 9 ea $2,425 $21,825
area inlet 1 ea $2,425 $2,425
Twin Hills Road
48" RCP to replace 72" CMP 97 LF $1,025 $99,425
fill and grading for large cut @Twin Hills 2,200 CY $19 $41,800
15" RCP 256 LF $228 $58,368
curb inlets 5 ea $2,425 $12,125
fill and grading at intersection 400 CY $19 $7,600
R&R pavement thru intersection @ Sue Dr. 1,212 SY $53 $64,236
Subtotal $536,828
Mobilization / Demobilization 2.5 % $13,421
Traffic Control 2 % $10,737
Utility Relocation 5 % $26,841
Subtotal $587,827
Contingency 25 % $146,957
Construction Total $734,783
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $367,392
PROJECT TOTAL $1,102,000
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City of Jefferson, Missouri
Feburary 3, 2005 43
7.9.4 Priority
A HIGH priority is assigned to this project because of the street flooding in Sue Drive.
7.10 PROJECT 5 – Air View Drive and Royal Air Drive (City Project)
7.10.1 Description
Street flooding and yard flooding were reported, and yard flooding was observed in this neighborhood.
There is a shallow and sometimes exposed pipe run through several backyards, there are pipes that were
added on without proper engineering. There is a small, improvised backyard concrete channel, and a lack
of inlets. (Figure 7-5)
Most of this small system was not modeled (due to size), but the pipes under Air View and Southern Air
surcharge in the model in the 10-year storm event.
7.10.2 Recommended Improvements
It is recommended that a new enclosed storm sewer system should be constructed from the corner of Belair
Dr. and Orchard Ln. to Southern Air and Air View Drives.
7.10.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Air View & Royal Air
15" RCP 433 LF $229 $99,157
24" RCP 570 LF $330 $188,100
30" RCP 358 LF $480 $171,840
36" RCP 129 LF $560 $72,240
curb inlets 15 ea $2,425 $36,375
area inlet 1 ea $2,425 $2,425
Subtotal $570,137
Mobilization / Demobilization 5 % $28,507
Traffic Control 2 % $11,403
Utility Relocation 2 % $11,403
Subtotal $621,449
Contingency 25 % $155,362
Construction Total $776,812
Engineering, Surveying,
Geotechnical, Permitting &
Construction Management
50 % $388,406
PROJECT TOTAL $1,165,000
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 44
7.10.4 Priority
This project is assigned a MEDIUM priority because of street flooding.
7.11 PROJECT 6 – Bolton Drive and Douglas Drive (City Project)
7.11.1 Description
Frequent backyard flooding, erosion, and structure flooding have been reported between Bolton Dr. and
Douglas Dr. This problem area was not verified in the modeling because it was not modeled in detail. The
City has requested that this project be included because of observed problems. Figure 7-6
7.11.2 Recommended Improvements
This area should be studied in detail in order to find satisfactory solutions. The steeper parts of the swale
may require riprap or concrete lining, but most of the problem areas should be correctable with minimal
grading and erosion control blankets or seeding. The structures under Davis St. should be considered for
replacement when this project is budgeted because of the age of the system in this area.
7.11.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Bolton & Douglas
Erosion control 930 LF $54 $50,220
24" RCP 74 LF $330 $24,420
inlet structures 2 LS $2,425 $4,850
headwall 1 LS $5,090 $5,090
outlet lining 30 SY $50 $1,500
Subtotal $86,080
Mobilization / Demobilization 5 % $4,304
Traffic Control 2 % $1,722
Utility Relocation 2 % $1,722
Subtotal $93,827
Contingency 25 % $23,457
Construction Total $117,284
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $58,642
PROJECT TOTAL $176,000
7.11.4 Priority
This project is given a MEDIUM priority because of reports of structure flooding problems.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 45
7.12 PROJECT 7 – Boonville Road (City Project)
7.12.1 Description
There are complaints of street flooding, yard flooding and erosion at this sag on Boonville Road (Figure
7-7). The problem appears to be caused by a lack of curb inlets, however, there is also a report of an
obstructed pipe that goes under the house at 207 Boonville Rd. The street flooding is not corroborated by
the computer simulations because detailed modeling was not done here; this project was included at the
request of the City.
7.12.2 Recommended Improvements
If further investigation verifies these problems, new curb inlets should be installed on both sides of
Boonville Rd. and the downstream pipe should be relocated. Remedial grading and erosion control may
be required, and the receiving pipe run may need an inlet structure.
7.12.3 Cost Opinion
Description Quan. Unit
Unit
Price Total Cost
Boonville Road
erosion control 184 LF $54 $9,936
18" RCP 141 LF $234 $32,994
15" RCP 215 LF $229 $49,235
inlet structures 6 ea $5,090 $30,540
Subtotal $122,705
Mobilization / Demobilization 5 % $6,135
Traffic Control 5 % $6,135
Utility Relocation 2 % $2,454
Subtotal $137,430
Contingency 25 % $34,357
Construction Total $171,787
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $85,894
PROJECT TOTAL $258,000
7.12.4 Priority
This project is given a MEDIUM priority because of level of service issues.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 46
7.13 PROJECT 8 - Binder Park (City Project)
7.13.1 Description
Some of the roads around Binder Lake are overtopped by significant amounts. Modeling indicates that the
10-year event overtops the RCB at GC007 by 20 inches, and the culverts at GR55060 by 7 inches and
GR55060 by 6 inches. On the east side service road the culverts are overtopped by 14 inches at GR55071,
11 inches at GR55073, and 19 inches at GR55264. See Figure 7-8.
7.13.2 Recommended Improvement
Low water crossings present a hazard to public safety and with increasing urbanization should be
considered for replacement. The culverts at GC007 and GR55060 can be replaced with bridges, and the
other four culverts can be enlarged as shown in the Cost Opinion. These improvements will allow the 10-
year flows to be contained within the enclosed system.
7.13.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Binder Park
S. Binder bridge at GT-007
40' x 28' bridge, piers, etc. 1120 SF $75 $84,000
pavement R&R 133 SY $53 $7,067
finish grading 444 SY $4 $1,778
seeding 0.3 acre $2,500 $861
approaches compact & fill 200 CY $19 $3,800
W. Binder bridge at GT-55060
44' x 20' bridge, piers, etc. 880 SF $75 $66,000
pavement R&R 611 SY $53 $32,389
finish grading 733 SY $4 $2,933
seeding 0.5 acre $2,500 $1,157
approaches compact & fill 1300 CY $19 $24,700
Culvert replacement at GT-55071
4x4'x23' RCP 92 LF $1,025 $94,300
pavement R&R 13 SY $53 $707
Culvert replacement at GT-55073
3-5.5'x4' (Ell) x 29' RCP 87 LF $1,500 $130,500
pavement R&R 33 SY $53 $1,767
Culvert replacement at GT-55264
6-3.5'x4.65'x22' RCPA 132 LF $1,025 $135,300
pavement R&R 58 SY $53 $3,062
Culvert replacement at GT-55056
5'x46' RCP 46 LF $1,500 $69,000
pavement R&R 178 SY $53 $9,422
outlet riprap 100 SY $50 $5,000
Subtotal $673,742
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 47
Mobilization / Demobilization 5 % $33,687
Traffic Control 2 % $13,475
Utility Relocation 2 % $13,475
Subtotal $734,379
Contingency 25 % $183,595
Construction Total $917,974
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $458,987
PROJECT TOTAL $1,377,000
7.13.4 Priority
This project is assigned a FUTURE priority because these sites are low water crossings and gated on the
north and west sides of the park.
7.14 PROJECT 9 - Del Mar Drive (City Project)
7.14.1 Description
Modeling shows that the corrugated metal pipe arch culvert under Catalina Dr., GR53171, is overtopped
by 14 inches in the 100-year existing conditions event (Figure 7-9). As a result of backwater and this
overtopping, it is predicted that several houses will be in the floodplain with depths ranging from several
inches to about three feet. However, there is some uncertainty in the topographic maps because of the
grading done after these maps were prepared.
7.14.2 Recommendation
Because of the lack of a history of road overtopping or flooding, the uncertainty of the mapping, and the
recent nature of this development, the City directed us not to make a recommendation here.
7.14.3 Cost Opinion
This does not apply.
7.14.4 Priority
No priority is assigned to this project.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 48
7.15 PROJECT 10 - Floodplain Development South of Business 50 (County
Project)
7.15.1 Description
There are eight homes, one apartment building, two mobile home parks, and about 25 businesses on the
south side of Business 50 that are within the 100-year future floodplain. The floodwater depths are not
severe, generally less than a foot. However if future development is allowed upstream the depths of
floodwaters may increase by as much as 2 feet (Figure 7-10).
There are also several culverts that convey flow from Business 50 to the stream that are too small for the
flow, but they are privately owned.
7.15.2 Recommendation
The models predict that this area will be subject to infrequent flooding without new development
upstream, and that new development without careful controls will certainly make the situation worse. It
does not appear practical to increase the size of the channel or to build levees to keep runoff out of these
businesses and homes.
The EPA makes model ordinances and design manuals available (http://www.stormwatercenter.net), and
example ordinances at this site actually use new development to remediate problems like this. One
solution to an already developed problem is to require new development to detain runoff at very high
levels (see the City of Seattle ordinance), reducing downstream flow from current levels, rather than just
keeping it constant. Such a solution might be practical, but the City and County would have to act
together, and the differing needs of the two entities would have to be worked out.
7.15.3 Cost Opinion
This does not apply because this recommendation is nonstructural.
7.15.4 Priority
This project is assigned a HIGH priority because of the inhabited structure risk.
7.16 PROJECT 11 – Ravenwood Drive (County Project)
7.16.1 Description
There are two low water crossings south of Business 50 that are overtopped by 22 inches (GT009) and 19
inches (GT008) in the 10-year existing conditions storm. The existing 100-year floodplain is shown, and
the corresponding overtopping depths are 53 inches and 27 inches (Figure 7-11). This bridge over
Ravenwood Dr. provides the sole access to emergency services for 24 single family dwellings, two
apartment buildings, and some light industrial buildings.
Neither of these bridges passes the 5-year event, but the Ravenwood Drive bridge will pass the 2-year
event.
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City of Jefferson, Missouri
Feburary 3, 2005 49
7.16.2 Recommended Improvement
Both of these bridges and associated roads are private structures, and it is not the responsibility of the
County to improve them. These suggested improvements are included in this report with cost estimates at
the request of the County.
Ravenwood Dr. bridge and approaches should be raised to allow the ten year flow completely under the
bridge. The other private drive bridge should either be raised or arrangements should be made to close it
during high water, or the owner should be encouraged to install guardrails.
An alternative route into this neighborhood might be considered instead of this improvement (a right of
way exists in the proposed zoning plan for entering this area from the south), and the bridge could be
removed.
7.16.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Ravenwood Drive
bridge (48' x 14') 672 SF $75 $50,400
approaches compact & fill 600 CY $19 $11,400
R&R pavement 506 SY $53 $26,794
seeding 0.20 acre $2,500 $500
finish grading 600 SY $4 $2,400
Hauling, 6cy truck, 1/4 mile roundtrip 600 CY $3 $2,088
Subtotal $93,582
Mobilization / Demobilization 5 % $4,679
Traffic Control 10 % $9,358
Utility Relocation 10 % $9,358
Subtotal $116,978
Contingency 25 % $29,245
Construction Total $146,223
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $73,111
PROJECT TOTAL $219,000
7.16.4 Priority
No priority is assigned this project because these roadways are privately owned.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 50
7.17 PROJECT 12 – Flanders Road (County Project)
7.17.1 Description
There is a low water crossing on Flanders Rd. (GT050) that is overtopped by 30 inches in the 10-year
event and by 41 inches in the 100-year storm event. The surrounding roads are also underwater partly due
to this overtopping and its backwater effects, but also from the backwater effects of the two upstream
driveways (GR55198 and GR55213) (Figure 7-12).
There are 15 houses for which Flanders Rd. is the sole access for emergency services, and loss of service
occurs in the smallest modeled storm. The model predicts that the two-year, existing conditions storm
overtops Flanders by 19 inches.
7.17.2 Suggested Improvement
These culverts and Flanders Rd. are all private structures. It is not the responsibility of the County to
improve them. However, these suggested improvements are included in this report with cost estimates at
the request of the County.
Flanders Rd. should be raised for a distance of 240 feet (by as much as four feet) to an elevation of 588',
and a small bridge should be build on Flanders. Some overtopping could still occur on Schumate Chapel
Rd. because of the upstream driveways.
7.17.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Flanders Road
bridge 1000 SF $75 $75,000
approaches compact & fill 316 CY $19 $6,004
R&R pavement 400 SY $53 $21,200
seeding 0.24 acre $2,500 $606
finish grading 1173 SY $4 $4,693
Hauling, 6cy truck, 1/4 mile roundtrip 316 CY $3 $1,100
Subtotal $108,603
Mobilization / Demobilization 5 % $5,430
Traffic Control 10 % $10,860
Utility Relocation 10 % $10,860
Subtotal $135,754
Contingency 25 % $33,938
Construction Total $169,692
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $84,846
PROJECT TOTAL $255,000
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City of Jefferson, Missouri
Feburary 3, 2005 51
7.17.4 Priority
No priority is assigned to this project because these roadways are privately owned.
7.18 PROJECT 13 - Angelia Avenue (County Project)
7.18.1 Description
The model predicts street flooding on Angelia Ave. for all storm events modeled. The depth in the 100-
year storm is 15 inches and in the 10-year storm it is about 5 inches. There have been reports of yard
flooding on the north side of the street (Figure 7-13).
7.18.2 Recommended Improvement
There are about 660 feet of 24 inch pipes that should be replaced with 36 inch pipes. The County should
consider installing more efficient curb inlets and tributary piping when this project is executed. Because
the smaller pipes were not examined in these models, this recommendation is conservative and further
investigation would be required to determine the actual needs associated with this project.
7.18.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Angelia Ave
36" RCP 660 LF $560 $369,600
15" RCP 198 LF $229 $45,342
curb inlets 8 ea $2,425 $19,400
grate inlet/junction boxes 3 ea $2,425 $7,275
pavement R&R 50 SY $53 $2,638
Subtotal $444,255
Erosion Control 2 % $8,885
Mobilization / Demobilization 5 % $22,213
Traffic Control 2 % $8,885
Utility Relocation 2 % $8,885
Subtotal $493,123
Contingency 25 % $123,281
Construction Total $616,404
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $308,202
PROJECT TOTAL
$925,000
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City of Jefferson, Missouri
Feburary 3, 2005 52
7.18.4 Priority
This project is assigned a MEDIUM priority because of street flooding.
7.19 PROJECT 14 – Schumate Chapel Road Culvert (County Project)
7.19.1 Description
This box culvert (GT019) provides access to two farms at the end of Schumate Chapel Rd. The culvert
and its approaches are overtopped by 15 inches by the 100-year storm and by 6 inches in the 10-year
storm. The road is not the sole access to these homes, but this amount of overtopping is exceeds local
standards. Figure 7-14
7.19.2 Recommended Improvement
When future development becomes a force in this area, or when the Schumate Chapel Rd. is upgraded, this
culvert and its approaches should be raised out of the floodplain. The addition of a 6 foot by 7 foot box
culvert would bring the 10-year flow under the road.
7.19.3 Cost Opinion
Description Quan. Unit Unit Price Total Cost
Schumate Chapel Road
6x7 RCB x 30 30 LF $833 $24,990
R&R pavement 19 SY $53 $989
seeding 0.20 acre $2,500 $500
finish grading 556 SY $4 $2,222
Subtotal $28,702
Mobilization / Demobilization 5 % $1,435
Traffic Control 10 % $2,870
Utility Relocation 2 % $574
Subtotal $33,581
Contingency 25 % $8,395
Construction Total $41,976
Engineering, Surveying, Geotechnical,
Permitting & Construction Management 50 % $20,988
PROJECT TOTAL $63,000
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City of Jefferson, Missouri
Feburary 3, 2005 53
7.19.4 Priority
This project is assigned a FUTURE priority−there are no habitable buildings threatened, and although
the local standard is not met, this road serves only two homes that have alternate access for emergency
services. Continuing urbanization will dictate action on this project.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 68
SECTION 8.0 - GLOSSARY OF TERMS
8.1 DEFINITIONS
10-year Event - An event (such as rainfall or runoff) having a 10% (1/10) probability of being
exceeded in any given year.
25-year Event - An event (such as rainfall or runoff) having a 4% (1/25) probability of being
exceeded in any given year.
50-year Event - An event (such as rainfall or runoff) having a 2% (1/50) probability of being
exceeded in any given year.
100-year Event - An event (such as rainfall or runoff) having a 1% (1/100) probability of being
exceeded in any given year.
Design Criteria - Guidelines upon which planning and engineering decisions and judgments are
based.
Design Standards - Detailed engineering drawings and/or specifications promulgated by public or
private organizations that leave little choice to design engineers and technicians (e.g., manhole,
catch basin, and inlet standards).
Design Storm - A precipitation event that, statistically, has a specified probability of occurring in
any given year (expressed either in years or as a percentage).
Detention Facility - Any structure, device or combination thereof, that functions to accept inflow
from surface runoff and discharge it at a controlled rate less than the peak inflow rate.
Developer - Any person or corporation engaged in the process of changing, modifying or altering the
use of land.
Development - Any activity that alters the surface of the land that generally creates additional
impervious surfaces including, but not limited to, pavement, buildings and structures.
Drainage - Interception, collection and removal of excess stormwater from an area into another area
or into a receiving water body.
Enclosed Drainage System - A drainage system consisting of essentially continuous pipes and/or
box culverts below the ground surface.
Erosion - The removal of soil particles by the action of flowing water.
Excess Runoff - Direct surface runoff that cannot be accommodated satisfactorily by the existing or
planned drainage system.
Flood Control - Preventing the entry of stormwater into an area from another area, or from a stream
or other water body.
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Feburary 3, 2005 69
Floodplain - The area surrounding a watercourse that is inundated with floodwater.
Flood Routing - An analytical technique used to compute the effects of system storage and system
dynamics on the shape and movement of a flood wave.
Floodway - A tool or concept used by local communities for flood plan management. The area of
the 100-year flood plain is divided into a floodway and floodway fringe. The floodway is the
channel of the stream plus any adjacent flood plain areas that must be kept free of encroachment
to that the 100-year flood can be carried without substantial increases in flood height. Minimum
Federal standards limit such increases to 1.0 foot, provided hazardous velocities are not exceeded.
Freeboard - The vertical difference in elevation between the hydraulic gradient and a referenced
point. Examples are the difference between the maximum water surface level behind a dam and
the top of a dam, or the difference in elevation between the water surface at a culvert beneath the
roadway and the surface of the roadway.
Head - The difference in depth of a liquid at two given points; a depth generally expressed in feet.
HEC-RAS - United States Corps of Engineers Hydrologic Engineering Center’s program for
modeling water surface profiles in open channels, River Analysis System.
Hydraulic Gradient - The elevation of the surface of the water in the drainage system at any point.
Hydrograph - A graph of runoff rate, inflow rate or discharge rate, versus time.
Hydrologic Soil groups - A soil characteristic classification system defined by the U.S. Soil
Conservation Service in which a soil may be categorized into one of four soil groups (A, B, C, or
D) based upon infiltration rate and other properties.
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 70
Impervious Surface - Any surface that does not readily permit water to infiltrate. Examples are
roofs and concrete or asphalt-paved surfaces.
Improved Channel - Any channel whose characteristics are changed by either grading or
construction of lining materials.
Interception - Rainfall that is caught by foliage, branches, leaves, and other aboveground objects.
Lag - The time interval from the center of mass of excess rainfall to the peak rate of runoff.
Level of Service - The return period for which a drainage system, or an individual element of that
system, has adequate hydraulic capacity.
Master Planning - A “systems” approach to the planning of facilities, programs and management
organizations for comprehensive control and use of stormwater within a defined geographical
area.
Natural Channel - An existing channel that has not been appreciably altered by grading, lining or
changing its course.
Open System - A drainage system consisting of open channels, either natural or improved, with only
comparatively short lengths enclosed by pipes or culverts.
Pervious Surfaces - Surfaces that absorb water such as undeveloped areas, fields, yards and other
unpaved areas.
Reach - A specific length of the storm drainage system between two points. For example, a reach
may consist of a single culvert or may consist of several connected pipes or channel sections.
The term "line" may also be used synonymously within the report.
Receiving Waters - Streams, lakes, bays, etc., into which stormwaters are discharged.
Return Period - A statistical term for the average frequency that a given event may be expected to
occur, although it does not imply that the event will occur regularly at even intervals. It can also
be defined as the reciprocal of the probability of an event. For example, a storm having a 10-year
return period statistically can be expected to occur once in a period of 10 years, a probability of
occurrence of 0.10, or 10%. However, the event may occur at any time, and two such events may
actually occur on successive days.
Sediment - Soil particles eroded by flowing water; either in suspension in that water or as deposited.
Storm Drainage System - Natural or constructed facilities and appurtenances, such as ditches,
natural channels, pipes, culverts, bridges, improved channels, street gutters, inlets and detention
facilities, which serve to collect and convey surface drainage.
Storm Sewers - Usually, enclosed conduits that transport excess stormwater runoff toward points of
discharge (sometimes call “storm drains”).
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 71
Stormwater Management - Encompasses both “control” and “developmental” activities in which
there is physical interaction with stormwater (a broader interpretation includes activities of an
institutional nature – financing, staffing, etc.).
Stormwater Storage - Temporary storage of excess runoff on, below, or above the surface of the
earth for the purpose of attenuating excess runoff.
Time Of Concentration - The time period necessary for surface runoff to reach the outlet of a sub-
basin from the hydraulically most remote point in the tributary drainage area.
Travel Time - The sum of the time intervals for overland flow, sewer or gutter flow, and pipe and
channel flow from the hydraulically most remote point in the tributary to the discharge point of
interest.
Watershed - All land draining to the storm drainage system at any given point. This term is used
synonymously with the terms tributary area, drainage area, drainage basin, catchment area,
subwatershed and subarea.
Water Surface Profile (Existing) - the “Existing” water surface profiles represent flooding
conditions based on current land use conditions within the study area.
Water Surface Profile (Future) - the “Future” water surface profiles represent flooding conditions
based on future land use conditions within the study area.
Zone A - FEMA Flood Insurance Zone - Special Flood Hazard Areas inundated by the 100-year
flood, as determined by approximate methods; no base flood elevations are shown and no flood
hazard factors are determined.
Zone AH - FEMA Flood Insurance Zone - Special Flood Hazard Areas inundated by types of 100-
year shallow flooding where depths are between 1.0 and 3.0 feet; no base flood elevations are
shown and no flood hazard factors are determined.
Zone A1, A3-A6, A8, A9, A14, A16 and A18 - FEMA Flood Insurance Zone – Special Flood Hazard
Areas inundated by the 100-year flood, with base flood elevations shown and zones subdivided
according to flood hazard factors.
Zone B - FEMA Flood Insurance Zone – Areas between the Special Flood Hazard Areas and the
limits of the 500-year flood; areas are protected from the 100- and 500- year floods by dikes,
levee or other water control structure; areas subject to certain types of 100-year shallow flooding
where depths are less than 1.0 foot; and areas subject to 100-year flooding from sources with
drainage areas less than one square mile.
Zone C - FEMA Flood Insurance Zone – Areas of minimal flooding.
8.2 ACRONYMS
Gray’s Creek Stormwater Master Plan
City of Jefferson, Missouri
Feburary 3, 2005 72
APWA - American Public Works Association
cfs – Cubic feet per second
CIP - Capital Improvements Program (or Plan)
CMP - Corrugated metal pipe
CMPA – Corrugated metal pipe arch
DTM - Digital Terrain Model
EPA – Environmental Protection Agency
FEMA - Federal Emergency Management Agency
FIS - Flood Insurance Study
GIS - Geographic Information System
HEC – Hydrologic Engineering Center (U.S. Army Corps of Engineers)
MDNR – Missouri Department of Natural Resources
MoDOT – Missouri Department of Transportation
NFIP - National Flood Insurance Program
RCB – Reinforced Concrete Box
RCP – Reinforced Concrete Pipe
SWMM – Stormwater Management Model
TIN - Triangulated Irregular Network
USACE - Unites States Army Corps of Engineer
10050251052 10050251052
GC0000321.11109381665237GC0000321.11109381665237
GC000069.5433631252014GC000069.5605145373022
GC0001298.12161801561259869GC0001298.127122819916112891
GC0002355.6393328231813GC0002355.6574842342820
GC00025131.31129380645035GC00025131.3143120104846747
GC00026188.62181801551239566GC00026188.628924120916813293
GC0002785.3887363503927GC0002785.313211197796345
GC0003511453732262014GC0003511453732262014
GC00039206.926722319315512185GC00039206.9363306267217173124
GC00046149.2302253220178140100GC00046149.2334281246199158113
GC0005127.71119381655136GC0005127.71119381655136
GC0005516.81068978635035GC0005516.81068978635035
GC000658.3463934272216GC000658.3463934272216
GC0006625.2145123108887152GC0006625.2145123108887152
GC0006899.12141791551259869GC0006899.1455394351295244184
GC0007073.6716052423323GC0007073.6776556463626
GC0007117655346372920GC00071171089280665338
GC00072130.7 000000GC00072130.7 322211
GC0007440.9806657463625GC0007440.911910088715741
GC0007522.5857162503928GC0007522.51631411261058766
GC00076166.4335279242194152107GC00076166.4421354308250199142
GC000771.5151311975GC000771.5151311975
GC00078115.9350293254205162114GC00078115.9479406356291234169
GC0007917429124421317213697GC00079174331279244199159114
GC00080253.12101741501199364GC00080253.1337283247200159113
GC00083274.5847060483726GC00083274.51721451271038259
GC000878812310287695437GC00087881821521321068359
GC00088173.81199885675236GC00088173.81901601391138964
GC0009018130725622217814098GC00090181398335292237189135
GC0009477.4163136118957553GC0009477.421117815612710173
GC00095262.823519617113810977GC00095262.8294248217177142102
GC00097283.2445373325262208147GC00097283.2525443387315251180
GC0009844.913111096776144GC0009844.913511499816446
GC000992.8302522181511GC000992.8302522181511
GC00101166.6150126110897151GC00101166.61711441271038360
GC0010379.91751461271028057GC0010379.92051721501229769
GC00104371.4419350304245194137GC00104371.4557471413337270195
GC00105303.4529443385310245174GC00105303.4632533466379303217
GC00106146.1345290253204162115GC00106146.1415351308251201145
GC00108166.728623920716713293GC00108166.7357301263214171123
GC0011030.81068977624934GC0011030.81129381655236
GC0011429.9146124109907353GC0011429.9151129114947655
GC00116191429360313253201143GC00116191508429376306245176
GC00117294.3520438381308242167GC00117294.3557471412335265186
GC00121174.5384320277223175123GC00121174.5799689614513422317
GC001257224220117413910977GC001257228023520416413092
GC00126143.321818316013010374GC00126143.3301257227187152111
GC00133592151801561269970GC0013359299253222182146106
GC0013585.124520718114711885GC0013585.1300256226186151110
GC00136144.8357301263214171122GC00136144.8433368324266214156
GC0013896.82001691471199568GC0013896.8271231204168136100
GC001416.3605146383224GC001416.3645549423426
GC00143851991681461199568GC0014385270231204169137101
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
A- 1
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC0014750.1139120106887254GC0014750.11681461301109169
GC0015817.2494236292316GC0015817.2726154453627
GC001593.61614121086GC001593.61614121086
GC00160176.529825021717513999GC00160176.5495425376312255189
GC00161133.3167139121977654GC00161133.3286244215177143105
GC0016559.2867162493927GC0016559.2867162493927
GC001667612710590725639GC0016676294251222184150110
GC0016819.3373127221712GC0016819.3403429241913
GC0017697.428023520516613294GC0017697.4524453405340281212
GC0017767.11821531331088661GC0017767.123219717314211483
GC001781.71916141297GC001781.721181613118
GC0017994.9146121104836545GC0017994.9320274242200163120
GC00181299.2498418364295234166GC00181299.2584494433353282203
GC0018790.71871561351098661GC0018790.726622619816213094
GC001881432021691471189366GC0018814328223921017113799
GC0019095.32001681471199467GC0019095.326722820016513397
GC0019264.6161135118957654GC0019264.6263226200166136101
GC00199426.8585494432352281202GC00199426.8827709628521425315
GC0020517.51018574604733GC0020517.520617916113711488
GC00206378.8524441385312249178GC00206378.8781669592491400296
GC00207373.1571479417337267190GC00207373.1840717632522423310
GC00209498.6691582508413329235GC00209498.6896763672553447326
GC00210660.9673549466360268170GC00210660.9957801694555431293
GC00216299.6541458402329264191GC00216299.6607517456375303222
GC00224165.124320317614211279GC00224165.1299252220179143102
GC00240183.4325272237191152108GC00240183.4406344302246197143
GC0024557.612810996796346GC0024557.618816314512210177
GC00246217522440384311247177GC00246217665566498409329240
GC00248144.6356299261212168120GC00248144.6462393346284229167
GC0024950.3182149127997446GC0024950.31991641411108354
GC00261143.2349294256208165118GC00261143.2444378333273220160
GC530007.4675649393122GC530007.4675649403122
GC530067514439332720GC530067554843363023
GC530091.7141210865GC530091.719161412107
GC530100.2 322211GC530100.2 332221
GC530129.1655548393123GC530129.1706052433525
GC530163.123191714118GC530163.123191714118
GC5302261.51731441251007955GC5302261.522519016613510777
GC53024195.525220817914211177GC53024195.525220817914211177
GC530280.910 98653GC530280.910 98653
GC5302911.5594943352719GC5302911.5594943352719
GC530313.1292421171310GC530313.1292421171310
GC530323.522191613107GC530323.522191613107
GC530365.6423631252014GC530365.6423631252014
GC530371.61311 9864GC530371.61311 9864
GC530425.7756558494131GC530425.7756559494131
GC5304317.6148126110917353GC5304317.6151128113937554
GC5304510.1927767544331GC5304510.1927767544331
GC530464312622181410GC530464312622181410
GC530486.8504236292317GC530486.8544640322618
GC530507.2827162524231GC530507.2827162524231
GC5305213.4129112101857154GC5305213.4148129116988263
GC530548.71008778665542
A- 2
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC530569.2645447393122GC530569.2645447393122
GC530572.426221916139GC530572.426221916139
GC530580.9 977543GC530580.9 977543
GC5306011211 9865GC5306011211 9865
GC530612151211975GC530612151211975
GC5306226.412610692745942GC5306226.4150127111907252
GC530630.9 655432GC530630.9 655432
GC5306515917767544330GC5306515917767544330
GC5306712.4695648382920GC5306712.4806657453524
GC530717.1705951413323GC530717.1867364534331
GC530732.822181613107GC530732.822181613107
GC530743.9312622181410GC530743.9312622181410
GC530794.2352925201611GC530794.2352925201611
GC530811.111 98654GC530811.111 98654
GC5308215.2937868554431GC5308215.2947969564431
GC5308310.7655447383021GC5308310.7655447383021
GC5308411.5473934272115GC5308411.5625246373021
GC530861.3 876432GC530861.3131110864
GC530876.9514236292316GC530876.9595043352820
GC530911.11311 9864GC530911.11311 9864
GC530932.11916141196GC530932.11916141196
GC530965.2453833272115GC530965.2453833272115
GC530977.1615145362920GC530977.1615145362920
GC530992.320171512107GC530992.320171512107
GC531016.4453833272115GC531016.4453833272115
GC5310821.2625144352719GC5310821.2897261463420
GC531093.11916141196GC531093.11916141196
GC531120.8 655432GC531120.8 655432
GC531135.5403429241913GC531135.5403429241913
GC531155.2353026211612GC531155.2353026211612
GC531171.71715131086GC531171.71715131086
GC531198.8463833272115GC531198.8463833272115
GC531206.6514337302417GC531206.6514337302417
GC531219.9645447383022GC531219.9645447383022
GC531221.61210 9764GC531221.61210 9764
GC531253.5352926211612GC531253.5352926211612
GC531263.22016141297GC531263.22016141297
GC531271.820171512107GC531271.820171512107
GC5313013.11159886715842GC5313013.11159887725842
GC531331.9151211975GC531331.9151211975
GC531348.7605044352820GC531348.7605044352820
GC531361.210 87653GC531361.210 87653
GC531370.8 976543GC531370.8 976543
GC5313930.71169785685438GC5313930.7142120105866950
GC531452.91916141196GC531452.91916141196
GC53148627221814106GC5314862117151185
GC5314912.7836960493927GC5314912.7836960493927
GC531552.522191613107GC531552.522191613107
GC531571.2 987543GC531571.2 987543
GC5315812.8595043352820GC5315812.8595043352820
GC5315978.61129380634934GC5315954.713311298796345
GC531604.9312622181410GC531604.9312623191510
GC531624.326211814106GC531624.326211814106
A- 3
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC531660.8 654321GC531660.8 654321
GC5316920.6937868554331GC5316920.6937868554331
GC531707.1373127221712GC531707.1373127221712
GC5317113.51038777635036GC5317113.51038777635036
GC531762.623191713118GC531762.623191713118
GC531775.9322723191511GC531775.9322723191511
GC53500140321269234188149105GC53500140409346303247198142
GC5350221.313411398796345GC5350221.313411398796345
GC535062.21614121085GC535062.21614121085
GC535085.6322724191511GC535085.6363127221813
GC535091.310 87653GC535091.310 87653
GC535115.3413430241913GC535115.3413430241913
GC535212.825211815128GC535212.825211815128
GC535283.6393329241914GC535283.6393329241914
GC5353210.8484035282215GC5353210.8544539322518
GC535330.3 221111GC535330.3 221111
GC535340.9 876543GC535340.9 876543
GC535365.3302522181410GC535365.3353026211612
GC5353824.81169785695539GC535385413430241914
GC535416.1393329231813GC535416.1393329231813
GC5354690.423819917213810976GC5354690.4367312274225181132
GC535488.9716052433424GC535488.9716052433424
GC5355016.612310492756144GC5355016.612310492756144
GC550001.722191613118GC550001.722191613118
GC5500210.7665648393122GC5500210.7665648393122
GC550104.6484135292316GC550104.6484135292316
GC550116.7695851423324GC550116.7695851423324
GC550131.51715131086GC550131.51715131086
GC550155.8463934272215GC550155.8463934272215
GC550182.423201714118GC550182.423201714118
GC550193.6373127221712GC550193.6373127221712
GC550216.5564741332618GC550216.5564741332618
GC5502615.81028574604734GC5502615.81028574604734
GC550291.921171512107GC550291.921171512107
GC550304.4403329231913GC550304.4403329231913
GC550314.6514337302417GC550314.6514337302417
GC550322.622191613107GC550322.622191613107
GC550375.2484136292317GC550375.2484136292317
GC550409221518015612610070GC5504092297252221181146106
GC550421.1131110865GC550421.1131110865
GC55045131089180655237GC55045131089180655237
GC550468.3635346372921GC550468.3635346372921
GC55050110 87653GC5505011110 8754
GC550520.7 765432GC550520.7 765432
GC5505425.9927766534230GC5505425.91028675604834
GC5505671.42161811571269970GC5505671.4288244214174140100
GC55058511811521321078460GC550585123119517114011281
GC550601021791481281027955GC55060102321272239196157114
GC5506146.913311195766042GC5506146.91781501311068460
GC5506426.4138115100806344GC5506426.4164138120977754
GC55071221731451261028157GC55071221801521321078561
GC550738.3504236292316GC550738.3504236292316
GC5507512857263524230GC5507512857263524230
A- 4
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC550792.123201714118GC550792.1272320171410
GC550801.61210 8754GC550801.620171513107
GC5508121815131086GC550812262220161310
GC550879.1413429231813GC550879.1584842342719
GC5508811.5443631251913GC5508811.5605043352820
GC550903.226221915129GC550903.226221915129
GC5509221815131186GC5509221815131186
GC5509319.51038674604733GC5509319.512110188715640
GC550958.1484035282316GC550958.1484035282316
GC5510035.2162137120977856GC5509835.21891611411169368
GC551011.3 000000GC551001.3 000000
GC5510310.2695952433525GC5510310.2897768574735
GC551050.3 544332GC551050.3 544332
GC5510877.526322419716113094GC5510877.5280239210173140102
GC551100.71110 9765GC551100.71110 9765
GC551122.9383329252116GC551122.9383329252116
GC551142.8363128231915GC551142.8383330252116
GC551152.6292522191511GC551152.6353128242015
GC5511714.51008575625036GC5511714.512310694786447
GC55123223201815129GC551232272421181512
GC551243.1383329242015GC551243.1443834292519
GC5512676183150128997447GC55126762191821571259664
GC551272.8292523201613GC551272.8292523201613
GC551281.2 987654GC551281.2 987654
GC551304.222181613107GC551304.222181613107
GC5513220.7786252392816GC5513220.7978068523924
GC551358.2383228221812GC551358.2403329241913
GC5513646.3137115100816546GC5513646.3149126110897151
GC551384.2524439332720GC551384.2585145393225
GC5514013816961494029GC55140131159988746146
GC551425383228231813GC551425625448413426
GC551449.4584942342719GC551449.4897668564533
GC551471.4151311975GC551471.41916141297
GC551491.6151311975GC551491.623201815129
GC551517524438312417GC551517766558483929
GC551531.2131110864GC551531.220171613119
GC5515519857162504028GC55155191139684695640
GC551565.3443732262115GC551565.3443732262115
GC551592.722181613107GC551592.722181613107
GC551626.4554640322618GC551626.4554640322618
GC5516511.1756355443525GC5516511.1756355443525
GC5517118.5776557463726GC5517118.5776557463726
GC5517316.1917667544330GC5517316.1917667544330
GC5517415.1514337302417GC5517415.1514337302417
GC551771.5151211975GC551771.5151211975
GC551816403430241913GC551816403430241913
GC551823.527232016139GC551823.527232016139
GC551875.222181613107GC551875.222181613107
GC551911.3 876543GC551911.3 876543
GC551923.41815131186GC551923.41815131186
GC551937.7524438312417GC551937.7524438312417
GC55198181048776614834GC55198181048776614834
GC551997.2413430241913GC551997.2413430241913
A- 5
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC552011.2131110864GC552011.2131110864
GC5520365.21771491291048359GC5520365.21851561361108762
GC55206111.7317267233189151108GC55206111.7320270236191152109
GC5520722.5140117102836647GC5520722.5140117102836647
GC55213216.5375316275223177126GC55213216.5436368323264211152
GC552160.2 211111GC552160.2 211111
GC552188655447383021GC552188655447383021
GC5522115.91068978635036GC5522115.91139683685439
GC552232.411 98653GC552232.4161311975
GC552245.4332825201611GC552245.4332825201611
GC552251.5141210875GC552251.5141210875
GC5522720.4137115100816445GC5522720.41721461281058461
GC5523714.8937868554331GC5523714.8947868554431
GC5524411.5877465534331GC5524411.5877465534331
GC5524616.8927768554331GC5524616.81099281665338
GC552485.7554741332619GC552485.7675750413324
GC552506.5564741342719GC552506.5645447393122
GC552522.525211915129GC552522.5302623191511
GC552543.9393329241914GC552543.9423531252014
GC552557.8625245362920GC552557.8625245372921
GC552578.3655447383021GC552578.3907768564533
GC552582.11715131086GC552582.11916141197
GC5526025.1146122107866849GC5526025.11651401221008057
GC55266117.4162135117947452GC55266117.422819316913811079
GC552704.322191613107GC552704.324201714118
GC552711.6 654432GC552711.6 876543
GC552735.4696053443627GC552735.4766659494131
GC552766.6443733272115GC552766.6696053453728
GC5527711.3857263514130GC5527711.312410795806650
GC552798.1363026211612GC552798.1373127221712
GC552838.6675750403223GC552838.6857364534331
GC552844.5393328231813GC552844.5474035292317
GC552851.3 987543GC552851.3131110875
GC552877.7453732262014GC552877.7574842342719
GC5529643.81109280645136GC5529643.81751501321098965
GC55297108.525421218314711581GC55297108.5383324284232186134
GC555004.722181612107GC555004.729242117139
GC555012.626221915128GC555012.6352926211712
GC555042.6161312975GC555042.61714131086
GC555053.7383329242015GC555053.7433733282317
GC555063.122181613107GC555063.124201714118
GC5550711.3897566544331GC5550711.31008574614935
GC5550912.4685750403222GC5550912.4685750403222
GC55511524201714118GC55511524201714118
GC555132.81815131196GC555132.81815131196
GC555152.32017151297GC555152.32017151297
GC555173.422181613107GC555173.422181613107
GC5551917.1786556463625GC5551917.11139685705741
GC555214.1433732272216GC555214.1474136302519
GC5552319.2139118103846748GC5552319.2251219197168142110
GC555259.4796658473727GC555259.4958071584734
GC5552737.11199884675236GC5552737.125221518915612692
GC5552919.8685649393021GC5552919.8155133118988060
A- 6
10050251052 10050251052
APPENDIX A
XP-SWMM Runoff Results
Drainage
Area (ac)
Subshed
ID
Subshed
ID
Drainage
Area (ac)
Return Period (years)/Flow (cfs)
Existing Land Use Conditions
Return Period (years)/Flow (cfs)
Future Land Use Conditions
GC55530382.7521439384312249179GC55530382.7689588519428347255
GC5553140.51027964463116GC5553140.524220217614110974
GC5558129.21099180645136GC5558129.21099180645136
GC555833.124201814118GC555833.124201814118
GC555865.7534439312518GC555865.7534439312518
GC555883.9332824201611GC555883.9332824201611
GC555902312510592755942GC555902312510592755942
GC55592125.4353295256206163115GC55592125.4518440387318256186
GC556065.4484034272115GC556065.4484034272115
GC556083.127222016139GC556083.127222016139
GC556123.9353026211712GC556123.9544742363023
GC556150.811 98764GC556150.81110 8764
GC5561911.1393228231813GC5561911.1393329231813
GC556205.8443732262115GC556205.8463934272216
GC5562213.2958172604936GC5562213.212110695806751
GC556265.2585044373022GC556265.2595145373123
GC5563015.5907767554432GC5563015.5958071584634
GC556325.1433632262115GC556325.1463934282216
N19713#11.7534336272012N19717#11.7544437282112
A- 7
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
GC00012.82.10.30.30.30.364791086479108262.4
GC0003—2.50.00.00.00.0334156334156890.4
GC0004—1.00.20.30.20.335425835425865.5
GC0005—1.50.20.20.20.2334156334156221.5
GC0007—2.00.20.30.20.365801076580107252.6
GC0008—2.00.20.30.20.360741026074102292.0
GC0009—2.00.30.30.30.363781076378107252.5
GC0010—2.00.30.40.30.478971337997133243.2
GC0011—2.00.41.10.51.1101119160117120160263.9
GC0013—3.00.00.30.00.3101142216100143216591.7
GC0014—3.00.00.00.00.0101125176101124176731.4
GC0015—2.00.00.00.00.0293648293648520.6
GC0016—5.00.00.00.00.01311632211872263011061.2
GC0018—2.50.00.00.00.070851167085122641.1
GC0019—2.50.00.00.00.065801256580128700.9
GC0020—2.00.20.30.20.365871246588124183.7
GC0022—2.00.10.20.10.2394764394764251.5
GC0024—2.00.00.00.10.1212635354355300.7
GC0025—2.00.00.00.10.2212636374557211.0
GC0026—2.50.00.00.00.3273343404768510.5
GC0027—2.00.00.00.10.5232840232941330.7
GC0028—2.00.00.00.00.023285623295773.5
GC0029—2.00.00.00.00.0232845232945231.0
GC0030—3.00.00.00.00.0263244283446151.7
GC0031—3.00.00.00.00.06072958095130860.7
GC0032—3.00.00.00.00.06072958095121830.7
GC0033—3.00.00.00.00.06072958095121810.7
GC0034—2.50.00.00.00.0374458374559790.5
GC0036—2.50.00.00.00.0374458374559630.6
GC0037—6.00.00.00.00.01642002661992403113730.4
GC0038—2.00.00.00.00.1263244283446300.9
GC0039—2.00.00.00.00.1263245283347290.9
GC0040—2.00.00.00.00.0263242283345161.6
GC0041—2.00.00.20.00.2395274405375321.2
GC0042—2.50.00.00.00.0394967404967560.7
GC0043—2.50.10.20.10.2394967404967321.2
GC0044—2.00.20.50.40.635587544657849.7
GC0045—2.00.00.00.00.2313751344155370.8
GC00462.21.80.00.30.00.4333873334877112.9
GC0047—2.00.61.20.91.391116121423170.5
GC0048—2.50.00.00.00.0343860344164450.7
GC0051—3.00.00.00.00.070771147380124461.5
GC0052—2.00.00.00.00.0141723141723170.8
GC0053—2.00.00.00.00.0141723141723310.4
GC0054—2.00.00.00.00.0141823141823250.5
GC0055—2.00.00.00.00.0131621131621240.5
GC005610.07.00.00.00.00.01682092811652052766840.2
GC00576.74.90.00.00.00.01421782441421782441650.9
GC0058—2.00.00.00.00.068106810220.3
GC0059—2.00.00.00.00.067106710210.3
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
B-1
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC00603.42.50.00.10.00.1384285384285530.7
GC0061—2.50.00.00.00.0172129172129121.4
GC00623.32.50.20.30.20.3586787576688262.2
GC00633.32.50.40.50.40.5647296627397223.0
GC00643.32.50.40.50.40.5566891576992262.1
GC00653.02.00.00.00.00.155689266811091110.5
GC00663.02.00.00.00.00.03341554150671320.3
GC0067—2.00.00.00.00.0344257394764550.6
GC00686.04.00.00.00.00.01519251923307900.0
GC0069—2.00.00.00.00.0242939253142670.4
GC0070—4.00.00.00.00.07188119841031301010.7
GC0071—2.00.00.00.00.1384765566890430.9
GC0072—3.50.00.00.00.048608267811091890.3
GC0073—3.00.00.00.00.0941161541051281511720.5
GC0074—3.00.00.00.00.0941161541051281511430.7
GC0078—2.00.00.00.00.0131622141724150.9
GC0079—2.00.00.00.00.0 44656890.4
GC0080—3.50.00.00.00.04453704959761050.4
GC0081—2.00.00.10.20.2273344455369290.9
GC0082—4.00.00.00.00.077941271221461882980.3
GC0084—2.00.00.00.00.0212636222737500.4
GC0086—3.00.00.00.00.0405067536486790.5
GC0087—3.50.00.00.00.0637710581981321050.6
GC0088—3.50.00.00.00.06884114891081461470.5
GC0089—2.00.00.00.00.0263245344260261.0
GC0090—2.50.00.00.00.0121622172129840.1
GC0091—3.00.00.00.00.0202535283547930.2
GC0092—2.00.00.00.00.0313852354257271.2
GC0093—2.00.00.00.00.0242944283250241.0
GC0094—2.00.00.20.10.3131822161824290.4
GC0095—2.00.00.30.20.366821117593126631.1
GC0096—3.00.00.30.10.340811574890165530.8
GC0098—4.00.00.00.00.082124180911401921100.7
GC0099—4.00.00.00.00.087130188971462001260.7
GC0101—3.00.00.00.00.0232940313851141.7
GC0103—4.50.00.00.00.01301591911601732081480.9
GC0104—2.50.00.00.00.0273243303647221.2
GC0105—3.00.00.10.30.484103140169198251761.1
GC0106—3.00.00.00.00.0475879587195910.5
GC0107—2.50.20.20.40.46785119157190253381.8
GC0108—2.50.00.00.20.3394968100121159540.7
GC0109—3.00.00.00.20.34664102141176242361.3
GC0110—3.50.00.00.00.065801096580109880.7
GC0111—2.00.00.00.00.0141824141824240.6
GC0112—2.00.00.00.00.0141824141824220.6
GC0113—2.00.10.20.10.2323953323953112.8
GC0114—2.00.00.10.00.1202433202433111.9
GC0115—3.50.00.00.00.075921257592125223.5
GC01165.04.00.00.00.30.4206256354318396538912.3
GC0117—2.50.00.00.00.0273448273448560.5
B-2
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC0118—2.00.00.00.00.0162027162027230.7
GC0119—2.00.00.00.00.0162027162027310.5
GC0121—2.00.00.00.10.2212637404758250.8
GC0122—3.50.00.00.00.09611721596117214771.3
GC0123—3.00.00.00.00.073881277388127870.8
GC0124—3.00.00.00.00.073871757388175401.8
GC0125—3.00.00.00.00.0536587536587770.7
GC0126—3.00.00.20.00.253661105366110341.5
GC0127—3.00.00.20.00.2496084496084750.7
GC0128—3.00.00.00.00.049601014960101411.2
GC0129—3.00.00.00.00.0303751303751970.3
GC0130—4.50.00.00.00.01862133631972254131571.2
GC0131—4.50.00.00.00.01882153331982273711751.1
GC0132—3.50.00.20.00.28510714686108147831.0
GC0133—3.00.40.50.40.58210413983104140591.4
GC0134—3.00.50.60.50.68510213686102136471.8
GC0135—3.00.00.00.00.069831146984115850.8
GC0136—3.00.30.60.30.669941307095130411.7
GC0137—3.00.30.60.30.6718611572871151110.6
GC01384.04.00.00.00.00.01201482041201492032640.5
GC0139—4.00.00.00.00.07086118881071441400.5
GC01404.04.00.00.00.00.01161441981161441972840.4
GC0141—4.00.00.00.00.07086118881071441390.5
GC0142—4.00.00.00.00.06985117861061421350.5
GC0143—3.50.00.00.00.06885116861051421150.6
GC0144—2.50.00.00.00.0142129141828370.4
GC0145—2.50.00.00.00.0142128141827370.4
GC0146—2.50.00.00.00.0142128161827370.4
GC0147—3.00.00.00.00.0405260374959313.9
GC0148—2.50.00.00.00.0273335243132370.7
GC0149—3.00.00.00.00.04760754356721240.4
GC0150—2.50.00.00.00.0273335243132370.7
GC0151—2.50.00.00.00.0131618141822370.4
GC0152—2.00.40.40.40.469811056981105183.9
GC0153—2.00.40.40.40.4536787536787291.8
GC0154—2.00.40.40.40.4496484496484301.6
GC0155—2.01.52.01.82.3446181456082281.5
GC0156—2.50.00.10.00.1405069405069421.0
GC0158—2.00.20.20.20.2374663374663113.3
GC0159—2.00.20.20.20.2384662384662191.9
GC0160—5.50.00.00.00.07896131901111411740.4
GC016920.020.00.00.00.00.01431752383574075237780.2
GC017120.020.00.00.00.00.01191441821341561962890.4
GC01866.04.00.00.00.00.0991271831101411993270.3
GC0227—1.00.30.40.40.427324330364873.8
GC0442—2.00.00.10.20.2344258566789351.0
GC04436.04.00.00.00.00.01581902701722042904530.3
GC0444—4.00.00.00.00.0158189269172203289772.0
GC04455.04.00.00.00.00.01581962681722092873310.5
GC0446—3.50.00.00.00.0515971606875950.5
B-3
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC0447—2.80.00.00.00.0505870596775970.5
GC0448—2.00.00.00.00.0263244263244440.6
GC0450—2.00.00.00.00.0131622131622330.4
GC0451—2.00.00.00.00.0131622131622390.3
GC0452—2.50.00.00.00.0324055324055510.6
GC0453—2.50.00.00.00.0324055324055580.6
GC0454—2.00.40.50.40.5495979495979202.5
GC0455—2.00.20.20.20.2506081506081222.3
GC0456—2.00.10.20.10.2445575445575411.1
GC0457—2.00.30.40.30.4445474445474301.5
GC0458—2.00.40.40.40.4445574445574261.7
GC0459—4.50.00.00.00.01291612221391732372220.6
GC0460—2.00.00.10.00.1546697546697173.2
GC0461—3.00.00.00.00.0698611869861181120.6
GC0462—2.50.00.00.00.0283551283551660.4
GC0463—2.50.00.00.00.0243044243042540.4
GC0464—2.50.00.00.00.0243043243041730.3
GC0465—2.00.00.00.00.0243041243040400.6
GC0466—2.00.00.00.00.0243041243041450.5
GC0467—2.00.00.00.00.0162027162027240.7
GC0469—2.00.00.00.00.0162027162027340.5
GC0470—2.00.00.00.00.0162027162027350.5
GC0471—3.00.00.00.00.0253142253142570.4
GC0472—3.00.00.00.00.0253142253142890.3
GC0473—2.00.30.40.30.4151825151825111.3
GC0474—2.00.00.00.00.0111318111318210.5
GC0475—3.00.00.00.00.0313852313852630.5
GC0477—2.50.00.00.00.0202532202532300.7
GC04782.92.10.00.00.00.0212633212633201.0
GC04805.14.30.00.00.00.0189233323192236327375.2
GC0481—2.00.30.30.30.39011014890110148175.3
GC0482—2.50.20.30.20.38310214083102140312.7
GC0486—2.00.00.00.00.0 112112390.0
GC0487—2.50.00.10.00.1384865384865520.7
GC0488—3.00.00.00.00.063781066883113750.8
GC04896.05.00.00.00.00.01722162902072443301331.3
GC0490—2.00.00.10.00.1202534202534250.8
GC0491—2.00.20.30.20.3232838232838390.6
GC0492—3.50.10.30.30.3799913710412817398.6
GC0494—4.50.00.00.00.01551912541742122662260.7
GC0606—2.50.20.20.20.354721086788122331.6
GC0607—3.00.00.00.00.05467916175101541.0
GC0608—3.00.00.00.00.05466926175110610.9
GC0609—4.00.51.11.31.9126171288216253333432.9
GC0610—3.50.00.00.00.2107132181140171231283.9
GC06116.03.60.30.51.21.6319454697852102713741262.5
GC0612—3.50.00.00.00.07695133106130178651.2
GC0613—2.50.30.30.30.38010013897120164412.0
GC0614—4.00.00.30.30.4238325454305396537912.6
GC06155.53.90.00.10.00.42342994712754045641251.9
B-4
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC0616—2.50.00.20.00.252781005278100401.3
GC0617—2.50.00.10.00.1526691526691491.1
GC0618—2.50.00.20.00.2526285526285511.0
GC0620—2.50.40.40.40.4617296617296391.6
GC0621—2.50.10.20.10.261761026175101521.2
GC0622—3.00.00.20.00.162761056374106511.2
GC0625—2.00.10.10.10.2243041344258191.2
GC0627—3.00.00.00.00.0253144354460560.4
GC0628—2.00.00.00.00.8151936152139180.8
GC0630—2.50.00.00.00.0283548283548241.2
GC0631—2.50.00.00.00.0303548293548560.5
GC06325.03.00.00.00.00.0991221661181441931750.6
GC0633—4.00.00.00.00.0991181711141401981400.7
GC0634—4.00.00.00.00.0991181661141381931070.9
GC06353.02.00.00.00.00.0526582647491800.6
GC0636—2.50.40.40.40.4546386648096371.4
GC06378.06.00.00.00.00.03674526123884776459320.4
GC0638—2.00.00.00.00.116174916195444.2
GC0639—2.00.91.31.01.330598337578693.2
GC0640—2.01.41.81.51.837425439455694.1
GC0641—2.00.00.00.10.1232731303039161.5
GC06423.02.00.80.90.91.087112152114140184372.3
GC0643—2.02.12.22.22.3779412795115153710.5
GC0644—2.00.91.42.02.555721057091130202.7
GC0645—2.00.00.00.00.0151823182228290.5
GC0646—2.00.00.10.10.2182451223867111.6
GC06475.03.00.20.30.30.41041351931331672293960.3
GC06485.94.01.01.21.62.1111162236170217296671.7
GC06495.94.00.81.11.72.3112152253184231295532.1
GC0650—3.00.00.00.00.0799010277861051170.7
GC0651—2.50.00.00.00.0395278526897162.4
GC0652—2.50.00.00.00.0222838242940710.3
GC0653—3.30.00.00.00.08110013790110149273.0
GC06542.31.60.20.20.20.333395139455875.0
GC06556.05.00.00.00.00.01772122442082342663860.5
GC0656—2.00.00.00.10.1232838414862300.8
GC0657—2.50.00.00.00.0263244263244400.6
GC0658—2.50.00.00.00.0263244263244730.4
GC0659—2.50.00.00.00.0263244263244790.3
GC0660—2.00.00.50.00.5253547253657251.0
GC0661—2.50.00.40.00.4334867335682201.6
GC0662—2.50.00.30.00.3323955324470430.8
GC0663—2.00.20.20.20.2516076516077481.1
GC0664—2.00.30.30.30.4627189627289163.8
GC0665—4.00.00.00.00.01331482701351492801091.2
GC0666—2.00.40.40.40.4566892566892301.9
GC0667—2.50.20.30.20.370871197087119322.2
GC0668—2.00.10.20.10.2303750324054301.0
GC0669—2.50.10.20.10.2526283526283550.9
GC0670—4.00.00.00.00.085101129981161482850.3
B-5
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC0671—2.00.40.50.40.56678100———611.2
GC0672—2.00.10.20.10.2404764394764341.2
GC0673—2.50.30.40.20.4566889536790361.6
GC0674—3.00.00.20.30.6516293506798461.1
GC0675—2.50.00.00.00.0131521131521170.8
GC0676—3.50.00.00.00.077889687931401000.8
GC0677—4.00.00.00.00.078909888951391090.7
GC06783.83.30.00.00.00.016182316192353.4
GC0679—3.00.00.00.00.1384869465682780.5
GC0680—2.00.50.50.50.6445169536486192.3
GC0681—2.00.40.40.40.5425271536587281.5
GC06824.83.10.00.00.00.0829215882931581410.6
GC06834.83.10.00.00.00.0727915172791521300.6
GC0684—3.00.00.00.00.052571445257145491.1
GC0685—3.50.00.00.00.095124186961251871290.7
GC0686—3.50.00.00.00.09312016694121167821.1
GC0687—3.50.00.00.00.0385165385265920.4
GC0688—2.00.00.00.20.3273447374662320.8
GC0689—2.00.00.00.20.4273453375170281.0
GC0690—3.00.00.00.00.0283550384866360.8
GC0691—3.00.00.00.00.44456785870104431.0
GC0692—3.00.00.00.00.04456755869101421.1
GC0694—3.00.00.00.00.0445675586992960.5
GC0695—4.00.00.00.00.0718811686103128601.2
GC0696—2.50.00.00.00.0273345273345600.4
GC0697—4.00.00.00.00.081100135971171432030.4
GC0698—2.50.00.00.00.0273345273345241.1
GC0699—4.00.00.00.00.0981221601121351681640.6
GC0700—4.00.00.00.00.0981221601121351681640.6
GC0701—4.00.00.00.00.01061311721191441791580.7
GC0702—4.00.00.00.00.0668221273882201070.6
GC0705—3.00.00.00.00.0354462466188341.0
GC0706—3.00.00.00.00.0354462466188770.5
GC0707—2.00.00.00.00.0111419111419310.4
GC0708—4.00.00.00.00.01011221551011221551300.8
GC07095.83.80.00.00.00.08098133921131441290.6
GC0710—2.00.00.00.00.0141826141826290.5
GC0711—2.00.00.00.00.0162132162132190.8
GC0712—2.00.00.00.00.0162127162127200.8
GC0713—2.00.00.00.00.0 347347330.1
GC07153.02.00.00.10.00.175931287593128800.9
GC07163.02.00.41.00.41.0222737222737390.6
GC0718—2.00.20.30.20.3263345263345261.0
GC0719—2.00.30.30.30.3283548283548191.5
GC0720—2.00.30.30.30.3253244253245231.1
GC0721—2.00.10.30.10.3192332192332330.6
GC07227.55.50.00.00.00.01882343212473034091811.0
GC0723—4.00.00.00.00.08810914888109148861.0
GC0725—4.00.00.00.00.088109148881091481750.5
GC0726—2.00.00.00.00.0101216101216490.2
B-6
10-year
event
25-year
event
10-year
event
25-
year
event
10-year
event
25-year
event
100-
year
event
10-year
event
25-year
event
100-
year
event
Ratio of
10-year
Existing
Flow /
Design
Flow
Appendix B
Enclosed System from XP-SWMM, EXTRAN Results
Manning
s Design
Flow
(cfs)
Width
(ft)
Diamet
er or
Height
(ft)
Existing
Conditions
Ultimate
Conditions Existing ConditionsUltimate Conditions
Link ID
Pipe SizeOvertopping Depth (ft)Flow (cfs)
GC0727—2.00.00.00.00.0192437222742250.8
GC0728—2.00.00.00.00.0242939273344330.7
GC0729—2.00.00.00.00.0243041243041270.9
GC0731—2.00.00.00.00.0243041243041380.6
GC0732—2.50.00.20.00.4465081475788261.8
GC0733—4.00.00.00.00.0667389677396850.8
GC0734—4.00.00.00.00.0667389677396601.1
GC0735—4.00.00.00.00.06673896774961770.4
GC0736—3.00.00.00.00.0283548323954670.4
GC0737—3.50.00.00.00.0 568568950.0
GC0738—2.00.00.00.00.0182230212636360.5
GC0739—6.00.00.00.00.01642002691671822091870.9
GC0740—2.00.10.30.10.3232939232939370.6
GC07416.95.00.00.00.00.01421772382222693781910.7
GC07427.04.40.00.00.00.01471822442282703872290.6
GC0743—5.00.00.00.00.01782222881902332931880.9
GC0744—4.00.00.00.00.064801101091321752310.3
GC07459.38.40.00.00.00.01531842562302823785970.3
GC0746—4.00.00.00.00.0718811786103128940.8
GC08213.52.40.81.31.01.5303751344257700.4
GC0824—3.50.00.20.00.6607610771103127611.0
GC0825—3.50.00.00.00.2748812687941411160.6
GC0830—3.50.00.00.00.0717812471781241000.7
GC0831—3.50.00.00.00.093116159931161591820.5
GC0832—3.50.00.00.00.09311615993116159741.3
GC0833—3.50.00.00.00.093116159931161591600.6
GC0834—3.00.00.20.00.259671165966116810.7
GC0835—3.00.00.10.00.159671225967122630.9
GC0836—3.00.00.00.00.059661185966118710.8
GC0837—2.50.00.40.00.459751355975135511.2
GC0838—2.50.00.00.00.0384599384599410.9
GC0839—2.50.00.00.00.0384595384595530.7
GC0840—2.50.00.10.00.140481044048104490.8
GC0841—2.50.00.00.00.0273446273446480.6
GC0842—2.50.00.00.00.0273446273446490.6
GC08433.02.10.00.00.00.0455576455576620.7
GC0941—2.50.00.00.00.079127912180.4
GC09426.04.00.00.00.00.01662052803404055242290.7
B-7
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
Grays CreekMC16079079.81100exex449732.96737.33737.33737.880.014847.08100.2487.580.72
Grays CreekMC16079079.8150exex376732.96737.18737.18737.70.014046.6687.7184.020.69
Grays CreekMC16079079.8125exex327732.96737.05737.05737.560.014116.4776.7980.730.69
Grays CreekMC16079079.8110exex264732.96736.79736.79737.330.015816.457.665.990.72
Grays CreekMC16079079.815exex208732.96736.49736.49737.070.018346.3340.4349.20.76
Grays CreekMC16079079.812exex147732.96736.06735.78736.610.021865.9724.820.220.8
Grays CreekMC16078976.19100exex449731.38737.05737.170.002363.65207.37114.10.31
Grays CreekMC16078976.1950exex376731.38736.97370.002053.33190.09110.610.29
Grays CreekMC16078976.1925exex327731.38736.76736.860.001883.12175.58107.610.27
Grays CreekMC16078976.1910exex264731.38736.61736.690.001552.76159.36104.240.25
Grays CreekMC16078976.195exex208731.38736.42736.480.001322.46139.5799.980.23
Grays CreekMC16078976.192exex147731.38736.12736.170.001092.12111.1293.510.2
Grays CreekMC16078928.98100exex449731.19736.99735.61737.060.001632.25247.62149.860.24
Grays CreekMC16078928.9850exex376731.19736.85735.44736.90.001452.05225.82145.050.23
Grays CreekMC16078928.9825exex327731.19736.71735.3736.760.001371.92207.18140.810.22
Grays CreekMC16078928.9810exex264731.19736.57734.98736.610.001161.69186.99136.070.2
Grays CreekMC16078928.985exex208731.19736.38734.65736.410.001031.51161.79129.530.19
Grays CreekMC16078928.982exex147731.19736.08734.28736.110.001271.55102.73114.480.2
Grays CreekMC16078910Culvert
Grays CreekMC16078899.74100exex449730.95735.56735.21735.860.007645.06130.26102.760.53
Grays CreekMC16078899.7450exex376730.95735.36735735.730.009195.2892.9994.980.57
Grays CreekMC16078899.7425exex327730.95735.23734.76735.570.008764.998489.920.56
Grays CreekMC16078899.7410exex264730.95735.02734.45735.330.008484.6370.281.710.54
Grays CreekMC16078899.745exex208730.95734.72734.15735.190.012265.5237.9762.80.64
Grays CreekMC16078899.742exex147730.95734.38733.76734.710.010474.5832.2340.960.58
Grays CreekMC16078853.29100exex449730.93735.47735.590.003073.2195.69131.680.34
Grays CreekMC16078853.2950exex376730.93735.3735.410.00292.98173.42125.350.33
Grays CreekMC16078853.2925exex327730.93735.16735.260.002822.84156.47120.20.32
Grays CreekMC16078853.2910exex264730.93734.93735.030.002882.68129.95110.30.32
Grays CreekMC16078853.295exex208730.93734.66734.750.003182.59101.8398.060.32
Grays CreekMC16078853.292exex147730.93734.1734.240.006592.9853.1175.510.44
Grays CreekMC16078808.55100exex449730.1735.12734.41735.390.005574.6147.58143.80.47
Grays CreekMC16078808.5550exex376730.1734.95733.76735.20.005474.38123.86133.750.46
Grays CreekMC16078808.5525exex327730.1734.81733.52735.060.005494.24105.47125.420.46
Grays CreekMC16078808.5510exex264730.1734.61733.18734.830.005013.8882.8394.140.43
Grays CreekMC16078808.555exex208730.1734.25732.85734.530.004894.3354.4144.930.42
Grays CreekMC16078808.552exex147730.1733.76732.42733.980.004333.7339.4627.570.39
Grays CreekMC16078790Culvert
Grays CreekMC16078770.73100exex449729.77734.46733.02734.520.0012.57352.56273.740.23
Grays CreekMC16078770.7350exex376729.77734.23732.58734.290.001062.55289.65268.290.23
Grays CreekMC16078770.7325exex327729.77734.05732.39734.120.001142.55241.48264.030.24
Grays CreekMC16078770.7310exex264729.77733.76732.13733.840.001362.63139.61160.630.26
APPENDIX C
HEC-RAS Results for Existing Conditions
C- 1
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16078770.735exex208729.77733.47731.86733.540.001372.48107.32130.670.25
Grays CreekMC16078770.732exex147729.77733.06731.52733.130.001352.2379.2894.40.24
Grays CreekMC16078713.4100exex562729.73733.52733.52734.20.013857.47118.24100.060.8
Grays CreekMC16078713.450exex471729.73733.31733.31733.970.014117.1698.7390.390.79
Grays CreekMC16078713.425exex409729.73733.15733.15733.790.014596.9584.3281.540.8
Grays CreekMC16078713.410exex329729.73732.94732.89733.520.014256.4668.470.50.78
Grays CreekMC16078713.45exex260729.73732.76733.240.012875.7956.6161.050.73
Grays CreekMC16078713.42exex184729.73732.45732.850.012715.1340.1844.650.7
Grays CreekMC16078679.2100exex562727.91733.5732.62733.670.003013.97212.39144.290.37
Grays CreekMC16078679.250exex471727.91733.34732.38733.490.002673.63194.1137.630.34
Grays CreekMC16078679.225exex409727.91733.21731.62733.340.00253.42178.11131.80.33
Grays CreekMC16078679.210exex329727.91733.01731.08733.130.002243.11155.51124.990.31
Grays CreekMC16078679.25exex260727.91732.81730.68732.910.002032.83131.23115.70.29
Grays CreekMC16078679.22exex184727.91732.47730.18732.560.001822.4896.7294.090.27
Grays CreekMC16078640Culvert
Grays CreekMC16078606.93100exex562727730.75730.7732.220.020449.7157.9135.130.98
Grays CreekMC16078606.9350exex471727730.56730.37731.730.017868.6854.2432.020.91
Grays CreekMC16078606.9325exex409727730.4730.13731.390.01639851.1429.790.86
Grays CreekMC16078606.9310exex329727729.92729.8730.870.020377.8342.0424.30.93
Grays CreekMC16078606.935exex260727729.77729.51730.450.015996.6239.2623.430.81
Grays CreekMC16078606.932exex184727729.56729.13729.980.011595.2435.1422.130.68
Grays CreekMC16078413.8100exex562725.49728.66728.23729.070.009745.35119.56930.65
Grays CreekMC16078413.850exex471725.49728.47728.01728.850.009795.05103.0582.490.64
Grays CreekMC16078413.825exex409725.49728.33727.87728.680.009774.891.9774.620.63
Grays CreekMC16078413.810exex329725.49728.36727.67728.580.005923.7894.4876.470.49
Grays CreekMC16078413.85exex260725.49728.05727.5728.260.007063.6573.5459.240.52
Grays CreekMC16078413.82exex184725.49727.67727.24727.850.009373.4753.1248.820.57
Grays CreekMC16078077.38100exex562721.33725.52725.52725.950.009326.47143.06144.690.65
Grays CreekMC16078077.3850exex471721.33725.4725.4725.810.00876.1126.79142.670.63
Grays CreekMC16078077.3825exex409721.33725.32725.32725.70.008285.83114.13141.080.61
Grays CreekMC16078077.3810exex329721.33724.84724.73725.530.015367.0359.6750.520.8
Grays CreekMC16078077.385exex260721.33724.73724.53725.230.011735.9554.3147.70.7
Grays CreekMC16078077.382exex184721.33724.54723.95724.870.008434.7645.8242.840.58
Grays CreekMC16077715.85100exex562718.42722.29721.79722.560.005435.1155.96109.890.51
Grays CreekMC16077715.8550exex471718.42722.06721.62722.320.005855.02131.8698.540.52
Grays CreekMC16077715.8525exex409718.42721.88721.48722.140.006284.98114.7890.830.54
Grays CreekMC16077715.8510exex329718.42721.6721.29721.880.007395.0290.6979.740.57
Grays CreekMC16077715.855exex260718.42721.31721.11721.610.009135.1168.9468.190.62
Grays CreekMC16077715.852exex184718.42720.91720.82721.270.012695.2445.0652.670.71
Grays CreekMC16077310.6100exex562714.69719.38719.970.00786.81117.5871.680.63
Grays CreekMC16077310.650exex471714.69719.13719.670.007566.39100.5763.90.61
Grays CreekMC16077310.625exex409714.69718.94719.440.007256.0389.3858.220.59
C- 2
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16077310.610exex329714.69718.71719.120.006425.476.7351.040.55
Grays CreekMC16077310.65exex260714.69718.48718.810.005544.7665.7943.890.5
Grays CreekMC16077310.62exex184714.69718.14718.370.004533.9552.7433.420.45
Grays CreekMC16076844.09100exex562711.02715.44715.44715.990.009767.32123.83103.450.69
Grays CreekMC16076844.0950exex471711.02715.27715.27715.80.009516.99107.195.350.68
Grays CreekMC16076844.0925exex409711.02715.13715.13715.650.009476.7894.1988.590.67
Grays CreekMC16076844.0910exex329711.02714.87714.87715.420.01026.6673.2474.410.69
Grays CreekMC16076844.095exex260711.02714.55714.55715.160.011866.6552.5154.880.72
Grays CreekMC16076844.092exex184711.02713.92713.84714.610.017846.7829.8820.610.85
Grays CreekMC16076613.19100exex562709.5713.31713.480.004124.21211.79161.410.44
Grays CreekMC16076613.1950exex471709.5713.12713.290.004354.14182154.370.44
Grays CreekMC16076613.1925exex409709.5712.99713.160.004464.05161.91149.440.44
Grays CreekMC16076613.1910exex329709.5712.82712.980.00443.85137.1143.110.44
Grays CreekMC16076613.195exex260709.5712.64712.80.004443.67112.12136.440.43
Grays CreekMC16076613.192exex184709.5712.37711.63712.540.004913.5576.81126.420.45
Grays CreekMC16076371.1100exex562707.38711.95711.65712.320.006996.03164.5127.260.58
Grays CreekMC16076371.150exex471707.38711.78711.4712.120.00665.66143.1117.20.56
Grays CreekMC16076371.125exex409707.38711.6711.27711.940.006795.52123.31107.070.56
Grays CreekMC16076371.110exex329707.38711.29711711.660.007745.4993.0689.390.59
Grays CreekMC16076371.15exex260707.38710.98710.73711.370.008845.4167.9571.470.61
Grays CreekMC16076371.12exex184707.38710.63710.11710.980.009154.9545.9152.790.61
Grays CreekMC16076130.57100exex562705.88709.74709.74710.460.013057.74108.880.490.78
Grays CreekMC16076130.5750exex471705.88709.47709.47710.210.014027.5788.9170.90.79
Grays CreekMC16076130.5725exex409705.88709.34710.010.013257.1279.71660.76
Grays CreekMC16076130.5710exex329705.88709.22709.730.010526.1672.1561.670.68
Grays CreekMC16076130.575exex260705.88709.09709.480.008235.2764.6257.050.59
Grays CreekMC16076130.572exex184705.88708.79709.090.007244.5248.9245.920.54
Grays CreekMC16075904.4100exex562704.86709.44709.510.001433.13344.51229.010.28
Grays CreekMC16075904.450exex471704.86709.16709.240.001663.22282.81212.320.29
Grays CreekMC16075904.425exex409704.86708.95709.040.001893.3239.08192.670.31
Grays CreekMC16075904.410exex329704.86708.64708.740.002283.41183.94165.020.34
Grays CreekMC16075904.45exex260704.86708.32708.450.002863.56134.59148.110.37
Grays CreekMC16075904.42exex184704.86707.93708.060.00313.3682.6169.680.37
Grays CreekMC16075627.3100exex696703707.6708.510.012299.28117.9556.070.81
Grays CreekMC16075627.350exex584703707.3708.150.012138.77102.1351.410.79
Grays CreekMC16075627.325exex508703707.13707.880.011298.2193.548.670.76
Grays CreekMC16075627.310exex410703706.91707.520.009677.2883.1745.180.69
Grays CreekMC16075627.35exex325703706.69707.170.008136.3873.4641.710.63
Grays CreekMC16075627.32exex232703706.04706.530.010496.2449.6731.980.69
Grays CreekMC16075283.24100exex696699.05703.55703.55704.410.012028.51125.8179.730.78
Grays CreekMC16075283.2450exex584699.05703.31703.31704.120.011768.05107.7973.860.76
Grays CreekMC16075283.2425exex508699.05703.08703.08703.90.012417.991.5167.130.77
Grays CreekMC16075283.2410exex410699.05702.69702.69703.540.014437.8268.0352.370.82
C- 3
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16075283.245exex325699.05702.22702.22703.140.018637.8847.6634.820.9
Grays CreekMC16075283.242exex232699.05702.03701.72702.60.012846.1941.6627.590.74
Grays CreekMC16074778.13100exex988692.04701.3701.350.000492.86678.4216.920.17
Grays CreekMC16074778.1350exex830692.04700.25700.340.000913.56465.77188.070.23
Grays CreekMC16074778.1325exex723692.04699.48699.630.00164.38329.59162.390.3
Grays CreekMC16074778.1310exex585692.04698.47698.780.003455.73189.5114.970.43
Grays CreekMC16074778.135exex465692.04697.54698.10.00667105.0862.380.58
Grays CreekMC16074778.132exex331692.04696.57697.230.009737.2362.7734.460.68
Grays CreekMC16074631.73100exex988691.71701.06696.31701.230.000743.43317.72275.260.22
Grays CreekMC16074631.7350exex830691.71700.02695.92700.190.000883.4267.62196.880.23
Grays CreekMC16074631.7325exex723691.71699.27695.65699.440.001023.38231.79173.650.24
Grays CreekMC16074631.7310exex585691.71698.25695.23698.420.001293.37184.72144.310.26
Grays CreekMC16074631.735exex465691.71697.3694.83697.470.001713.3714493.890.29
Grays CreekMC16074631.732exex331691.71696.11694.28696.30.002843.4596.2838.780.36
Grays CreekMC16074500Culvert
Grays CreekMC16074273.8100exex988688.59695.17692.26695.30.000763.1348.6354.820.22
Grays CreekMC16074273.850exex830688.59694.21691.95694.350.001123.37275.61330.430.26
Grays CreekMC16074273.825exex723688.59693.68691.73693.840.001373.48235.64113.190.28
Grays CreekMC16074273.810exex585688.59693.04691.42693.210.001773.6187.0295.050.31
Grays CreekMC16074273.85exex465688.59692.42691.09692.610.002473.83140.1772.430.36
Grays CreekMC16074273.82exex331688.59691.65690.68691.860.003633.9693.851.90.42
Grays CreekMC16074190.56100exex988686.64692.02691.8694.440.0218313.5108.6343.381.1
Grays CreekMC16074190.5650exex830686.64692691.84693.680.0152911.27107.9539.470.92
Grays CreekMC16074190.5625exex723686.64691.99691.63693.260.011719.84107.2738.520.8
Grays CreekMC16074190.5610exex585686.64691.61692.660.010598.8493.3235.330.75
Grays CreekMC16074190.565exex465686.64691.08692.020.010958.2475.8531.310.75
Grays CreekMC16074190.562exex331686.64690.26691.140.013817.8552.3725.620.81
Grays CreekMC16074084.19100exex1745685.39691.81692.940.007249.4268.98151.170.71
Grays CreekMC16074084.1950exex1456685.39691.65692.570.005938.34246.06140.840.64
Grays CreekMC16074084.1925exex1256685.39691.08691.08692.230.007918.93176.9103.60.73
Grays CreekMC16074084.1910exex1011685.39690.68689.89691.720.00778.29140.3676.980.71
Grays CreekMC16074084.195exex796685.39690.21691.080.007397.51111.2746.850.68
Grays CreekMC16074084.192exex540685.39689.43690.070.00746.4484.7130.80.66
Grays CreekMC16073780.83100exex1745682.81690.08690.08690.920.005448.03345.2251.90.62
Grays CreekMC16073780.8350exex1456682.81689.44689.44690.520.007438.61219.53160.320.7
Grays CreekMC16073780.8325exex1256682.81689.85688.27690.390.003586.32292.8200.390.5
Grays CreekMC16073780.8310exex1011682.81689.27687.78689.870.004296.38193.13142.980.53
Grays CreekMC16073780.835exex796682.81688.68689.240.004616.02133.8852.720.54
Grays CreekMC16073780.832exex540682.81687.92686.53688.320.004295.07106.5833.660.5
Grays CreekMC16073349.8100exex1745680.28687.28687.840.004127.23463.69285.30.54
Grays CreekMC16073349.850exex1456680.28686.83686.83687.560.005187.67341.37266.380.6
Grays CreekMC16073349.825exex1256680.28685.68685.68687.510.0148410.91121.4938.330.98
C- 4
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16073349.810exex1011680.28685.32685.16686.780.013449.72107.9536.40.91
Grays CreekMC16073349.85exex796680.28684.9684.65686.080.012768.7193.2834.190.87
Grays CreekMC16073349.82exex540680.28684.13683.99685.10.015357.8968.4630.090.91
Grays CreekMC16072932.29100exex1774676686.97687.120.000713.84814.35252.160.24
Grays CreekMC16072932.2950exex1480676686.53686.670.000693.64705239.520.23
Grays CreekMC16072932.2925exex1276676685.8685.980.000913.91538.61218.380.26
Grays CreekMC16072932.2910exex1027676684.74685.030.00154.51320.83183.850.33
Grays CreekMC16072932.295exex808676683.85684.170.001924.57187.5347.880.36
Grays CreekMC16072932.292exex548676682.59682.860.002374.19132.139.520.38
Grays CreekMC16072824.29100exex1774676.68686.09681.71686.520.00155.33449.37327.840.33
Grays CreekMC16072824.2950exex1480676.68685.83681.17686.150.001174.62374.03132.10.29
Grays CreekMC16072824.2925exex1276676.68685.07680.78685.380.001274.49297.0586.840.3
Grays CreekMC16072824.2910exex1027676.68683.97680.26684.260.001474.31241.7947.050.31
Grays CreekMC16072824.295exex808676.68682.93679.74683.190.001744.12196.341.330.33
Grays CreekMC16072824.292exex548676.68681.54679.08681.760.001813.78144.8434.680.33
Grays CreekMC16072800Culvert
Grays CreekMC16072758.16100exex1774675.97683.8681.71684.810.005138.08219.4647.170.56
Grays CreekMC16072758.1650exex1480675.97683.52681.05684.290.004167.06209.7545.180.5
Grays CreekMC16072758.1625exex1276675.97683.09680.58683.750.003956.55194.942.120.49
Grays CreekMC16072758.1610exex1027675.97682.45679.936830.003795.93173.1337.650.47
Grays CreekMC16072758.165exex808675.97681.79679.33682.240.003545.36150.7833.430.44
Grays CreekMC16072758.162exex548675.97680.79678.55681.120.003054.59119.4929.370.4
Grays CreekMC16072609.96100exex1774675.64682.26682.26683.740.0079910.43260.24126.780.77
Grays CreekMC16072609.9650exex1480675.64681.53681.53683.140.0098210.57186.7983.870.83
Grays CreekMC16072609.9625exex1276675.64681.24680.96682.670.009299.88163.6473.510.8
Grays CreekMC16072609.9610exex1027675.64680.86680.21682.020.008278.82138.3360.350.74
Grays CreekMC16072609.965exex808675.64680.36679.67681.330.007937.97112.1545.610.71
Grays CreekMC16072609.962exex548675.64679.68680.360.007116.6386.7133.030.65
Grays CreekMC16072186.79100exex1797672.95677.72678.920.011679.57256.6123.220.87
Grays CreekMC16072186.7950exex1500672.95677.51677.51678.530.010468.72231.39121.140.82
Grays CreekMC16072186.7925exex1293672.95677.2677.2678.230.011458.59195.3111.460.84
Grays CreekMC16072186.7910exex1040672.95676.84676.81677.80.012018.12157.4598.460.85
Grays CreekMC16072186.795exex818672.95676.57676.41677.350.011027.28131.988.610.8
Grays CreekMC16072186.792exex554672.95676.1675.76676.70.010586.2494.5171.830.76
Grays CreekMC16071554.73100exex2139667.11674.83675.510.003176.89398.35149.530.49
Grays CreekMC16071554.7350exex1788667.11674.08674.810.003846.96290.85135.740.52
Grays CreekMC16071554.7325exex1534667.11673.51674.210.004136.71241.6368.680.53
Grays CreekMC16071554.7310exex1220667.11672.75673.390.004696.39193.956.40.55
Grays CreekMC16071554.735exex952667.11671.98672.570.005666.14154.9445.660.59
Grays CreekMC16071554.732exex637667.11670.88671.420.006915.89108.239.670.63
Grays CreekMC16071384.38100exex2146663.78674.42675.020.00256.26391.46176.280.43
Grays CreekMC16071384.3850exex1793663.78673.66674.220.002726305.1561.690.44
C- 5
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16071384.3825exex1538663.78673.06673.570.00295.77269.1257.590.45
Grays CreekMC16071384.3810exex1223663.78672.2672.670.003365.5222.2251.780.47
Grays CreekMC16071384.385exex954663.78671.33671.770.00365.31179.7546.130.47
Grays CreekMC16071384.382exex638663.78670.16670.540.003714.9130.2938.550.47
Grays CreekMC16071060.92100exex2146662.95670.61670.61673.250.0130413.14173.6441.080.95
Grays CreekMC16071060.9250exex1793662.95669.86669.86672.320.0144312.64146.2632.90.97
Grays CreekMC16071060.9225exex1538662.95669.37669.32671.60.0147811.99130.7331.330.97
Grays CreekMC16071060.9210exex1223662.95669668.65670.670.012310.36119.3730.120.87
Grays CreekMC16071060.925exex954662.95668.56669.820.010699106.4228.690.8
Grays CreekMC16071060.922exex638662.95667.8668.670.009437.4685.5526.260.73
Grays CreekMC16070701.4100exex2146660.76668.53667.22669.370.004447.68376.47206.30.57
Grays CreekMC16070701.450exex1793660.76667.94666.62668.760.004797.42283.7107.190.58
Grays CreekMC16070701.425exex1538660.76667.5668.270.005067.17239.1791.270.59
Grays CreekMC16070701.410exex1223660.76666.88667.580.005376.72190.1868.930.59
Grays CreekMC16070701.45exex954660.76666.28666.880.005716.22154.3651.880.59
Grays CreekMC16070701.42exex638660.76665.4665.880.006015.57114.5841.340.59
Grays CreekMC16070237.59100exex2146657.62664.27663.94666.070.0123810.75199.8146.10.9
Grays CreekMC16070237.5950exex1793657.62663.89663.43665.390.011679.84182.2744.880.86
Grays CreekMC16070237.5925exex1538657.62663.49664.840.01149.34164.5943.030.84
Grays CreekMC16070237.5910exex1223657.62662.94664.090.010928.63141.6940.50.81
Grays CreekMC16070237.595exex954657.62662.42663.380.010227.86121.438.130.78
Grays CreekMC16070237.592exex638657.62661.65662.370.00966.8493.2234.540.73
Grays CreekMC16069865.85100exex2146655.26662.53663.350.004037.38356.97194.530.54
Grays CreekMC16069865.8550exex1793655.26661.91662.680.004357.1270.272.980.55
Grays CreekMC16069865.8525exex1538655.26661.46662.150.00446.72238.8566.80.55
Grays CreekMC16069865.8510exex1223655.26660.84661.440.004526.19200.3858.340.54
Grays CreekMC16069865.855exex954655.26660.23660.740.004795.71167.1849.890.54
Grays CreekMC16069865.852exex638655.26659.23659.670.005395.28120.8243.670.56
Grays CreekMC16069370.09100exex2271650.79658.11657.68660.070.011211.25206.0751.580.88
Grays CreekMC16069370.0950exex1883650.79657.54657.14659.250.011410.51180.5843.190.87
Grays CreekMC16069370.0925exex1612650.79657.07656.71658.640.0120610.04160.7240.860.88
Grays CreekMC16069370.0910exex1270650.79656.39656.05657.780.012949.49133.8937.720.89
Grays CreekMC16069370.095exex980650.79655.75655.44656.970.012998.83110.9635.010.87
Grays CreekMC16069370.092exex652650.79655.08654.6655.930.010937.3988.2332.10.79
Grays CreekMC16068575.35100exex2271645.6654.01654.90.003837.66320.5668.320.54
Grays CreekMC16068575.3550exex1883645.6653.38654.150.003767.08280.3862.020.52
Grays CreekMC16068575.3525exex1612645.6652.98653.640.003536.54256.1459.030.5
Grays CreekMC16068575.3510exex1270645.6652.39652.910.003285.82222.454.570.47
Grays CreekMC16068575.355exex980645.6651.73652.150.003245.24187.9949.610.46
Grays CreekMC16068575.352exex652645.6650.52650.890.003944.9133.0842.090.49
Grays CreekMC16068144.13100exex2271642.72653.54653.70.001513.71905.75264.650.24
Grays CreekMC16068144.1350exex1883642.72652.69652.870.001863.81698.17222.930.26
Grays CreekMC16068144.1325exex1612642.72652.23652.40.001913.68600.47200.310.26
C- 6
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16068144.1310exex1270642.72651.57651.730.001963.46478.08169.560.26
Grays CreekMC16068144.135exex980642.72650.76650.920.002253.35355.47133.10.27
Grays CreekMC16068144.132exex652642.72649.03649.240.003493.71185.5969.880.34
Grays CreekMC16068029.68100exex2271642.02653.45648.94653.590.000583.691171.58386.950.22
Grays CreekMC16068029.6850exex1883642.02652.56648.39652.740.000753.9851.8331.880.25
Grays CreekMC16068029.6825exex1612642.02652.08647.99652.260.000793.83698.93302.030.25
Grays CreekMC16068029.6810exex1270642.02651.4647.44651.580.000823.65513.97242.130.25
Grays CreekMC16068029.685exex980642.02650.57646.91650.760.00093.49345.41165.310.26
Grays CreekMC16068029.682exex652642.02648.81646.23649.010.001273.51185.546.880.3
Grays CreekMC16068020Bridge
Grays CreekMC16068005.73100exex2271642.02653.12648.98653.30.000734.021047.92366.640.25
Grays CreekMC16068005.7350exex1883642.02651.99648.51652.260.001164.59673.95296.70.3
Grays CreekMC16068005.7325exex1612642.02651.36648651.660.001364.68503.6238.170.32
Grays CreekMC16068005.7310exex1270642.02650.54647.45650.850.001544.56340.44162.440.33
Grays CreekMC16068005.735exex980642.02649.64646.91649.930.001754.34232.5375.720.35
Grays CreekMC16068005.732exex652642.02648.48646.22648.70.001723.79172.1244.390.34
Grays CreekMC16067929.65100exex2943642.31652.87653.180.001375.4876.41257.170.33
Grays CreekMC16067929.6550exex2424642.31651.53652.050.002566.55561.2212.840.44
Grays CreekMC16067929.6525exex2071642.31650.47651.310.004567.79355.63169.080.57
Grays CreekMC16067929.6510exex1617642.31649.16648.38650.340.008198.78192.0562.280.74
Grays CreekMC16067929.655exex1239642.31648.29649.40.010198.46147.0545.390.79
Grays CreekMC16067929.652exex816642.31647.26648.190.011717.77105.0637.590.82
Grays CreekMC16067835.28100exex2943642.63652.9653.060.000543.721125.9217.430.22
Grays CreekMC16067835.2850exex2424642.63651.65651.830.000743.92863.8199.330.25
Grays CreekMC16067835.2825exex2071642.63650.75650.950.000944.07691.15181.40.27
Grays CreekMC16067835.2810exex1617642.63649.57649.810.001314.24491.58158.10.31
Grays CreekMC16067835.285exex1239642.63648.55648.810.001754.3344.02128.070.35
Grays CreekMC16067835.282exex816642.63647.3647.550.002444.12212.4586.950.39
Grays CreekMC16067730.39100exex2943642.67652.85646.34653.010.000423.21916.4157.120.19
Grays CreekMC16067730.3950exex2424642.67651.61645.93651.750.000473.07790.15127.10.19
Grays CreekMC16067730.3925exex2071642.67650.71645.63650.840.000522.97698.27119.620.2
Grays CreekMC16067730.3910exex1617642.67649.54645.21649.660.000582.79579.35107.590.21
Grays CreekMC16067730.395exex1239642.67648.53644.83648.630.000572.57481.395.650.2
Grays CreekMC16067730.392exex816642.67647.28644.34647.350.000572.23366.0389.20.19
Grays CreekMC16067654Culvert
Grays CreekMC16067573.81100exex2943642.38648.74646.61649.40.003126.58468.16210.190.49
Grays CreekMC16067573.8150exex2424642.38648.35646.19648.870.002685.82434.51194.70.44
Grays CreekMC16067573.8125exex2071642.38648.07645.86648.490.002355.26409.9183.320.41
Grays CreekMC16067573.8110exex1617642.38647.63645.41647.940.001964.51371.41152.440.37
Grays CreekMC16067573.815exex1239642.38647.16644.99647.390.001663.87330.54141.830.34
Grays CreekMC16067573.812exex816642.38646.42644.42646.570.00143.11267.67125.380.3
C- 7
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16067347.61100exex2943641.77647.95648.560.00426.89618.32240.260.55
Grays CreekMC16067347.6150exex2424641.77647.55648.110.004156.48524.66231.550.54
Grays CreekMC16067347.6125exex2071641.77647.24647.770.004156.18454.42224.220.53
Grays CreekMC16067347.6110exex1617641.77646.81647.280.004065.69360.38208.660.52
Grays CreekMC16067347.615exex1239641.77646.37646.780.003965.18273.36190.610.5
Grays CreekMC16067347.612exex816641.77645.79646.070.003394.22195.2276.430.45
Grays CreekMC16066835.01100exex4736639647.3647.520.001464.92042.66594.610.34
Grays CreekMC16066835.0150exex3904639646.93647.130.001344.511828.22583.80.32
Grays CreekMC16066835.0125exex3346639646.64646.810.001274.251655.51574.940.31
Grays CreekMC16066835.0110exex2623639646.26646.40.001113.81439.07563.640.29
Grays CreekMC16066835.015exex2012639645.886460.000953.341229.1534.740.26
Grays CreekMC16066835.012exex1330639645.39645.470.000692.66978.79494.080.22
Grays CreekMC16066070.44100exex4736637.41646.76646.850.000512.892350.52481.170.2
Grays CreekMC16066070.4450exex3904637.41646.49646.570.000412.512225.14471.190.18
Grays CreekMC16066070.4425exex3346637.41646.26646.310.000352.262113.88462.160.16
Grays CreekMC16066070.4410exex2623637.41645.97646.010.000261.881983.38452.020.14
Grays CreekMC16066070.445exex2012637.41645.66645.690.000191.551846.02447.280.12
Grays CreekMC16066070.442exex1330637.41645.26645.280.000111.131667.8441.060.09
Grays CreekMC16065574.57100exex4736636.38646.55646.620.000433.243343.2680.730.19
Grays CreekMC16065574.5750exex3904636.38646.33646.380.000342.83194.37675.050.17
Grays CreekMC16065574.5725exex3346636.38646.12646.160.000282.523050.55669.520.15
Grays CreekMC16065574.5710exex2623636.38645.87645.90.00022.12884.3665.050.13
Grays CreekMC16065574.575exex2012636.38645.59645.610.000141.732699.86662.050.11
Grays CreekMC16065574.572exex1330636.38645.22645.238.2E-051.272454.84658.050.08
Grays CreekMC16065197.43100exex4782635.71646.53646.548.4E-051.124404.88784.80.08
Grays CreekMC16065197.4350exex3940635.71646.31646.336.4E-050.964237.93779.110.07
Grays CreekMC16065197.4325exex3376635.71646.1646.115.3E-050.864074.42773.490.06
Grays CreekMC16065197.4310exex2646635.71645.86645.863.8E-050.73885.97768.720.05
Grays CreekMC16065197.435exex2029635.71645.58645.592.7E-050.573675.61764.760.04
Grays CreekMC16065197.432exex1342635.71645.22645.221.5E-050.413395.49759.560.03
Grays CreekMC16064942.8100exex4782635.07646.53641.56646.531.3E-050.677053.6768.650.04
Grays CreekMC16064942.850exex3940635.07646.31640.78646.329E-060.576889.75762.720.03
Grays CreekMC16064942.825exex3376635.07646.1640.24646.117E-060.56729.52756.870.03
Grays CreekMC16064942.810exex2646635.07645.86639.47645.865E-060.46544.9751.770.02
Grays CreekMC16064942.85exex2029635.07645.58638.77645.583E-060.326339.06747.420.02
Grays CreekMC16064942.82exex1342635.07645.22637.89645.222E-060.226065.29741.110.01
Grays CreekMC16064909Culvert
Grays CreekMC16064871.21100exex4782635.14644.15640.94644.163E-060.815928.13789.990.05
Grays CreekMC16064871.2150exex3940635.14644.15640.23644.152E-060.675926.74789.970.04
Grays CreekMC16064871.2125exex3376635.14644.14639.73644.152E-060.585925.92789.960.04
Grays CreekMC16064871.2110exex2646635.14644.14639.05644.151E-060.455925.05789.940.03
Grays CreekMC16064871.215exex2029635.14644.14638.41644.141E-060.355924.52789.930.02
Grays CreekMC16064871.212exex1342635.14644.14637.62644.1400.235924.04789.920.01
C- 8
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC16064704.33100exex4782635644.14638.02644.167E-060.955043782.820.07
Grays CreekMC16064704.3350exex3940635644.14637.78644.154E-060.785043782.820.05
Grays CreekMC16064704.3325exex3376635644.14637.62644.153E-060.675043782.820.05
Grays CreekMC16064704.3310exex2646635644.14637.38644.152E-060.535043782.820.04
Grays CreekMC16064704.335exex2029635644.14637.13644.141E-060.45043782.820.03
Grays CreekMC16064704.332exex1342635644.14636.81644.141E-060.275043782.820.02
Grays CreekMC15059690.02100exex1507640.13643.47643.47644.950.017499.77154.2652.771.01
Grays CreekMC15059690.0250exex1193640.13643.03643.03644.310.018169.08131.4452.011.01
Grays CreekMC15059690.0225exex976640.13642.71642.71643.840.018828.52114.6151.611.01
Grays CreekMC15059690.0210exex730640.13642.31642.31643.250.019847.7694.0851.121.01
Grays CreekMC15059690.025exex528640.13641.95641.95642.70.020896.9875.6350.431
Grays CreekMC15059690.022exex362640.13641.59641.59642.20.02236.2557.9248.051
Grays CreekMC15059289.29100exex1507602606.43607.050.009256.33238.2698.990.72
Grays CreekMC15059289.2950exex1193602606.16606.650.008315.63212.0597.020.67
Grays CreekMC15059289.2925exex976602606606.380.00714.98196.0495.840.61
Grays CreekMC15059289.2910exex730602605.716060.006294.31169.2793.840.57
Grays CreekMC15059289.295exex528602605.38605.60.006263.83138.0391.450.55
Grays CreekMC15059289.292exex362602605.04604.61605.220.006433.35107.9589.090.54
Grays CreekMC15058967.26100exex1507598.34604.42604.990.004636.04249.9669.450.55
Grays CreekMC15058967.2650exex1193598.34603.37604.050.007836.6180.8762.640.68
Grays CreekMC15058967.2625exex976598.34602.67603.440.011757.07138.0158.560.81
Grays CreekMC15058967.2610exex730598.34602.01601.91602.820.017037.23100.9154.870.94
Grays CreekMC15058967.265exex528598.34601.52601.47602.270.01938775.4847.550.98
Grays CreekMC15058967.262exex362598.34601.05601.05601.720.021386.654.8140.521
Grays CreekMC15058657.09100exex1507595.76604.07604.260.001093.51447.84232.420.28
Grays CreekMC15058657.0950exex1193595.76602.84603.050.001413.65327.2175.110.31
Grays CreekMC15058657.0925exex976595.76601.95602.170.00173.7263.6268.280.33
Grays CreekMC15058657.0910exex730595.76600.97601.180.002183.67198.8163.060.36
Grays CreekMC15058657.095exex528595.76600.17600.360.002633.51150.2758.850.39
Grays CreekMC15058657.092exex362595.76599.43599.60.00293.31109.3250.40.4
Grays CreekMC15058540.22100exex1717595.42603.95604.150.000873.8570.66246.350.26
Grays CreekMC15058540.2250exex1355595.42602.62602.880.001424.15349.75116.960.32
Grays CreekMC15058540.2225exex1104595.42601.68601.950.00194.21267.971.270.36
Grays CreekMC15058540.2210exex829595.42600.58600.870.002944.3193.6664.470.43
Grays CreekMC15058540.225exex614595.42599.59599.920.005094.62132.9156.860.53
Grays CreekMC15058540.222exex417595.42598.43598.930.011885.6374.0944.620.77
Grays CreekMC15058415.47100exex1717594.33603.91597.97604.060.000363.13571.66276.230.18
Grays CreekMC15058415.4750exex1355594.33602.6597.53602.730.00042.98478.13250.650.18
Grays CreekMC15058415.4725exex1104594.33601.66597.19601.780.000412.8412.72236.430.18
Grays CreekMC15058415.4710exex829594.33600.57596.78600.660.000432.55339.29112.90.18
Grays CreekMC15058415.475exex614594.33599.58596.42599.660.000452.32275.8199.70.18
Grays CreekMC15058415.472exex417594.33598.47595.99598.540.000512.1207.2884.820.19
C- 9
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC15058350Culvert
Grays CreekMC15058314.6100exex1717593.74601.28597.99601.630.001084.9382.37183.790.33
Grays CreekMC15058314.650exex1355593.74600.71597.44600.980.000924.25345.22170.710.3
Grays CreekMC15058314.625exex1104593.74600.23597.06600.440.000813.79313.83153.450.28
Grays CreekMC15058314.610exex829593.74599.57596.56599.730.000713.25272.35104.520.26
Grays CreekMC15058314.65exex614593.74598.88596.15990.000652.83229.1379.640.24
Grays CreekMC15058314.62exex417593.74597.99595.63598.080.000672.46174.9664.990.23
Grays CreekMC15058053.9100exex1717593.75600.83601.240.0025.31391.19224.550.39
Grays CreekMC15058053.950exex1355593.75600.26600.620.001934.87294.08113.190.37
Grays CreekMC15058053.925exex1104593.75599.83600.120.001724.34260.6962.550.35
Grays CreekMC15058053.910exex829593.75599.24599.450.001523.74224.8258.830.32
Grays CreekMC15058053.95exex614593.75598.57598.740.001483.3186.9354.640.31
Grays CreekMC15058053.92exex417593.75597.67597.810.001632.97140.4148.960.31
Grays CreekMC15057618.94100exex1717591.92600.44600.650.000843.96642.77346.70.26
Grays CreekMC15057618.9450exex1355591.92599.89600.060.000763.58490.32189.330.24
Grays CreekMC15057618.9425exex1104591.92599.48599.630.000683.26418.68162.420.23
Grays CreekMC15057618.9410exex829591.92598.92599.040.000582.81338.59125.120.21
Grays CreekMC15057618.945exex614591.92598.28598.370.00052.42271.5483.140.19
Grays CreekMC15057618.942exex417591.92597.39597.450.000452.02212.6560.10.17
Grays CreekMC15057191.19100exex1717591.8600.27600.370.000432.99956.65484.010.19
Grays CreekMC15057191.1950exex1355591.8599.69599.790.000472.98707.4372.40.19
Grays CreekMC15057191.1925exex1104591.8599.28599.380.000462.85565.65314.840.19
Grays CreekMC15057191.1910exex829591.8598.73598.820.000432.6414.97234.250.18
Grays CreekMC15057191.195exex614591.8598.1598.180.000382.29301.22105.030.17
Grays CreekMC15057191.192exex417591.8597.24597.290.000311.84240.6764.10.15
Grays CreekMC15056685.6100exex1717591.61600.18595.77600.210.00022.091435.37568.770.13
Grays CreekMC15056685.650exex1355591.61599.59595.19599.630.00021.991140.94459.40.13
Grays CreekMC15056685.625exex1104591.61599.18594.76599.220.00021.91958.92423.720.13
Grays CreekMC15056685.610exex829591.61598.63594.26598.660.00021.81738.75367.560.13
Grays CreekMC15056685.65exex614591.61598593.85598.030.00021.69538.76265.50.12
Grays CreekMC15056685.62exex417591.61597.13593.41597.160.00021.52359.56158.690.12
Grays CreekMC4028255.99100exex6952552.91568.4568.890.001036.161664.49641.940.34
Grays CreekMC4028255.9950exex5657552.91566.97567.690.001566.87928.05342.740.41
Grays CreekMC4028255.9925exex4818552.91566.24566.90.001586.51746.83153.910.4
Grays CreekMC4028255.9910exex3756552.91564.93565.490.001416625.7379.740.38
Grays CreekMC4028255.995exex2869552.91563.56564.030.001215.45525.9568.420.35
Grays CreekMC4028255.992exex1937552.91561.79562.140.001094.72410.5361.950.32
Grays CreekMC4027951.47100exex6952552.77567.75568.530.001177.221135.75331.630.36
Grays CreekMC4027951.4750exex5657552.77566.63567.270.001086.51942.55150.460.34
Grays CreekMC4027951.4725exex4818552.77565.94566.490.0016845.1130.90.33
Grays CreekMC4027951.4710exex3756552.77564.65565.10.000975.41699.7694.470.32
Grays CreekMC4027951.475exex2869552.77563.32563.680.000914.83593.472.950.3
Grays CreekMC4027951.472exex1937552.77561.58561.840.000764.09473.1965.820.27
C- 10
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4027584.19100exex6952552.6567.48568.070.0016.521320.41258.10.34
Grays CreekMC4027584.1950exex5657552.6566.25566.860.001136.431016.8232.660.35
Grays CreekMC4027584.1925exex4818552.6565.54566.10.001116.07864.11193.450.34
Grays CreekMC4027584.1910exex3756552.6564.24564.720.001095.58675.5795.750.33
Grays CreekMC4027584.195exex2869552.6562.94563.330.0015574.2874.060.32
Grays CreekMC4027584.192exex1937552.6561.25561.530.000894.27453.9568.240.29
Grays CreekMC4027186.95100exex6952552.42566.64567.570.001498.041082228.070.41
Grays CreekMC4027186.9550exex5657552.42565.41566.30.001597.72828.29176.020.42
Grays CreekMC4027186.9525exex4818552.42564.83565.590.001447.07735.58142.770.4
Grays CreekMC4027186.9510exex3756552.42563.58564.220.001416.459988.490.38
Grays CreekMC4027186.955exex2869552.42562.34562.850.00145.74500.5371.370.37
Grays CreekMC4027186.952exex1937552.42560.72561.10.00134.93393.0363.780.35
Grays CreekMC4026615.37100exex6952552.16564.89566.390.002719.89770.27121.060.54
Grays CreekMC4026615.3750exex5657552.16563.87565.130.002599.02656.17102.140.52
Grays CreekMC4026615.3725exex4818552.16563.62564.590.002067.9631.8297.640.46
Grays CreekMC4026615.3710exex3756552.16562.47563.250.0027.1531.2676.330.45
Grays CreekMC4026615.375exex2869552.16561.27561.90.001936.39448.9765.610.43
Grays CreekMC4026615.372exex1937552.16559.77560.230.001765.48353.4461.410.4
Grays CreekMC4026412.36100exex6952552.07562.22561.77565.330.0085214.15491.5770.310.92
Grays CreekMC4026412.3650exex5657552.07562.29564.310.0054611.4496.7671.620.74
Grays CreekMC4026412.3625exex4818552.07562.73564.040.003279.17529.2274.820.57
Grays CreekMC4026412.3610exex3756552.07561.65562.720.003188.28453.6265.710.56
Grays CreekMC4026412.365exex2869552.07560.5561.390.003177.57379.0363.290.55
Grays CreekMC4026412.362exex1937552.07559.05559.740.003156.67290.459.080.53
Grays CreekMC4025885.96100exex6952551563.34563.60.000775.262143.7579.10.29
Grays CreekMC4025885.9650exex5657551561.89562.460.001737.091308.13573.550.42
Grays CreekMC4025885.9625exex4818551560.41558.495620.0045310.16520.29311.710.67
Grays CreekMC4025885.9610exex3756551559.43557.53560.750.004319.24406.4562.640.64
Grays CreekMC4025885.965exex2869551558.4559.480.004088.35343.5759.60.61
Grays CreekMC4025885.962exex1937551556.82557.730.004597.65253.1855.460.63
Grays CreekMC4025517.61100exex6952547.9563.26563.40.000323.683142.88535.850.2
Grays CreekMC4025517.6150exex5657547.9561.91562.080.000433.862425.72526.690.22
Grays CreekMC4025517.6125exex4818547.9560.95561.150.000544.061925.46514.180.24
Grays CreekMC4025517.6110exex3756547.9559.6559.870.000794.361253.58453.270.29
Grays CreekMC4025517.615exex2869547.9558.24558.550.001094.48749.47287.050.32
Grays CreekMC4025517.612exex1937547.9556.23556.570.001784.64417.8597.030.39
Grays CreekMC4025219.96100exex6952547.19563.1563.290.000384.342734.7493.640.21
Grays CreekMC4025219.9650exex5657547.19561.7561.940.00054.62055.82474.680.24
Grays CreekMC4025219.9625exex4818547.19560.68560.970.000634.871580.69455.810.27
Grays CreekMC4025219.9610exex3756547.19559.2559.60.000935.32948.37374.250.31
Grays CreekMC4025219.965exex2869547.19557.76558.20.001165.33538.0570.410.34
Grays CreekMC4025219.962exex1937547.19555.79556.140.001154.76406.6363.090.33
C- 11
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4024999.84100exex6827546.29562.24556.35562.990.001366.95982.5198.560.39
Grays CreekMC4024999.8450exex5552546.29561.01555.34561.650.001316.43863.495.140.38
Grays CreekMC4024999.8425exex4724546.29560.13554.62560.690.001286.05780.5392.630.37
Grays CreekMC4024999.8410exex3682546.29558.88553.62559.350.001185.5668.8986.380.35
Grays CreekMC4024999.845exex2810546.29557.53552.67557.920.001125.04557.1478.740.33
Grays CreekMC4024999.842exex1898546.29555.56551.48555.880.00114.58414.0367.040.33
Grays CreekMC4024960Bridge
Grays CreekMC4024940.17100exex6827546562.13555.66562.880.000997.111175.97176.060.35
Grays CreekMC4024940.1750exex5552546560.94554.64561.570.000926.471013.23159.630.33
Grays CreekMC4024940.1725exex4724546560.07553.91560.620.000886.01895.98147.180.32
Grays CreekMC4024940.1710exex3682546558.83552.92559.280.000825.35732.52128.630.3
Grays CreekMC4024940.175exex2810546557.5551.96557.850.000784.75601.0282.370.29
Grays CreekMC4024940.172exex1898546555.53550.79555.80.000844.18454.3268.080.28
Grays CreekMC4024616.92100exex6827545.73561.93562.50.000876.721853.28354.350.32
Grays CreekMC4024616.9250exex5552545.73560.68561.250.000936.521428.65323.660.32
Grays CreekMC4024616.9225exex4724545.73559.75560.320.000976.331137.92296.490.33
Grays CreekMC4024616.9210exex3682545.73558.45558.970.000985.87794.16236.160.32
Grays CreekMC4024616.925exex2810545.73557.11557.540.000955.28563.14117.370.31
Grays CreekMC4024616.922exex1898545.73555.18555.50.000924.55417.5156.790.3
Grays CreekMC4024515.79100exex6743545.64561.66562.390.001027.21380.63207.530.35
Grays CreekMC4024515.7950exex5485545.64560.51561.150.000986.631147.48198.190.34
Grays CreekMC4024515.7925exex4664545.64559.65560.220.000956.22980.05187.060.33
Grays CreekMC4024515.7910exex3635545.64558.38558.860.000915.63758.28160.780.32
Grays CreekMC4024515.795exex2775545.64557.04557.440.000895.05573.14110.880.3
Grays CreekMC4024515.792exex1874545.64555.1555.40.000924.42424.0961.870.3
Grays CreekMC4024224.08100exex6743545.4561.44562.080.000916.641393.69215.40.33
Grays CreekMC4024224.0850exex5485545.4560.31560.850.000876.071162.78191.710.32
Grays CreekMC4024224.0825exex4664545.4559.45559.940.000845.671005.46176.820.31
Grays CreekMC4024224.0810exex3635545.4558.18558.580.000815.14792.58157.190.3
Grays CreekMC4024224.085exex2775545.4556.84557.170.000814.63612.44108.030.29
Grays CreekMC4024224.082exex1874545.4554.87555.130.000844.12454.3369.340.28
Grays CreekMC4023861.49100exex6743545.09561.16561.740.000876.581495.6257.960.32
Grays CreekMC4023861.4950exex5485545.09559.99560.540.000896.251204.09237.350.31
Grays CreekMC4023861.4925exex4664545.09559.09559.620.000916997.68221.610.31
Grays CreekMC4023861.4910exex3635545.09557.79558.270.000915.54727.59180.270.31
Grays CreekMC4023861.495exex2775545.09556.49556.870.000854.9569.8882.810.29
Grays CreekMC4023861.492exex1874545.09554.56554.830.00084.22444.0160.710.28
Grays CreekMC4023453.03100exex6743544.75560.99561.390.000675.751973.65385.020.28
Grays CreekMC4023453.0350exex5485544.75559.74560.170.000775.731515.02346.230.29
Grays CreekMC4023453.0325exex4664544.75558.79559.240.000845.671206.02304.530.3
Grays CreekMC4023453.0310exex3635544.75557.44557.890.000935.45834.08245.750.31
Grays CreekMC4023453.035exex2775544.75556.11556.50.000955557.38105.040.31
Grays CreekMC4023453.032exex1874544.75554.19554.490.000884.35430.4362.030.29
C- 12
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4023014.6100exex6722544.38560.14560.950.001118.081574.44249.870.38
Grays CreekMC4023014.650exex5461544.38559.01559.730.001077.51302.81227.880.37
Grays CreekMC4023014.625exex4643544.38558.12558.80.001067.111107.79210.670.36
Grays CreekMC4023014.610exex3617544.38556.82557.430.001056.57848.37191.120.36
Grays CreekMC4023014.65exex2760544.38555.54556.050.001025.93624.41146.830.34
Grays CreekMC4023014.62exex1865544.38553.68554.070.001015.08428.9474.550.33
Grays CreekMC4022661.33100exex6722544.08559.99560.580.000736.71726.69259.220.31
Grays CreekMC4022661.3350exex5461544.08558.86559.380.000686.131444.58243.020.3
Grays CreekMC4022661.3325exex4643544.08557.98558.450.000665.761235.28230.210.29
Grays CreekMC4022661.3310exex3617544.08556.69557.090.000635.22953.27207.630.27
Grays CreekMC4022661.335exex2760544.08555.4555.730.000594.65708.02159.880.26
Grays CreekMC4022661.332exex1865544.08553.53553.770.000553.92507.0474.580.24
Grays CreekMC4022355.03100exex6722543.59559.83560.340.000726.552011.29290.160.3
Grays CreekMC4022355.0350exex5461543.59558.69559.160.000696.091685.6283.430.29
Grays CreekMC4022355.0325exex4643543.59557.8558.240.000685.81433.7276.030.29
Grays CreekMC4022355.0310exex3617543.59556.49556.890.000685.381086.96255.050.28
Grays CreekMC4022355.035exex2760543.59555.18555.540.000674.92772.25219.250.27
Grays CreekMC4022355.032exex1865543.59553.3553.580.000654.25454.8963.570.26
Grays CreekMC4022011.87100exex6722542.69559.41560.060.000926.851501.13231.250.33
Grays CreekMC4022011.8750exex5461542.69558.33558.90.000866.261256.76221.950.31
Grays CreekMC4022011.8725exex4643542.69557.47557.980.000835.881069.15211.620.3
Grays CreekMC4022011.8710exex3617542.69556.21556.640.00085.33813.69192.910.29
Grays CreekMC4022011.875exex2760542.69554.95555.290.000744.72610.53122.190.28
Grays CreekMC4022011.872exex1865542.69553.09553.340.000684.01464.9561.760.26
Grays CreekMC4021523100exex6722541.79558.65559.540.001227.941218.17172.870.38
Grays CreekMC402152350exex5461541.79557.7558.420.001077.091058.44163.10.35
Grays CreekMC402152325exex4643541.79556.9557.530.000996.55931.5154.840.33
Grays CreekMC402152310exex3617541.79555.72556.220.00095.82755.91139.150.31
Grays CreekMC40215235exex2760541.79554.51554.910.000815.09604.93112.210.29
Grays CreekMC40215232exex1865541.79552.7552.980.000774.31438.0671.460.27
Grays CreekMC4021066.23100exex6722541.5558.33559.010.000886.771483.87420.020.33
Grays CreekMC4021066.2350exex5461541.5557.46557.960.000725.861225.48186.450.29
Grays CreekMC4021066.2325exex4643541.5556.67557.10.000675.391084.89171.320.28
Grays CreekMC4021066.2310exex3617541.5555.5555.840.00064.76897.1150.650.26
Grays CreekMC4021066.235exex2760541.5554.31554.570.000544.17728.27132.080.24
Grays CreekMC4021066.232exex1865541.5552.47552.670.000533.56527.0584.170.23
Grays CreekMC4020762.8100exex6722541.29558.11558.720.000916.861717.89279.60.33
Grays CreekMC4020762.850exex5461541.29557.21557.730.000816.21471.04270.180.31
Grays CreekMC4020762.825exex4643541.29556.4556.880.000795.841256.97261.730.3
Grays CreekMC4020762.810exex3617541.29555.22555.630.000745.31961.9231.950.28
Grays CreekMC4020762.85exex2760541.29554.04554.380.000694.73710.14194.930.27
Grays CreekMC4020762.82exex1865541.29552.23552.490.000664.03464.9674.840.25
C- 13
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4020394.32100exex6722541.05558.05558.380.000535.342157.09353.120.26
Grays CreekMC4020394.3250exex5461541.05557.13557.430.000494.931837.31343.390.24
Grays CreekMC4020394.3225exex4643541.05556.31556.60.00054.751556.79333.90.24
Grays CreekMC4020394.3210exex3617541.05555.09555.370.000514.461173.33295.350.24
Grays CreekMC4020394.325exex2760541.05553.89554.140.000514.12846.45241.50.24
Grays CreekMC4020394.322exex1865541.05552.05552.250.000533.62536.996.050.23
Grays CreekMC4020093.38100exex6722540.85557.7558.180.000816.371799.66295.90.31
Grays CreekMC4020093.3850exex5461540.85556.82557.240.000755.851541.82289.370.3
Grays CreekMC4020093.3825exex4643540.85555.99556.40.000765.621305.61283.180.3
Grays CreekMC4020093.3810exex3617540.85554.78555.170.000795.31975.65259.680.3
Grays CreekMC4020093.385exex2760540.85553.57553.930.000814.94682.67208.070.29
Grays CreekMC4020093.382exex1865540.85551.75552.040.000874.38437.3677.330.29
Grays CreekMC4019599.35100exex6722540.52557.27557.80.000736.381599.34262.190.3
Grays CreekMC4019599.3550exex5461540.52556.47556.90.000635.691397.46243.340.27
Grays CreekMC4019599.3525exex4643540.52555.67556.070.00065.321212.14223.820.26
Grays CreekMC4019599.3510exex3617540.52554.5554.830.000554.78967.05192.890.25
Grays CreekMC4019599.355exex2760540.52553.33553.60.00054.22762.37154.660.23
Grays CreekMC4019599.352exex1865540.52551.51551.710.000473.59540.8394.140.22
Grays CreekMC4019487.9100exex6722540.44557.45557.630.000394.623914.11754.350.22
Grays CreekMC4019487.950exex5461540.44556.59556.770.000394.433270.26741.610.22
Grays CreekMC4019487.925exex4643540.44555.75555.950.000444.52650.62725.770.23
Grays CreekMC4019487.910exex3617540.44554.48554.750.000564.711751.06693.620.25
Grays CreekMC4019487.95exex2760540.44553.18553.520.000724.89881.19623.70.28
Grays CreekMC4019487.92exex1865540.44551.34551.630.000754.34451.7790.760.27
Grays CreekMC4019289.87100exex6722540.3556.99557.490.000786.41825.72329.410.31
Grays CreekMC4019289.8750exex5461540.3556.22556.650.000685.751580.04311.140.29
Grays CreekMC4019289.8725exex4643540.3555.43555.830.000675.461341.74290.370.28
Grays CreekMC4019289.8710exex3617540.3554.26554.620.000665.041019.8259.680.27
Grays CreekMC4019289.875exex2760540.3553.07553.380.000644.59736.28212.250.26
Grays CreekMC4019289.872exex1865540.3551.24551.480.000643.98478.4880.280.26
Grays CreekMC4019055.63100exex6722540.15556.56557.240.001318.121936.91341.720.4
Grays CreekMC4019055.6350exex5461540.15555.82556.420.001177.391688.06336.110.37
Grays CreekMC4019055.6325exex4643540.15555.01555.60.00127.141422.48317.390.37
Grays CreekMC4019055.6310exex3617540.15553.8554.390.001276.831057.64289.220.38
Grays CreekMC4019055.635exex2760540.15552.56553.140.001366.5727.6242.360.38
Grays CreekMC4019055.632exex1865540.15550.67551.230.001626.06376.7112.950.4
Grays CreekMC4018721.43100exex6546539.93556.46556.870.000645.741591.28274.550.27
Grays CreekMC4018721.4350exex5313539.93555.75556.090.000565.191399.24260.180.25
Grays CreekMC4018721.4325exex4509539.93554.93555.270.000564.981195.05241.550.25
Grays CreekMC4018721.4310exex3509539.93553.72554.030.000574.68919.92206.440.25
Grays CreekMC4018721.435exex2674539.93552.51552.780.000544.23705.61146.790.24
Grays CreekMC4018721.432exex1804539.93550.62550.830.000553.67497.0881.50.23
Grays CreekMC4018332.71100exex6546539.68556.41556.640.000444.732142.93422.60.23
C- 14
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4018332.7150exex5313539.68555.67555.880.000424.411842.12398.890.22
Grays CreekMC4018332.7125exex4509539.68554.82555.050.000474.481511.9374.950.23
Grays CreekMC4018332.7110exex3509539.68553.52553.810.00064.661052.31326.390.25
Grays CreekMC4018332.715exex2674539.68552.19552.530.000744.73665.25254.950.28
Grays CreekMC4018332.712exex1804539.68550.29550.570.000794.19430.5661.490.28
Grays CreekMC4018033.33100exex6546539.48556.29556.530.000434.892193.22467.940.23
Grays CreekMC4018033.3350exex5313539.48555.57555.780.00044.541885.52403.210.22
Grays CreekMC4018033.3325exex4509539.48554.7554.930.000454.61548.823700.23
Grays CreekMC4018033.3310exex3509539.48553.37553.650.000554.721096.23304.110.25
Grays CreekMC4018033.335exex2674539.48552.01552.320.000644.69740.49219.330.26
Grays CreekMC4018033.332exex1804539.48550.04550.330.000754.38425.09100.490.27
Grays CreekMC4017490.56100exex6546539.13555.41556.110.001287.191298.08431.050.38
Grays CreekMC4017490.5650exex5313539.13554.7555.380.001266.83998.75403.140.37
Grays CreekMC4017490.5625exex4509539.13553.78554.490.001396.74687.5594.810.39
Grays CreekMC4017490.5610exex3509539.13552.63553.180.001315.99587.8578.10.37
Grays CreekMC4017490.565exex2674539.13551.4551.840.00125.34500.466.760.34
Grays CreekMC4017490.562exex1804539.13549.5549.850.001084.71383.357.370.32
Grays CreekMC4017086.34100exex6546538.86555.49555.710.00044.872791.74771.510.23
Grays CreekMC4017086.3450exex5313538.86554.74554.980.000424.812238.9701.770.23
Grays CreekMC4017086.3425exex4509538.86553.85554.070.000414.541682.87341.940.22
Grays CreekMC4017086.3410exex3509538.86552.53552.790.00054.671238.88327.790.24
Grays CreekMC4017086.345exex2674538.86551.16551.470.000614.71825.11256.490.26
Grays CreekMC4017086.342exex1804538.86549.19549.480.000694.35464.5121.530.27
Grays CreekMC4016683.82100exex6546538.61555.5555.580.000193.254438.971160.980.15
Grays CreekMC4016683.8250exex5313538.61554.75554.840.00023.23616.821053.610.15
Grays CreekMC4016683.8225exex4509538.61553.85553.940.000213.12741.05676.710.15
Grays CreekMC4016683.8210exex3509538.61552.48552.610.00033.481848.75628.710.18
Grays CreekMC4016683.825exex2674538.61551.02551.240.000473.961018.13472.230.23
Grays CreekMC4016683.822exex1804538.61548.98549.210.00063.82493.14107.760.24
Grays CreekMC4016163.5100exex6546538.26555.1555.390.000565.132791.961484.140.25
Grays CreekMC4016163.550exex5313538.26554.06554.60.000876.061327.151341.490.31
Grays CreekMC4016163.525exex4509538.26553.19553.690.000875.76956.56191.30.31
Grays CreekMC4016163.510exex3509538.26551.92552.330.000845.19741.41145.970.3
Grays CreekMC4016163.55exex2674538.26550.57550.90.000834.65580.5391.950.29
Grays CreekMC4016163.52exex1804538.26548.59548.850.000764.08442.2461.890.27
Grays CreekMC4015816.21100exex6546538.03554.93555.210.000555.22964.331631.230.25
Grays CreekMC4015816.2150exex5313538.03553.62554.260.001046.651152.39376.680.34
Grays CreekMC4015816.2125exex4509538.03552.73553.350.001076.38880.08249.510.34
Grays CreekMC4015816.2110exex3509538.03551.5552.010.001015.73660.12131.230.32
Grays CreekMC4015816.215exex2674538.03550.18550.590.000965.08526.8471.520.31
Grays CreekMC4015816.212exex1804538.03548.26548.560.00094.41409.1557.940.29
Grays CreekMC4015341.18100exex6546537.97554.9555.040.000294.114253.981907.040.19
Grays CreekMC4015341.1850exex5313537.97553.57553.870.000515.162087.15701.820.25
C- 15
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4015341.1825exex4509537.97552.61552.940.000565.161568.38468.690.25
Grays CreekMC4015341.1810exex3509537.97551.22551.60.000675.211020.56357.480.27
Grays CreekMC4015341.185exex2674537.97549.8550.180.000734.99579.795.250.28
Grays CreekMC4015341.182exex1804537.97547.91548.180.000684.19437.0361.580.26
Grays CreekMC4014886.32100exex6546537.78554.81554.960.000273.844320.742159.050.18
Grays CreekMC4014886.3250exex5313537.78553.46553.690.000384.292163.88847.90.21
Grays CreekMC4014886.3225exex4509537.78552.48552.730.000434.31528.41436.820.22
Grays CreekMC4014886.3210exex3509537.78551.07551.320.000484.181061.4305.420.23
Grays CreekMC4014886.325exex2674537.78549.62549.860.000523.94689.792.830.24
Grays CreekMC4014886.322exex1804537.78547.7547.880.000543.42527.6277.180.23
Grays CreekMC4014379.56100exex6546537.57554.13554.710.000746.571614.03385.040.3
Grays CreekMC4014379.5650exex5313537.57552.89553.410.000716.081295.72216.420.29
Grays CreekMC4014379.5625exex4509537.57551.97552.440.000695.691112.09183.990.28
Grays CreekMC4014379.5610exex3509537.57550.64551.030.000655.14875.88169.810.27
Grays CreekMC4014379.565exex2674537.57549.24549.570.000624.6657.86133.730.26
Grays CreekMC4014379.562exex1804537.57547.36547.590.000593.89472.872.480.24
Grays CreekMC4013939.26100exex6438537.39554554.360.000555.342099.12750.530.26
Grays CreekMC4013939.2650exex5222537.39552.73553.080.000575.051554.8394.740.26
Grays CreekMC4013939.2625exex4427537.39551.78552.120.000594.861224.48241.970.26
Grays CreekMC4013939.2610exex3441537.39550.4550.720.000634.62904.35221.030.26
Grays CreekMC4013939.265exex2618537.39548.99549.270.000674.26636.59143.760.26
Grays CreekMC4013939.262exex1762537.39547.1547.310.000643.71475.2168.920.25
Grays CreekMC4013473.4100exex6438537.12553.81554.130.000414.741927.72288.190.23
Grays CreekMC4013473.450exex5222537.12552.57552.840.00044.371593.93245.260.22
Grays CreekMC4013473.425exex4427537.12551.63551.870.000394.091380.46214.90.22
Grays CreekMC4013473.410exex3441537.12550.26550.470.000393.731106.31185.080.21
Grays CreekMC4013473.45exex2618537.12548.83549.010.00043.41861.12158.580.21
Grays CreekMC4013473.42exex1762537.12546.9547.050.000453.05589.38119.370.21
Grays CreekMC4013030.84100exex6438537.04552.95553.790.001247.861280.15198.240.38
Grays CreekMC4013030.8450exex5222537.04551.77552.510.00127.261055.63183.70.37
Grays CreekMC4013030.8425exex4427537.04550.88551.560.001186.84895.98173.880.36
Grays CreekMC4013030.8410exex3441537.04549.57550.150.001176.26679.58149.350.35
Grays CreekMC4013030.845exex2618537.04548.2548.690.001175.66507.89102.590.34
Grays CreekMC4013030.842exex1762537.04546.33546.710.001254.95356.7661.090.34
Grays CreekMC4012726.5100exex6438536.89552.88553.410.000736.311617.05227.80.29
Grays CreekMC4012726.550exex5222536.89551.69552.160.000695.771355.31214.660.28
Grays CreekMC4012726.525exex4427536.89550.8551.210.000665.391168.26203.120.27
Grays CreekMC4012726.510exex3441536.89549.48549.830.000624.87912.82180.780.26
Grays CreekMC4012726.55exex2618536.89548.1548.390.00064.36685148.840.25
Grays CreekMC4012726.52exex1762536.89546.2546.410.000583.7476.6169.060.23
Grays CreekMC4012420.08100exex6438536.76552.75553.180.000595.521594.15190.60.27
Grays CreekMC4012420.0850exex5222536.76551.58551.940.000565.031373.23185.680.26
Grays CreekMC4012420.0825exex4427536.76550.685510.000544.71208.88181.940.25
C- 16
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4012420.0810exex3441536.76549.36549.630.000534.27972.61173.260.24
Grays CreekMC4012420.085exex2618536.76547.96548.20.000553.9739.77159.080.24
Grays CreekMC4012420.082exex1762536.76546.03546.220.000623.48506.6782.490.25
Grays CreekMC4012124.48100exex6438536.64552.13552.910.00117.531369.73257.180.36
Grays CreekMC4012124.4850exex5222536.64551.02551.690.001046.891109.27207.580.35
Grays CreekMC4012124.4825exex4427536.64550.18550.770.000996.41949.79171.690.34
Grays CreekMC4012124.4810exex3441536.64548.91549.410.000945.77753.88141.630.32
Grays CreekMC4012124.485exex2618536.64547.56547.970.000925.2581.63113.60.31
Grays CreekMC4012124.482exex1762536.64545.66545.980.000994.57401.3477.580.31
Grays CreekMC4011864.69100exex6438536.53552.12552.60.00076.031916.97396.730.3
Grays CreekMC4011864.6950exex5222536.53550.97551.40.000695.611502.03322.020.29
Grays CreekMC4011864.6925exex4427536.53550.11550.50.000675.271249.35263.540.28
Grays CreekMC4011864.6910exex3441536.53548.82549.160.000664.82950.29202.830.27
Grays CreekMC4011864.695exex2618536.53547.44547.730.000684.41710.67151.910.27
Grays CreekMC4011864.692exex1762536.53545.48545.720.000814465.5101.570.28
Grays CreekMC4011536.53100exex6438536.4551.61552.310.000946.971375.99270.710.34
Grays CreekMC4011536.5350exex5222536.4550.55551.130.000876.321116.89214.360.32
Grays CreekMC4011536.5325exex4427536.4549.74550.240.000815.84959.89177.130.31
Grays CreekMC4011536.5310exex3441536.4548.5548.920.000765.2766137.80.29
Grays CreekMC4011536.535exex2618536.4547.16547.50.000744.65605.52105.160.28
Grays CreekMC4011536.532exex1762536.4545.19545.450.000824.12432.8775.440.29
Grays CreekMC4011175.72100exex6438536.24551.33551.950.000946.911412.21287.150.34
Grays CreekMC4011175.7250exex5222536.24550.13550.790.001036.791078.16273.030.35
Grays CreekMC4011175.7225exex4427536.24549.28549.90.001046.48869.26208.940.34
Grays CreekMC4011175.7210exex3441536.24548.09548.60.000975.81681.04110.960.33
Grays CreekMC4011175.725exex2618536.24546.78547.190.000935.16550.1793.140.31
Grays CreekMC4011175.722exex1762536.24544.79545.110.001054.6387.1969.170.32
Grays CreekMC4010948.73100exex6438536.15551.53551.70.000324.073305.92721.950.2
Grays CreekMC4010948.7350exex5222536.15550.3550.520.000424.332424.5704.710.22
Grays CreekMC4010948.7325exex4427536.15549.37549.640.00054.491797.43633.690.24
Grays CreekMC4010948.7310exex3441536.15548.06548.370.000594.491059.36494.130.25
Grays CreekMC4010948.735exex2618536.15546.72546.980.00064.1655.36129.470.25
Grays CreekMC4010948.732exex1762536.15544.69544.890.000633.62486.872.210.25
Grays CreekMC4010433.88100exex6368535.39551.44551.570.000293.772862.91585.960.19
Grays CreekMC4010433.8850exex5171535.39550.15550.330.00044.172116.26568.930.22
Grays CreekMC4010433.8825exex4386535.39549.16549.40.000524.481585.79494.30.24
Grays CreekMC4010433.8810exex3413535.39547.69548.030.000764.89952.9365.620.29
Grays CreekMC4010433.885exex2601535.39546.21546.580.000964.87551.52184.140.31
Grays CreekMC4010433.882exex1759535.39544.14544.460.001134.52389.2265.530.33
Grays CreekMC4010089.29100exex6368534.6551.09551.440.000515.071680.63311.950.25
Grays CreekMC4010089.2950exex5171534.6549.82550.170.000554.931293.57284.40.26
Grays CreekMC4010089.2925exex4386534.6548.88549.220.000564.691061.87212.380.25
Grays CreekMC4010089.2910exex3413534.6547.51547.790.000564.27832.29135.270.25
C- 17
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC4010089.295exex2601534.6546.05546.290.000583.88669.787.910.25
Grays CreekMC4010089.292exex1759534.6543.95544.150.000593.52499.7675.720.24
Grays CreekMC409731.165100exex6368533.95550.53551.190.000796.731239.14162.410.31
Grays CreekMC409731.16550exex5171533.95549.38549.930.000726.051058.54151.440.29
Grays CreekMC409731.16525exex4386533.95548.52548.990.000665.56932.08140.60.28
Grays CreekMC409731.16510exex3413533.95547.21547.580.00064.91762.3114.990.26
Grays CreekMC409731.1655exex2601533.95545.79546.080.000564.33623.3183.680.24
Grays CreekMC409731.1652exex1759533.95543.72543.940.000573.73472.1264.180.24
Grays CreekMC409521.34100exex6368533.86550.4551.010.000756.431276171.540.3
Grays CreekMC409521.3450exex5171533.86549.27549.770.000685.781088.95157.090.28
Grays CreekMC409521.3425exex4386533.86548.41548.840.000635.32959.08145.120.27
Grays CreekMC409521.3410exex3413533.86547.11547.450.000574.7783.17123.650.25
Grays CreekMC409521.345exex2601533.86545.69545.960.000534.14634.776.580.24
Grays CreekMC409521.342exex1759533.86543.62543.820.000533.59490.664.320.23
Grays CreekMC409136.59100exex6368533.7550.42550.70.000455.062170.39337.520.23
Grays CreekMC409136.5950exex5171533.7549.2549.490.000494.981766.113250.24
Grays CreekMC409136.5925exex4386533.7548.28548.580.000534.951470.3315.10.25
Grays CreekMC409136.5910exex3413533.7546.89547.220.000614.881059.61271.150.26
Grays CreekMC409136.595exex2601533.7545.38545.720.00074.74697.16200.590.27
Grays CreekMC409136.592exex1759533.7543.28543.560.000794.27431.284.430.28
Grays CreekMC409020.513100exex6368533.65550.41550.650.00044.732121.77325.940.22
Grays CreekMC409020.51350exex5171533.65549.18549.430.000444.681728.48315.50.23
Grays CreekMC409020.51325exex4386533.65548.25548.520.000494.691437.83307.560.24
Grays CreekMC409020.51310exex3413533.65546.84547.140.000584.71028.4270.620.25
Grays CreekMC409020.5135exex2601533.65545.31545.630.000694.62662.36187.950.27
Grays CreekMC409020.5132exex1759533.65543.19543.470.000814.18426.4771.920.28
Grays CreekMC408762.03100exex6368532.74550.16542.31550.50.000554.691363.06132.350.25
Grays CreekMC408762.0350exex5171532.74549.02541.39549.30.000524.271214.09129.290.24
Grays CreekMC408762.0325exex4386532.74548.13540.58548.380.000523.991100.11126.90.24
Grays CreekMC408762.0310exex3413532.74546.75539.66546.960.00053.67930.87117.70.23
Grays CreekMC408762.035exex2601532.74545.23538.81545.410.00053.42760.07106.980.23
Grays CreekMC408762.032exex1759532.74543.08537.78543.240.000573.22545.9591.780.23
Grays CreekMC408700Bridge
Grays CreekMC408692.477100exex6368532.43549.94542.46550.40.000585.511305.54131.250.27
Grays CreekMC408692.47750exex5171532.43548.85541.57549.210.000524.921164.4126.970.25
Grays CreekMC408692.47725exex4386532.43547.99540.76548.30.000494.531056.61123.480.24
Grays CreekMC408692.47710exex3413532.43546.64539.85546.890.000464.04896.63114.420.23
Grays CreekMC408692.4775exex2601532.43545.15539.01545.350.000473.66733.01104.350.22
Grays CreekMC408692.4772exex1759532.43543537.99543.180.000593.36524.9689.920.24
Grays CreekMC408346.782100exex6368531.57549.76550.20.000525.722013.07360.550.25
Grays CreekMC408346.78250exex5171531.57548.68549.050.000475.181653.573020.24
Grays CreekMC408346.78225exex4386531.57547.81548.140.000444.821403.05271.060.23
C- 18
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC408346.78210exex3413531.57546.47546.740.00044.31088.27200.780.22
Grays CreekMC408346.7825exex2601531.57544.98545.20.000383.84825.42150.810.2
Grays CreekMC408346.7822exex1759531.57542.85543.010.000373.3572.6295.770.2
Grays CreekMC407981.765100exex6259531.1549.89550.020.000143.032781.45343.540.14
Grays CreekMC407981.76550exex5079531.1548.78548.890.000132.752411.21321.890.13
Grays CreekMC407981.76525exex4315531.1547.9547.990.000122.562134.17303.750.12
Grays CreekMC407981.76510exex3358531.1546.53546.610.000112.291746.89264.890.12
Grays CreekMC407981.7655exex2555531.1545.03545.090.00012.051382.44216.770.11
Grays CreekMC407981.7652exex1722531.1542.87542.910.00011.76992.06144.780.11
Grays CreekMC407671.703100exex6259528.46549.71539.49549.930.000293.771668.05136.920.19
Grays CreekMC407671.70350exex5079528.46548.64538.45548.820.000253.341523.54133.260.17
Grays CreekMC407671.70325exex4315528.46547.78537.64547.930.000233.061410.09130.310.16
Grays CreekMC407671.70310exex3358528.46546.44536.69546.560.000212.711238.13127.120.15
Grays CreekMC407671.7035exex2555528.46544.95535.8545.040.00022.431050124.480.15
Grays CreekMC407671.7032exex1722528.46542.79534.64542.860.000222.18788.51116.290.15
Grays CreekMC407650Bridge
Grays CreekMC407620.26100exex6259530.59549.63540.61549.870.000343.961587.07137.020.2
Grays CreekMC407620.2650exex5079530.59548.57539.75548.760.00033.521444.1133.680.19
Grays CreekMC407620.2625exex4315530.59547.72539.07547.880.000283.241331.08130.980.18
Grays CreekMC407620.2610exex3358530.59546.38538.13546.520.000272.91158.92127.970.17
Grays CreekMC407620.265exex2555530.59544.89537.245450.000272.63969.89125.260.17
Grays CreekMC407620.262exex1722530.59542.73536.25542.820.000312.44706.41116.380.17
Grays CreekMC407270.043100exex6259530.36549.36549.710.00045.091670.92202.030.23
Grays CreekMC407270.04350exex5079530.36548.33548.620.000364.571466.88194.60.21
Grays CreekMC407270.04325exex4315530.36547.49547.750.000334.231306.22188.540.2
Grays CreekMC407270.04310exex3358530.36546.18546.390.00033.791065.15179.070.19
Grays CreekMC407270.0435exex2555530.36544.71544.890.000283.35837.7126.570.18
Grays CreekMC407270.0432exex1722530.36542.58542.710.000272.84626.2387.080.17
Grays CreekMC407062.312100exex6259530.25549.42549.590.000274.052438.4346.40.18
Grays CreekMC407062.31250exex5079530.25548.35548.520.000273.882072.32341.970.18
Grays CreekMC407062.31225exex4315530.25547.49547.650.000283.831777.75338.360.18
Grays CreekMC407062.31210exex3358530.25546.13546.320.000333.861321.6332.70.19
Grays CreekMC407062.3125exex2555530.25544.58544.810.000413.95833.93294.630.21
Grays CreekMC407062.3122exex1722530.25542.45542.630.000423.46520.9278.960.21
Grays CreekMC406736.218100exex6259530.02549.37549.50.000213.913012.24405.480.17
Grays CreekMC406736.21850exex5079530.02548.31548.430.000213.712585.95396.670.16
Grays CreekMC406736.21825exex4315530.02547.45547.560.000213.612248.67380.370.16
Grays CreekMC406736.21810exex3358530.02546.09546.210.000233.551754.84347.350.17
Grays CreekMC406736.2185exex2555530.02544.53544.670.000293.621262.7283.90.18
Grays CreekMC406736.2182exex1722530.02542.29542.490.000443.91701.1225.640.22
Grays CreekMC406165.813100exex6259529.91549.29549.380.000163.273142.63326.850.14
Grays CreekMC406165.81350exex5079529.91548.24548.320.000142.982802.15321.290.14
C- 19
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC406165.81325exex4315529.91547.38547.450.000142.82528.45316.030.13
Grays CreekMC406165.81310exex3358529.91546.03546.090.000142.592107.41307.340.13
Grays CreekMC406165.8135exex2555529.91544.47544.540.000152.471637.6297.330.13
Grays CreekMC406165.8132exex1722529.91542.23542.290.000192.421096.96217.870.14
Grays CreekMC405969.827100exex6259529.8549.29549.350.00012.853623.07328.770.12
Grays CreekMC405969.82750exex5079529.8548.23548.299.1E-052.573280.3323.790.11
Grays CreekMC405969.82725exex4315529.8547.38547.428.5E-052.43004.09319.490.11
Grays CreekMC405969.82710exex3358529.8546.03546.070.000082.192577.16312.570.1
Grays CreekMC405969.8275exex2555529.8544.47544.518.2E-052.052099.48302.130.1
Grays CreekMC405969.8272exex1722529.8542.23542.269.3E-051.911490.81228.450.1
Grays CreekMC405497.025100exex6259529.71549.19549.290.000193.823262.88311.10.16
Grays CreekMC405497.02550exex5079529.71548.15548.230.000173.472942.44305.120.15
Grays CreekMC405497.02525exex4315529.71547.3547.370.000163.262684.13299.990.15
Grays CreekMC405497.02510exex3358529.71545.95546.010.000163.022285.26291.820.14
Grays CreekMC405497.0255exex2555529.71544.39544.450.000172.911837.67282.370.14
Grays CreekMC405497.0252exex1722529.71542.16542.20.000172.51309.37218.040.14
Grays CreekMC405332.011100exex6259529.5549.15549.260.000153.453254.32310.790.15
Grays CreekMC405332.01150exex5079529.5548.12548.210.000133.12935.87305.20.14
Grays CreekMC405332.01125exex4315529.5547.27547.350.000132.892678.61299.760.13
Grays CreekMC405332.01110exex3358529.5545.92545.990.000122.642281.52290.940.12
Grays CreekMC405332.0115exex2555529.5544.37544.430.000122.481837.01279.730.12
Grays CreekMC405332.0112exex1722529.5542.13542.180.000122.191302.6224.770.12
Grays CreekMC404890.619100exex6259529.52549.1549.190.000133.073627.58387.270.13
Grays CreekMC404890.61950exex5079529.52548.07548.150.000122.793231.2381.870.13
Grays CreekMC404890.61925exex4315529.52547.22547.290.000112.632908.95376.590.12
Grays CreekMC404890.61910exex3358529.52545.87545.940.000112.462407.7368.040.12
Grays CreekMC404890.6195exex2555529.52544.31544.370.000132.381839.8357.430.12
Grays CreekMC404890.6192exex1722529.52542.07542.120.000132.061243.79220.410.12
Grays CreekMC404434.737100exex6259529.3549.06549.130.000123.054130.52422.710.13
Grays CreekMC404434.73750exex5079529.3548.03548.090.000112.793698.64417.320.12
Grays CreekMC404434.73725exex4315529.3547.19547.240.000112.643346.37412.250.12
Grays CreekMC404434.73710exex3358529.3545.84545.890.000112.52796.08404.160.12
Grays CreekMC404434.7375exex2555529.3544.26544.320.000122.472167.44394.550.12
Grays CreekMC404434.7372exex1722529.3542542.060.000162.51337.32315.670.14
Grays CreekMC403987.229100exex6259529.15549.01549.070.000112.964263.07428.810.12
Grays CreekMC403987.22950exex5079529.15547.99548.040.00012.73826.9423.450.12
Grays CreekMC403987.22925exex4315529.15547.14547.199.7E-052.543469.974190.11
Grays CreekMC403987.22910exex3358529.15545.8545.849.5E-052.372910.45411.630.11
Grays CreekMC403987.2295exex2555529.15544.22544.260.000112.32269.18401.480.11
Grays CreekMC403987.2292exex1722529.15541.94541.990.000142.281386.54243.590.13
Grays CreekMC403476.919100exex6259528.94548.96549.020.000112.874299.34441.730.12
Grays CreekMC403476.91950exex5079528.94547.94547.999.8E-052.613852.36436.530.12
Grays CreekMC403476.91925exex4315528.94547.09547.149.3E-052.463485.46432.150.11
C- 20
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC403476.91910exex3358528.94545.75545.799.1E-052.292908.48424.740.11
Grays CreekMC403476.9195exex2555528.94544.17544.210.00012.212245.09413.840.11
Grays CreekMC403476.9192exex1722528.94541.87541.920.000122.151360.89227.970.12
Grays CreekMC403034.635100exex6259528.82548.74548.930.000294.562423.35240.370.2
Grays CreekMC403034.63550exex5079528.82547.76547.910.000254.112189.27235.260.18
Grays CreekMC403034.63525exex4315528.82546.93547.070.000233.81997.37230.220.17
Grays CreekMC403034.63510exex3358528.82545.6545.720.000223.451697.45222.040.16
Grays CreekMC403034.6355exex2555528.82544.03544.140.000223.241355.1212.070.16
Grays CreekMC403034.6352exex1722528.82541.71541.830.000293.18881.16197.070.18
Grays CreekMC402883.2100exex6259528.69548.62548.880.000294.812143.75226.580.2
Grays CreekMC402883.250exex5079528.69547.66547.870.000254.291928.85219.530.19
Grays CreekMC402883.225exex4315528.69546.85547.030.000223.951753.52212.50.17
Grays CreekMC402883.210exex3358528.69545.54545.690.00023.521482.39201.050.16
Grays CreekMC402883.25exex2555528.69543.97544.110.000193.21178.54187.170.16
Grays CreekMC402883.22exex1722528.69541.68541.80.00022.9774.04163.660.16
Grays CreekMC402340.215100exex6259528.61548.53548.720.000254.312847.31422.530.18
Grays CreekMC402340.21550exex5079528.61547.56547.730.000233.992441.89414.410.18
Grays CreekMC402340.21525exex4315528.61546.74546.910.000233.832104.35407.520.17
Grays CreekMC402340.21510exex3358528.61545.39545.570.000243.681565.96394.370.17
Grays CreekMC402340.2155exex2555528.61543.8543.980.000263.55958.97295.810.18
Grays CreekMC402340.2152exex1722528.61541.55541.680.000242.96664.3390.850.17
Grays CreekMC401959.168100exex6259528.37548.41548.620.0002842737.85638.10.19
Grays CreekMC401959.16850exex5079528.37547.43547.630.000283.822116.48629.720.19
Grays CreekMC401959.16825exex4315528.37546.61546.810.000293.71598.31622.640.19
Grays CreekMC401959.16810exex3358528.37545.3545.470.000273.351094.59158.350.18
Grays CreekMC401959.1685exex2555528.37543.73543.870.000283.03870.18126.220.18
Grays CreekMC401959.1682exex1722528.37541.46541.570.000312.71635.2787.160.18
Grays CreekMC401417.51100exex6259528.11548.2548.450.000374.442739.19962.980.21
Grays CreekMC401417.5150exex5079528.11547.15547.450.000434.481739.06950.160.23
Grays CreekMC401417.5125exex4315528.11546.33546.610.000434.311094392.690.23
Grays CreekMC401417.5110exex3358528.11545.07545.290.000393.78917.42109.420.21
Grays CreekMC401417.515exex2555528.11543.5543.690.00043.42754.7498.040.21
Grays CreekMC401417.512exex1722528.11541.21541.370.000463.14548.84820.21
Grays CreekMC40834.788100exex6259527.9547.91548.220.000424.662233.421458.020.23
Grays CreekMC40834.78850exex5079527.9546.91547.210.000414.361213.9134.990.22
Grays CreekMC40834.78825exex4315527.9546.12546.370.000373.971111.92123.090.21
Grays CreekMC40834.78810exex3358527.9544.89545.070.000333.48969.91106.990.19
Grays CreekMC40834.7885exex2555527.9543.32543.470.000323.13815.8692.380.19
Grays CreekMC40834.7882exex1722527.9541.01541.140.000312.8615.881.340.18
Grays CreekMC40171.067100exex6259527.59547.66538.95547.940.00044.682331.9685.680.22
Grays CreekMC40171.06750exex5079527.59546.66537.93546.930.00044.451749.05428.460.22
Grays CreekMC40171.06725exex4315527.59545.85537.19546.110.00044.261433.06378.530.22
Grays CreekMC40171.06710exex3358527.59544.59536.19544.830.00043.96984.91324.540.21
C- 21
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
Grays CreekMC40171.0675exex2555527.59543.03535.21543.230.00043.58718.1884.850.21
Grays CreekMC40171.0672exex1722527.59540.74534.04540.90.00043.16544.2670.360.2
GC_Trib80RCH26011204.15100exex379681.95685.36685.36685.770.013816.55108.69132.210.76
GC_Trib80RCH26011204.1550exex338681.95685.28685.28685.680.013596.3598.38124.830.75
GC_Trib80RCH26011204.1525exex299681.95685.19685.19685.580.01356.1687.81116.780.74
GC_Trib80RCH26011204.1510exex242681.95685.05685.05685.420.013295.8371.93103.520.73
GC_Trib80RCH26011204.155exex191681.95684.89684.89685.250.013295.5156.4988.740.72
GC_Trib80RCH26011204.152exex129681.95684.59684.55684.940.01455.134.9855.610.73
GC_Trib80RCH26010806.1100exex379675.73679.64679.64680.110.012156.1397.55127.770.72
GC_Trib80RCH26010806.150exex338675.73679.54679.54680.010.012516.0284.47115.90.72
GC_Trib80RCH26010806.125exex299675.73679.41679.41679.90.013145.9471.22102.490.73
GC_Trib80RCH26010806.110exex242675.73679.18679.18679.690.015175.8950.3476.750.77
GC_Trib80RCH26010806.15exex191675.73678.96678.66679.430.016025.5436.0152.190.77
GC_Trib80RCH26010806.12exex129675.73678.56678.23678.940.015664.9526.0719.060.75
GC_Trib80RCH26010510.7100exex543670674.08674.660.01386.1388.6343.550.74
GC_Trib80RCH26010510.750exex445670673.84674.330.012715.6578.7839.570.71
GC_Trib80RCH26010510.725exex373670673.56674.020.012985.4868.0436.890.71
GC_Trib80RCH26010510.710exex301670673.04673.60.01839650.1931.930.84
GC_Trib80RCH26010510.75exex236670672.55672.55673.230.026826.5935.8227.291.01
GC_Trib80RCH26010510.72exex162670672.19672.19672.770.027066.0826.6623.871.01
GC_Trib80RCH26010313.14100exex543666.35674.15670.08674.190.000351.96510.82227.730.14
GC_Trib80RCH26010313.1450exex445666.35673.89669.71673.920.000321.8452.01219.290.13
GC_Trib80RCH26010313.1425exex373666.35673.6669.42673.630.00031.7390.79204.670.12
GC_Trib80RCH26010313.1410exex301666.35673.09669.07673.130.000351.71293.67175.890.13
GC_Trib80RCH26010313.145exex236666.35671.88668.71671.980.000942.5293.7677.790.21
GC_Trib80RCH26010313.142exex162666.35670.77668.23670.850.001112.2970.8825.350.22
GC_Trib80RCH26010250Culvert
GC_Trib80RCH26010182.05100exex543662.55668.97667.16669.980.011898.0869.6630.070.58
GC_Trib80RCH26010182.0550exex445662.55668.38666.6669.230.011487.416114.220.56
GC_Trib80RCH26010182.0525exex373662.55668.08666.16668.750.009796.5856.9512.880.51
GC_Trib80RCH26010182.0510exex301662.55667.65665.7668.170.008485.8151.8511.120.47
GC_Trib80RCH26010182.055exex236662.55667.13665.24667.540.007145.1146.1510.920.44
GC_Trib80RCH26010182.052exex162662.55666.42664.65666.690.005564.2238.410.650.39
GC_Trib80RCH2609900.977100exex543661.46665.95665.4666.60.010936.5185.336.950.7
GC_Trib80RCH2609900.97750exex445661.46665.86665.1666.330.00825.5182.1836.290.6
GC_Trib80RCH2609900.97725exex373661.46665.52664.85665.970.009235.3370.3633.650.63
GC_Trib80RCH2609900.97710exex301661.46665.27664.57665.630.009074.8661.8831.630.61
GC_Trib80RCH2609900.9775exex236661.46664.97664.29665.280.008764.4752.7529.40.59
GC_Trib80RCH2609900.9772exex162661.46664.54663.91664.780.008273.9640.9526.290.56
GC_Trib80RCH2609686.862100exex543659.37662.59662.59663.480.020698.1496.9873.190.85
GC_Trib80RCH2609686.86250exex445659.37661.98661.98663.120.03482960.7338.871.07
GC_Trib80RCH2609686.86225exex373659.37661.9661.9662.780.027767.8657.8338.060.95
C- 22
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib80RCH2609686.86210exex301659.37661.64661.64662.430.028837.3648.3635.280.95
GC_Trib80RCH2609686.8625exex236659.37661.38661.38662.070.030656.8839.3132.40.96
GC_Trib80RCH2609686.8622exex162659.37661.03661.03661.60.033466.1628.8228.710.97
GC_Trib80RCH2609475.427100exex543653.66659.07659.770.005797.33126.668.370.61
GC_Trib80RCH2609475.42750exex445653.66658.58659.280.006337.196.5354.960.62
GC_Trib80RCH2609475.42725exex373653.66658.35658.930.00576.4784.1748.380.59
GC_Trib80RCH2609475.42710exex301653.66658.1658.550.004815.6873.0140.520.53
GC_Trib80RCH2609475.4275exex236653.66657.52657.970.005765.525331.090.57
GC_Trib80RCH2609475.4272exex162653.66657.18657.470.004264.3743.1226.70.48
GC_Trib80RCH2609141.088100exex1022650.8655.91655.91656.950.01089.78166.4889.620.85
GC_Trib80RCH2609141.08850exex846650.8655.74655.74656.60.009288.81151.4784.580.78
GC_Trib80RCH2609141.08825exex728650.8655.52655.52656.350.009278.47133.4178.080.77
GC_Trib80RCH2609141.08810exex591650.8655.16655.166560.010058.26107.4767.670.79
GC_Trib80RCH2609141.0885exex471650.8655.04655.660.007677.0399.1163.960.68
GC_Trib80RCH2609141.0882exex327650.8654.38655.040.00996.8863.4644.780.75
GC_Trib80RCH2608879.055100exex1393647.8653.04653.04653.930.010259.57225.1109.050.82
GC_Trib80RCH2608879.05550exex1170647.8652.82652.82653.640.009889.07201.44106.50.8
GC_Trib80RCH2608879.05525exex1014647.8652.67652.67653.420.009378.6185.14104.70.78
GC_Trib80RCH2608879.05510exex822647.8652.44652.44653.120.008888.03161.71102.070.75
GC_Trib80RCH2608879.0555exex653647.8651.8651.8652.820.015249.24103.2768.10.95
GC_Trib80RCH2608879.0552exex455647.8651.53651.53652.250.011747.685.3961.870.82
GC_Trib80RCH2608702.354100exex1393646.1651.9650.51652.030.001043.62640317.010.27
GC_Trib80RCH2608702.35450exex1170646.1651.74649.82651.850.000883.26592.05304.740.25
GC_Trib80RCH2608702.35425exex1014646.1651.62649.31651.710.000763555.89295.150.23
GC_Trib80RCH2608702.35410exex822646.1651.44648.91651.520.000632.66503.75280.750.21
GC_Trib80RCH2608702.3545exex653646.1650.55648.53650.70.001363.43281.82213.050.3
GC_Trib80RCH2608702.3542exex455646.1649.09648.03649.40.004214.5103.0845.580.49
GC_Trib80RCH2608675Bridge
GC_Trib80RCH2608656.687100exex1393646.09650.47650.47651.030.004966.61313.79289.850.58
GC_Trib80RCH2608656.68750exex1170646.09650.28650.28650.840.004916.37258.54282.010.57
GC_Trib80RCH2608656.68725exex1014646.09649.27649.1650.30.012288.24130.5858.590.86
GC_Trib80RCH2608656.68710exex822646.09649.02648.73649.850.011057.37116.6355.310.8
GC_Trib80RCH2608656.6875exex653646.09648.68648.36649.390.011296.7998.5650.760.79
GC_Trib80RCH2608656.6872exex455646.09648.23647.94648.780.011535.9476.7244.70.77
GC_Trib80RCH2608303.973100exex1393639.27645.55645.55646.870.0085310.1185.7877.180.78
GC_Trib80RCH2608303.97350exex1170639.27645.04645.04646.40.0096910.04149.663.520.82
GC_Trib80RCH2608303.97325exex1014639.27644.53644.536460.0117110.22120.8850.060.89
GC_Trib80RCH2608303.97310exex822639.27643.87643.87645.320.0142510.0393.435.20.95
GC_Trib80RCH2608303.9735exex653639.27643.42643.42644.70.014949.367833.010.95
GC_Trib80RCH2608303.9732exex455639.27642.81642.81643.870.016138.3958.9830.070.95
GC_Trib80RCH2607967.712100exex1393634.92641.12642.080.007318.01209.288.70.69
GC_Trib80RCH2607967.71250exex1170634.92640.8641.640.006977.42181.1184.360.66
C- 23
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib80RCH2607967.71225exex1014634.92640.57641.30.006586.92161.7381.230.64
GC_Trib80RCH2607967.71210exex822634.92640.2640.820.006266.3133.3168.850.61
GC_Trib80RCH2607967.7125exex653634.92639.75640.270.006075.8112.5837.980.59
GC_Trib80RCH2607967.7122exex455634.92639.08639.490.005745.1588.2934.240.57
GC_Trib80RCH2607635.628100exex1485631.98638.61639.630.007419.03284.24116.190.67
GC_Trib80RCH2607635.62850exex1248631.98637.95639.020.00879.03216.4989.690.72
GC_Trib80RCH2607635.62825exex1083631.98637.46638.580.009989.06175.4377.630.76
GC_Trib80RCH2607635.62810exex878631.98636.84637.970.011658.91132.1262.430.8
GC_Trib80RCH2607635.6285exex694631.98636.26637.330.013138.55100.0648.180.83
GC_Trib80RCH2607635.6282exex483631.98635.53635.4636.460.015247.8969.6637.370.87
GC_Trib80RCH2607317.787100exex1485628.51634.73634.46636.710.0110211.97173.4353.310.9
GC_Trib80RCH2607317.78750exex1248628.51634.34633.91636.010.0100910.91154.346.720.85
GC_Trib80RCH2607317.78725exex1083628.51634.03633.59635.470.0094710.13140.4742.150.82
GC_Trib80RCH2607317.78710exex878628.51633.6633.05634.790.008749.13123.0239.440.77
GC_Trib80RCH2607317.7875exex694628.51633.18632.56634.120.00798.1106.7337.030.72
GC_Trib80RCH2607317.7872exex483628.51632.58631.87633.250.006926.7985.4234.410.66
GC_Trib80RCH2607021.846100exex1485626.4631.08631.08632.620.016739.94149.3748.691
GC_Trib80RCH2607021.84650exex1248626.4630.7630.7632.110.017189.52131.0746.591
GC_Trib80RCH2607021.84625exex1083626.4630.41630.41631.720.017559.19117.8945.011
GC_Trib80RCH2607021.84610exex878626.4630.03630.03631.20.018128.7100.8842.91
GC_Trib80RCH2607021.8465exex694626.4629.64629.64630.680.018828.1884.840.791
GC_Trib80RCH2607021.8462exex483626.4629.14629.146300.019987.4265.0738.061
GC_Trib80RCH2606795.793100exex1485622.53629.13629.880.005186.96213.4547.960.58
GC_Trib80RCH2606795.79350exex1248622.53628.59629.270.005216.63188.2345.810.58
GC_Trib80RCH2606795.79325exex1083622.53628.22628.840.005126.32171.3944.310.57
GC_Trib80RCH2606795.79310exex878622.53627.72628.250.004925.86149.9142.330.55
GC_Trib80RCH2606795.7935exex694622.53627.2627.650.004785.4128.5440.250.53
GC_Trib80RCH2606795.7932exex483622.53626.52626.870.004514.73102.0737.530.51
GC_Trib80RCH2606532.54100exex1485620.3625.75625.75627.60.0150911.02145.6748.940.99
GC_Trib80RCH2606532.5450exex1248620.3625.38625.38627.010.0150310.29128.3946.050.97
GC_Trib80RCH2606532.5425exex1083620.3625.07625.07626.570.015669.86114.2943.540.98
GC_Trib80RCH2606532.5410exex878620.3624.63624.63625.970.017139.3395.8440.021
GC_Trib80RCH2606532.545exex694620.3624.23624.23625.390.018038.6380.7936.911
GC_Trib80RCH2606532.542exex483620.3623.69623.69624.640.019467.861.9332.771
GC_Trib80RCH2606260.457100exex1485617.9623.21624.110.006738.29249.03133.120.69
GC_Trib80RCH2606260.45750exex1248617.9622.95623.790.006437.8215.5127.010.66
GC_Trib80RCH2606260.45725exex1083617.9622.73623.520.006257.42188.52117.810.65
GC_Trib80RCH2606260.45710exex878617.9622.43623.110.005816.8155.07102.560.62
GC_Trib80RCH2606260.4575exex694617.9622.03622.60.00556.14124.349.60.59
GC_Trib80RCH2606260.4572exex483617.9621.44621.860.00515.2198.4442.390.55
GC_Trib80RCH2605948.557100exex1485615.57621.84622.20.004685.21353.71180.50.44
GC_Trib80RCH2605948.55750exex1248615.57621.45621.830.005275.23287.1158.070.47
GC_Trib80RCH2605948.55725exex1083615.57621.16621.540.005625.16243.4138.840.48
C- 24
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib80RCH2605948.55710exex878615.57620.566210.007425.35173.4594.970.55
GC_Trib80RCH2605948.5575exex694615.57620.05620.460.008355.16134.6657.570.58
GC_Trib80RCH2605948.5572exex483615.57619.23619.650.010635.1993.0346.730.65
GC_Trib80RCH2605669.464100exex1757611.87618.67618.67620.230.0097211.74298.08123.080.85
GC_Trib80RCH2605669.46450exex1458611.87618.09618.09619.650.0106211.45232.84100.70.87
GC_Trib80RCH2605669.46425exex1261611.87617.68619.230.0112411.18194.4389.380.89
GC_Trib80RCH2605669.46410exex1013611.87617.43618.630.009129.72172.6283.110.79
GC_Trib80RCH2605669.4645exex808611.87617.01618.040.008538.84140.9170.060.75
GC_Trib80RCH2605669.4642exex554611.87616.36617.140.007677.51101.9450.920.7
GC_Trib80RCH2605388.009100exex1757608.98617.08617.70.00367.59424.35171.60.53
GC_Trib80RCH2605388.00950exex1458608.98616.28617.110.005158.31301.46133.970.61
GC_Trib80RCH2605388.00925exex1261608.98615.72616.70.006418.66234.2110.480.67
GC_Trib80RCH2605388.00910exex1013608.98614.93616.090.008759.04158.5680.070.77
GC_Trib80RCH2605388.0095exex808608.98614.31615.430.010038.73116.2955.760.8
GC_Trib80RCH2605388.0092exex554608.98613.42613.2614.410.012388.0877.3638.090.85
GC_Trib80RCH2605092.035100exex1757605.94613.66615.860.010913.96224.9253.920.93
GC_Trib80RCH2605092.03550exex1458605.94613.44615.120.0085912.13213.2752.580.82
GC_Trib80RCH2605092.03525exex1261605.94613.15614.60.0077411.18198.2150.810.77
GC_Trib80RCH2605092.03510exex1013605.94612.66613.840.006819.96174.0647.820.72
GC_Trib80RCH2605092.0355exex808605.94612.15613.120.006128.9150.6544.740.67
GC_Trib80RCH2605092.0352exex554605.94611.37612.070.005227.42117.5539.970.6
GC_Trib80RCH2604791.773100exex1757604.18610.93610.93612.350.010419.83209.2696.950.84
GC_Trib80RCH2604791.77350exex1458604.18610.26610.26611.80.0136710.07154.5265.370.93
GC_Trib80RCH2604791.77325exex1261604.18609.85609.85611.350.015429.88131.9950.010.97
GC_Trib80RCH2604791.77310exex1013604.18609.42609.42610.740.016469.26111.0845.640.98
GC_Trib80RCH2604791.7735exex808604.18609.04609610.180.017058.5694.7241.920.97
GC_Trib80RCH2604791.7732exex554604.18608.47608.39609.380.017677.6672.2936.340.96
GC_Trib80RCH2604299.064100exex1757599.85606.45607.240.004627.98333.06142.080.59
GC_Trib80RCH2604299.06450exex1458599.85605.75606.660.005918.26241.73115.150.65
GC_Trib80RCH2604299.06425exex1261599.85605.37606.270.006238.06201.8499.220.66
GC_Trib80RCH2604299.06410exex1013599.85604.88605.710.006437.6158.378.20.66
GC_Trib80RCH2604299.0645exex808599.85604.42605.160.006537.07126.5758.30.65
GC_Trib80RCH2604299.0642exex554599.85603.73604.30.006546.1695.138.940.63
GC_Trib80RCH2603852.409100exex1757596.51602.7602.64604.270.0105210.54236.03100.620.85
GC_Trib80RCH2603852.40950exex1458596.51602.68603.780.007388.8233.7799.890.71
GC_Trib80RCH2603852.40925exex1261596.51602.39603.370.007038.24206.4890.580.69
GC_Trib80RCH2603852.40910exex1013596.51601.92602.770.006947.6167.2776.180.67
GC_Trib80RCH2603852.4095exex808596.51601.48602.210.006786.95136.4364.760.65
GC_Trib80RCH2603852.4092exex554596.51600.83601.380.006575.9899.0749.650.62
GC_Trib80RCH2603488.875100exex1757593.49600.44600.44601.220.005938.42428.99304.630.65
GC_Trib80RCH2603488.87550exex1458593.49599.77599.72600.860.008739.32253.77161.860.77
GC_Trib80RCH2603488.87525exex1261593.49599.52599.27600.540.008588.89215.56139.60.76
GC_Trib80RCH2603488.87510exex1013593.49599.15598.75600.050.008088.13171.51100.560.73
C- 25
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib80RCH2603488.8755exex808593.49598.74598.33599.530.008017.51137.1773.020.71
GC_Trib80RCH2603488.8752exex554593.49598.13597.6598.760.007856.5598.8453.880.68
GC_Trib80RCH2603013.418100exex1757590.81597.32598.170.00538.16368.55150.270.62
GC_Trib80RCH2603013.41850exex1458590.81596.85597.660.005487.81300.36138.570.62
GC_Trib80RCH2603013.41825exex1261590.81596.48597.280.005727.58252.01129.630.63
GC_Trib80RCH2603013.41810exex1013590.81595.96596.730.006227.28187.22112.810.64
GC_Trib80RCH2603013.4185exex808590.81595.45596.140.00656.79142.5673.210.64
GC_Trib80RCH2603013.4182exex554590.81594.73595.290.00688699.1947.950.63
GC_Trib80RCH2602698.439100exex1757588.94595.37594.74596.410.005848.55250.98108.450.65
GC_Trib80RCH2602698.43950exex1458588.94595593.82595.920.005537.94213.8690.950.63
GC_Trib80RCH2602698.43925exex1261588.94594.69595.530.005427.52187.3976.060.61
GC_Trib80RCH2602698.43910exex1013588.94594.22594.930.005176.85157.0154.140.59
GC_Trib80RCH2602698.4395exex808588.94593.73594.320.004996.2134.7942.50.57
GC_Trib80RCH2602698.4392exex554588.94593.06593.480.004655.24107.3439.030.53
GC_Trib80RCH2602225.607100exex1757584.97590.67590.67592.180.015319.88179.8563.430.97
GC_Trib80RCH2602225.60750exex1458584.97590.23590.23591.640.017239.52153.558.11.01
GC_Trib80RCH2602225.60725exex1261584.97589.98589.98591.260.017729.08138.9554.941.01
GC_Trib80RCH2602225.60710exex1013584.97589.53589.53590.720.018338.76115.6249.411.01
GC_Trib80RCH2602225.6075exex808584.97589.14589.14590.210.01838.2997.4745.210.99
GC_Trib80RCH2602225.6072exex554584.97588.55588.55589.460.019577.6672.339.731
GC_Trib80RCH2601801.844100exex1757581.79587.87588.110.001674.39514.04217.040.35
GC_Trib80RCH2601801.84450exex1458581.79587.6587.810.001524.04457.99205.350.33
GC_Trib80RCH2601801.84425exex1261581.79587.39587.580.001443.81415.71196.070.32
GC_Trib80RCH2601801.84410exex1013581.79587.03587.20.001393.55348.75176.590.31
GC_Trib80RCH2601801.8445exex808581.79586.59586.760.001513.43275.61155.680.31
GC_Trib80RCH2601801.8442exex554581.79586.04586.170.001433195.6131.570.3
GC_Trib80RCH2601427.468100exex2009579.88586.73587.190.004146.51551.2269.130.53
GC_Trib80RCH2601427.46850exex1706579.88586.39586.890.004556.49461.86264.430.55
GC_Trib80RCH2601427.46825exex1487579.88586.11586.640.0056.5387.37260.450.57
GC_Trib80RCH2601427.46810exex1200579.88585.68586.220.005536.34294.2177.430.59
GC_Trib80RCH2601427.4685exex941579.88585.23585.720.005795.93225.72136.790.59
GC_Trib80RCH2601427.4682exex665579.88584.66584.07585.10.006345.43154.81114.470.6
GC_Trib80RCH260923.257100exex2009577583.97584.870.005988.2397.39187.540.65
GC_Trib80RCH260923.25750exex1706577583.63584.450.00587.7336.8164.020.63
GC_Trib80RCH260923.25725exex1487577583.38584.110.005517.23297.83146.920.61
GC_Trib80RCH260923.25710exex1200577583583.630.005146.58246.11130.570.58
GC_Trib80RCH260923.2575exex941577582.58583.110.004855.95195.03115.550.55
GC_Trib80RCH260923.2572exex665577581.92582.360.004785.32124.9740.410.53
GC_Trib80RCH260518.491100exex2009574.35581.34582.370.006468.37286.0476.790.64
GC_Trib80RCH260518.49150exex1706574.35580.51581.620.008468.64224.9770.070.72
GC_Trib80RCH260518.49125exex1487574.35579.93581.10.010318.78186.165.140.79
GC_Trib80RCH260518.49110exex1200574.35579.2579580.410.013358.86141.9556.070.88
GC_Trib80RCH260518.4915exex941574.35578.55578.53579.760.016468.82108.1248.020.98
C- 26
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib80RCH260518.4912exex665574.35577.96577.96578.990.017218.1281.940.831.01
GC_Trib80RCH260305.682100exex2009570.58578.03577.52580.130.0136111.61173.0332.190.88
GC_Trib80RCH260305.68250exex1706570.58577.89576.93579.480.0105210.12168.6131.780.77
GC_Trib80RCH260305.68225exex1487570.58577.53576.47578.920.009669.46157.1630.70.74
GC_Trib80RCH260305.68210exex1200570.58577.03575.86578.140.008398.44142.1629.990.68
GC_Trib80RCH260305.6825exex941570.58576.5575.22577.360.007227.44126.4629.150.63
GC_Trib80RCH260305.6822exex665570.58575.81574.46576.420.005876.23106.7928.010.56
GC_Trib80RCH260290Bridge
GC_Trib80RCH260280.618100exex2009571.38578.12577.24579.630.008739.86203.7344.380.76
GC_Trib80RCH260280.61850exex1706571.38577.72576.755790.008119.0718842.630.73
GC_Trib80RCH260280.61825exex1487571.38577.4576.38578.510.007648.47175.4641.340.7
GC_Trib80RCH260280.61810exex1200571.38576.92575.82577.830.007037.6415739.420.66
GC_Trib80RCH260280.6185exex941571.38576.38575.26577.120.006646.88136.7437.40.63
GC_Trib80RCH260280.6182exex665571.38575.69574.57576.240.005875.95111.7834.850.59
GC_Trib80RCH26061.304100exex2009571.35577.05575.63577.870.0057.32298.6285.250.59
GC_Trib80RCH26061.30450exex1706571.35576.62575.23577.350.0056.88262.39830.58
GC_Trib80RCH26061.30425exex1487571.35576.29574.93576.950.0056.53234.7681.240.57
GC_Trib80RCH26061.30410exex1200571.35575.8574.51576.360.0056200.0956.140.56
GC_Trib80RCH26061.3045exex941571.35575.25574.09575.730.005015.53170.153.750.55
GC_Trib80RCH26061.3042exex665571.35574.59573.6574.970.0054.91135.3551.310.53
GC_Trib50RCH2302176.204100exex290575.19582.67582.6700.182097.74437.990.01
GC_Trib50RCH2302176.20450exex243575.19582.6582.600.162070.35436.720.01
GC_Trib50RCH2302176.20425exex216575.19582.55582.5500.142049.07435.730.01
GC_Trib50RCH2302176.20410exex172575.19582.49582.4900.112019.04434.320.01
GC_Trib50RCH2302176.2045exex136575.19582.43582.4300.091995.19433.20.01
GC_Trib50RCH2302176.2042exex97575.19582.4582.400.061983.91432.670
GC_Trib50RCH2301953.635100exex290575.06582.66582.671E-060.331227.35611.790.02
GC_Trib50RCH2301953.63550exex243575.06582.6582.61E-060.281189.31610.470.02
GC_Trib50RCH2301953.63525exex216575.06582.55582.5500.251159.67609.440.02
GC_Trib50RCH2301953.63510exex172575.06582.48582.4900.21117.8607.970.01
GC_Trib50RCH2301953.6355exex136575.06582.43582.4300.161084.51606.810.01
GC_Trib50RCH2301953.6352exex97575.06582.4582.400.121068.78606.260.01
GC_Trib50RCH2301888.733100exex290575582.65577.59582.664E-060.81775.52589.020.05
GC_Trib50RCH2301888.73350exex243575582.58577.31582.68E-061.09523.58586.910.07
GC_Trib50RCH2301888.73325exex216575582.54577.16582.556E-060.99499.28585.60.07
GC_Trib50RCH2301888.73310exex172575582.47576.88582.484E-060.8465.25583.760.05
GC_Trib50RCH2301888.7335exex136575582.42576.63582.433E-060.65437.94582.280.04
GC_Trib50RCH2301888.7332exex97575582.4576.33582.41E-060.47425.96581.630.03
GC_Trib50RCH2301800Culvert
GC_Trib50RCH2301767.415100exex290559.92562.77562.77564.120.026539.3131.1536.41
GC_Trib50RCH2301767.41550exex243559.92562.47562.47563.670.02778.7927.6533.491
C- 27
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib50RCH2301767.41525exex216559.92562.3562.3563.40.028118.4225.6631.731
GC_Trib50RCH2301767.41510exex172559.92561.99561.99562.930.029647.8122.0228.541
GC_Trib50RCH2301767.4155exex136559.92561.71561.71562.520.031337.2318.8125.711
GC_Trib50RCH2301767.4152exex97559.92561.39561.39562.030.033536.4415.0522.371
GC_Trib50RCH2301705.512100exex290551.2561.75554.75561.820.000352.14135.3624.820.13
GC_Trib50RCH2301705.51250exex243551.2561.48554.42561.530.000271.85131.0523.960.11
GC_Trib50RCH2301705.51225exex216551.2561.29554.2561.340.000231.69128.0623.410.11
GC_Trib50RCH2301705.51210exex172551.2560.94553.82560.970.000171.41122.4122.360.09
GC_Trib50RCH2301705.5125exex136551.2560.57553.47560.60.000131.17116.5521.280.08
GC_Trib50RCH2301705.5122exex97551.2560.02553.05560.038.4E-050.9107.6319.260.06
GC_Trib50RCH2301673.774100exex290552.37561.64556.23561.780.001943.05101.1733.810.22
GC_Trib50RCH2301673.77450exex243552.37561.39555.82561.50.001652.7393.2329.310.2
GC_Trib50RCH2301673.77425exex216552.37561.21555.58561.310.001472.5388.3226.180.19
GC_Trib50RCH2301673.77410exex172552.37560.87555.15560.950.001172.1780.4921.060.16
GC_Trib50RCH2301673.7745exex136552.37560.52554.76560.580.000931.8473.9416.660.14
GC_Trib50RCH2301673.7742exex97552.37559.98554.3560.020.000561.4666.3911.450.11
GC_Trib50RCH2301562.319100exex290552.02560.52560.52561.10.028516.3354.0554.390.77
GC_Trib50RCH2301562.31950exex243552.02560.37560.22560.90.027885.9546.0948.280.75
GC_Trib50RCH2301562.31925exex216552.02560.28559.87560.760.02665.6341.9444.770.73
GC_Trib50RCH2301562.31910exex172552.02560.12559.56560.50.02364535.2435.270.67
GC_Trib50RCH2301562.3195exex136552.02559.89559.3560.210.022824.5729.7919.120.64
GC_Trib50RCH2301562.3192exex97552.02559.46558.81559.750.02474.3222.4715.480.63
GC_Trib50RCH2301089.789100exex290550.74556.92557.130.00383.6980.7334.380.4
GC_Trib50RCH2301089.78950exex243550.74556.62556.810.004033.5170.3632.980.4
GC_Trib50RCH2301089.78925exex216550.74556.43556.610.00423.3964.2631.780.4
GC_Trib50RCH2301089.78910exex172550.74556.1556.260.004583.1854.1829.620.41
GC_Trib50RCH2301089.7895exex136550.74555.77555.920.004753.024526.490.41
GC_Trib50RCH2301089.7892exex97550.74555.34555.460.00462.8234.4221.670.39
GC_Trib50RCH230880.229100exex290550.1555.83556.190.005284.9265.0626.980.48
GC_Trib50RCH230880.22950exex243550.1555.52555.840.005234.5857.0625.140.47
GC_Trib50RCH230880.22925exex216550.1555.33555.620.005174.3752.4424.010.46
GC_Trib50RCH230880.22910exex172550.1555555.240.005063.9744.8222.020.45
GC_Trib50RCH230880.2295exex136550.1554.67554.880.005123.6337.9420.060.44
GC_Trib50RCH230880.2292exex97550.1554.27554.420.005273.2130.2717.60.43
GC_Trib50RCH230669.271100exex290549.6554.34554.820.008055.5853.4723.610.58
GC_Trib50RCH230669.27150exex243549.6554.05554.470.008165.2247.0120.620.58
GC_Trib50RCH230669.27125exex216549.6553.86554.250.00827543.3719.590.57
GC_Trib50RCH230669.27110exex172549.6553.55553.880.008474.637.3718.30.57
GC_Trib50RCH230669.2715exex136549.6553.21553.50.00854.3331.4316.90.56
GC_Trib50RCH230669.2712exex97549.6552.78553.030.008413.9424.6315.150.54
GC_Trib50RCH230339.014100exex290547.39551.91550.91552.410.006685.7856.6623.290.56
GC_Trib50RCH230339.01450exex243547.39551.59550.63552.030.006685.4149.4721.770.55
GC_Trib50RCH230339.01425exex216547.39551.39550.46551.80.006685.1745.2620.830.54
C- 28
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib50RCH230339.01410exex172547.39551.04550.18551.390.006684.7438.2619.160.53
GC_Trib50RCH230339.0145exex136547.39550.72549.93551.010.006684.3232.3917.650.52
GC_Trib50RCH230339.0142exex97547.39550.33549.57550.550.006683.7825.8115.780.5
GC_Trib40RCH2001344.097100exex488599.77603.76603.76604.890.0246210.6780.637.740.96
GC_Trib40RCH2001344.09750exex409599.77603.53603.47604.510.022639.8272.1535.790.91
GC_Trib40RCH2001344.09725exex356599.77603.35603.21604.230.021249.2166.0734.320.87
GC_Trib40RCH2001344.09710exex287599.77603.09602.85603.830.019418.3557.2731.760.82
GC_Trib40RCH2001344.0975exex227599.77602.81602.5603.430.017897.5348.6728.990.78
GC_Trib40RCH2001344.0972exex162599.77602.45602.02602.920.015576.4438.8925.460.71
GC_Trib40RCH2001041.211100exex488595.79597.9597.9598.440.017737.0684.1178.530.91
GC_Trib40RCH2001041.21150exex409595.79597.75597.75598.260.018446.8272.8873.550.91
GC_Trib40RCH2001041.21125exex356595.79597.65597.65598.120.018816.6265.470.030.91
GC_Trib40RCH2001041.21110exex287595.79597.5597.5597.930.01936.355.4165.040.91
GC_Trib40RCH2001041.2115exex227595.79597.36597.36597.740.019545.9446.5460.270.9
GC_Trib40RCH2001041.2112exex162595.79597.17597.17597.50.020895.5535.6453.820.91
GC_Trib40RCH200688.165100exex488588.88591.08591.117.8E-051.45364.69198.260.18
GC_Trib40RCH200688.16550exex409588.88591589.55591.026.2E-051.26349.321960.16
GC_Trib40RCH200688.16525exex356588.88590.94589.5590.965.2E-051.14337.45194.230.14
GC_Trib40RCH200688.16510exex287588.88590.85590.873.9E-050.96320.99191.750.12
GC_Trib40RCH200688.1655exex227588.88590.72590.733.1E-050.82296.24187.960.11
GC_Trib40RCH200688.1652exex162588.88590.65590.661.8E-050.61282.85185.880.08
GC_Trib40RCH200601.151100exex488581.61591.08585.73591.099.3E-050.8611.08305.430.1
GC_Trib40RCH200601.15150exex409581.61591585.37591.017.4E-050.7586.95304.690.09
GC_Trib40RCH200601.15125exex356581.61590.94585.13590.956.2E-050.63568.26304.120.08
GC_Trib40RCH200601.15110exex287581.61590.85584.78590.864.7E-050.53542.12303.310.07
GC_Trib40RCH200601.1515exex227581.61590.72584.45590.733.7E-050.45502.51302.090.06
GC_Trib40RCH200601.1512exex162581.61590.65584.03590.652.2E-050.34480.82301.410.05
GC_Trib40RCH200560Culvert
GC_Trib40RCH200531.302100exex488581.39585.48585.48585.710.006196.25195.79291.440.56
GC_Trib40RCH200531.30250exex409581.39585.42585.42585.630.005425.8180.42290.050.53
GC_Trib40RCH200531.30225exex356581.39585.37585.37585.570.005035.53166.94288.830.51
GC_Trib40RCH200531.30210exex287581.39585.3585.3585.490.004415.12147.52287.070.47
GC_Trib40RCH200531.3025exex227581.39585.22585.22585.40.003964.78124.96285.020.45
GC_Trib40RCH200531.3022exex162581.39584584584.860.021548.4330.6821.750.97
GC_Trib40RCH200414.976100exex488578582.54583.230.013926.6773.2232.020.76
GC_Trib40RCH200414.97650exex409578582.28582.890.013716.2765.2429.990.75
GC_Trib40RCH200414.97625exex356578582.06582.630.013476.0458.9628.280.74
GC_Trib40RCH200414.97610exex287578581.75582.250.013235.6950.4426.090.72
GC_Trib40RCH200414.9765exex227578581.43580.96581.870.013185.3642.3523.910.71
GC_Trib40RCH200414.9762exex162578581.02580.57581.390.012874.8833.1921.180.69
GC_Trib40RCH200135.404100exex488574.78579.03578.74579.680.01158.212376.440.76
GC_Trib40RCH200135.40450exex409574.78578.77578.44579.390.01157.81104.4766.690.75
C- 29
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib40RCH200135.40425exex356574.78578.56578.19579.150.011527.4991.5460.420.74
GC_Trib40RCH200135.40410exex287574.78578.26577.93578.80.01157.0174.7551.160.73
GC_Trib40RCH200135.4045exex227574.78577.95577.66578.430.01156.4960.242.410.71
GC_Trib40RCH200135.4042exex162574.78577.57577.32577.980.01155.8345.1237.350.7
GC_Trib30RCH2209758.439100exex624648.7653.01653.01654.120.018588.6182.9149.710.92
GC_Trib30RCH2209758.43950exex534648.7652.73652.73653.790.020098.3269.8843.280.94
GC_Trib30RCH2209758.43925exex463648.7652.58652.47653.50.018667.7163.93400.89
GC_Trib30RCH2209758.43910exex379648.7652.38652.18653.130.017286.9756.1935.270.85
GC_Trib30RCH2209758.4395exex296648.7652.11651.85652.720.016776.2747.5429.10.82
GC_Trib30RCH2209758.4392exex209648.7651.7651.44652.20.01735.6636.9124.020.81
GC_Trib30RCH2209348.171100exex624641.31645.94645.94646.950.014788.72110.1172.570.84
GC_Trib30RCH2209348.17150exex534641.31645.73645.73646.650.014358.2295.2966.520.82
GC_Trib30RCH2209348.17125exex463641.31645.43645.43646.390.016328.1976.7356.970.86
GC_Trib30RCH2209348.17110exex379641.31645.1645.066460.017537.8360.1944.60.87
GC_Trib30RCH2209348.1715exex296641.31644.77644.69645.570.01817.2446.8736.760.87
GC_Trib30RCH2209348.1712exex209641.31644.4644.22645.020.017676.3134.8227.880.83
GC_Trib30RCH2208812.644100exex624632.4636.62636.62637.710.018339.27102.0656.190.93
GC_Trib30RCH2208812.64450exex534632.4636.35636.35637.390.019158.9287.651.490.94
GC_Trib30RCH2208812.64425exex463632.4636.22636.14637.110.017378.2380.8549.140.88
GC_Trib30RCH2208812.64410exex379632.4635.97635.85636.740.016867.669.1344.870.86
GC_Trib30RCH2208812.6445exex296632.4635.69635.55636.340.016216.8857.340.950.82
GC_Trib30RCH2208812.6442exex209632.4635.32635.15635.850.016486.142.8835.590.8
GC_Trib30RCH2208257.756100exex624621.77626.95626.95627.740.012157.4497.9272.110.74
GC_Trib30RCH2208257.75650exex534621.77626.65626.65627.490.014267.5278.1656.710.79
GC_Trib30RCH2208257.75625exex463621.77626.3626.17627.230.018217.7761.3239.070.88
GC_Trib30RCH2208257.75610exex379621.77626625.78626.830.018937.2852.0624.420.87
GC_Trib30RCH2208257.7565exex296621.77625.58625.4626.340.020086.9942.3521.890.89
GC_Trib30RCH2208257.7562exex209621.77625.11624.91625.750.020126.432.6419.270.87
GC_Trib30RCH2207858.133100exex624617.2621.22620.95621.990.011727.2594.3550.480.74
GC_Trib30RCH2207858.13350exex534617.2621620.66621.70.011616.8683.7646.240.73
GC_Trib30RCH2207858.13325exex463617.2620.82620.4621.450.011396.4975.5542.670.71
GC_Trib30RCH2207858.13310exex379617.2620.58621.120.010825.9466.1538.180.68
GC_Trib30RCH2207858.1335exex296617.2620.33620.760.009965.2756.9733.210.64
GC_Trib30RCH2207858.1332exex209617.2619.95620.270.009654.5745.7426.550.61
GC_Trib30RCH2207426.746100exex624612.17615.74615.74616.290.015967.52111.24104.730.81
GC_Trib30RCH2207426.74650exex534612.17615.63615.63616.130.015337.17100.1599.070.79
GC_Trib30RCH2207426.74625exex463612.17615.53615.53615.990.014986.990.4693.850.78
GC_Trib30RCH2207426.74610exex379612.17615.39615.39615.820.014986.6277.3786.30.77
GC_Trib30RCH2207426.7465exex296612.17615.21615.21615.620.015476.3862.8677.060.77
GC_Trib30RCH2207426.7462exex209612.17615.01615.01615.360.014455.7848.966.990.73
GC_Trib30RCH2207017.032100exex624607.9612.45612.870.005325.49137.7470.040.52
GC_Trib30RCH2207017.03250exex534607.9612.17612.570.005375.22119.8559.680.51
GC_Trib30RCH2207017.03225exex463607.9611.92612.280.005444.97105.7552.060.51
C- 30
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib30RCH2207017.03210exex379607.9611.57611.90.005814.7388.5247.460.52
GC_Trib30RCH2207017.0325exex296607.9611.16611.470.006614.570.16420.54
GC_Trib30RCH2207017.0322exex209607.9610.62610.12610.910.00884.3149.5234.860.59
GC_Trib30RCH2206664.922100exex624604608.25608.25609.550.019739.2775.1137.040.95
GC_Trib30RCH2206664.92250exex534604607.96607.96609.160.020948.8964.8832.550.97
GC_Trib30RCH2206664.92225exex463604607.74607.74608.840.02148.4757.8630.620.96
GC_Trib30RCH2206664.92210exex379604607.53607.41608.430.019587.6351.6728.810.91
GC_Trib30RCH2206664.9225exex296604607.35607.096080.015866.546.7427.280.8
GC_Trib30RCH2206664.9222exex209604607.22606.69607.590.010024.9343.126.090.63
GC_Trib30RCH2206254.143100exex624600604.25604.50.004724.87166.01113.390.48
GC_Trib30RCH2206254.14350exex534600604.04604.290.005364.96142.66108.820.5
GC_Trib30RCH2206254.14325exex463600603.86604.120.005945.01123.18101.880.52
GC_Trib30RCH2206254.14310exex379600603.63603.890.006594.99100.891.010.54
GC_Trib30RCH2206254.1435exex296600603.38603.640.007234.8979.4979.270.56
GC_Trib30RCH2206254.1432exex209600602.95603.30.010845.2550.1959.490.66
GC_Trib30RCH2206022.799100exex624596.78601.16601.16602.460.017469.5376.2133.210.92
GC_Trib30RCH2206022.79950exex534596.78600.87600.87602.080.018119.1266.6931.120.92
GC_Trib30RCH2206022.79925exex463596.78600.62600.62601.750.018638.7459.2229.380.92
GC_Trib30RCH2206022.79910exex379596.78600.29600.29601.320.019878.2949.7927.020.93
GC_Trib30RCH2206022.7995exex296596.78599.9599.9600.840.022227.8339.9424.320.96
GC_Trib30RCH2206022.7992exex209596.78599.72599.46600.290.015296.135.6323.030.78
GC_Trib30RCH2205528.997100exex624591.46596.755970.00234.15183.0487.960.35
GC_Trib30RCH2205528.99750exex534591.46596.58596.790.0023.77168.4981.630.33
GC_Trib30RCH2205528.99725exex463591.46596.41596.590.001793.47154.9475.260.31
GC_Trib30RCH2205528.99710exex379591.46596.12596.270.001613.13134.9764.720.29
GC_Trib30RCH2205528.9975exex296591.46595.28595.440.002443.2495.6741.210.34
GC_Trib30RCH2205528.9972exex209591.46593.93594.230.009834.3947.6430.190.62
GC_Trib30RCH2205182.431100exex804588.6596.82596.840.000111.34860.28217.860.09
GC_Trib30RCH2205182.43150exex690588.6596.64596.659.6E-051.21820.62214.660.08
GC_Trib30RCH2205182.43125exex595588.6596.46596.478.2E-051.1782.03211.490.07
GC_Trib30RCH2205182.43110exex490588.6596.16596.177.1E-051720.14206.310.07
GC_Trib30RCH2205182.4315exex384588.6595.3595.319.7E-051.06549.12191.120.08
GC_Trib30RCH2205182.4312exex273588.6593.89593.910.000281.5297.51162.970.12
GC_Trib30RCH2205087.411100exex804587.6596.82591.62596.837.4E-051.11978.77249.870.07
GC_Trib30RCH2205087.41150exex690587.6596.63591.26596.656.2E-051933.8243.60.06
GC_Trib30RCH2205087.41125exex595587.6596.45590.94596.465.2E-050.9890.48237.40.06
GC_Trib30RCH2205087.41110exex490587.6596.16590.56596.174.3E-050.8821.81227.880.05
GC_Trib30RCH2205087.4115exex384587.6595.26590.15595.290.000171.52309.45202.740.1
GC_Trib30RCH2205087.4112exex273587.6593.77589.67593.860.00052.41113.24158.720.17
GC_Trib30RCH2205075Culvert
GC_Trib30RCH2205051.211100exex804587.09591.11591.11593.020.0193211.172.4580.391
GC_Trib30RCH2205051.21150exex690587.09590.75590.75592.470.0198210.5265.673.441
C- 31
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib30RCH2205051.21125exex595587.09590.41590.41591.980.0206710.0459.2767.011
GC_Trib30RCH2205051.21110exex490587.09590.04590.04591.410.021519.452.1359.511
GC_Trib30RCH2205051.2115exex384587.09589.63589.63590.790.022528.6544.4236.521
GC_Trib30RCH2205051.2112exex273587.09589.15589.15590.080.024667.7535.2229.91
GC_Trib30RCH2204922.144100exex831584.99590.17590.240.000912.41432.31204.840.22
GC_Trib30RCH2204922.14450exex713584.99589.97590.030.00092.31390.69199.580.21
GC_Trib30RCH2204922.14425exex615584.99589.85589.90.000792.13368.34196.690.2
GC_Trib30RCH2204922.14410exex506584.99589.58589.630.000842.07315.83189.730.2
GC_Trib30RCH2204922.1445exex396584.99589.32589.360.000841.96266.11182.910.2
GC_Trib30RCH2204922.1442exex281584.99588.99589.020.000831.8207.54171.650.2
GC_Trib30RCH2204872.52100exex831583.71590.13588.4590.20.000852.69479.36225.690.22
GC_Trib30RCH2204872.5250exex713583.71589.93587.78589.990.00082.53436.2217.290.21
GC_Trib30RCH2204872.5225exex615583.71589.82587.42589.880.000682.29414.48211.90.19
GC_Trib30RCH2204872.5210exex506583.71589.55587.03589.60.000652.15361.48200.850.19
GC_Trib30RCH2204872.525exex396583.71589.29586.58589.330.000571.93312.32192.90.17
GC_Trib30RCH2204872.522exex281583.71588.96586.095890.000461.64253.91183.030.15
GC_Trib30RCH2204850Culvert
GC_Trib30RCH2204813.99100exex831582.8588.23588.23588.760.006157.05190.31159.350.56
GC_Trib30RCH2204813.9950exex713582.8587.86587.86588.560.007867.57140.01113.520.63
GC_Trib30RCH2204813.9925exex615582.8587.55587.55588.340.009087.75110.1289.440.66
GC_Trib30RCH2204813.9910exex506582.8586.78586.78588.570.0208710.8348.9834.180.98
GC_Trib30RCH2204813.995exex396582.8586.25586.25587.760.021579.9441.4828.730.97
GC_Trib30RCH2204813.992exex281582.8585.78585.59586.840.018458.2934.9823.760.88
GC_Trib30RCH2204732.966100exex831581.59587.58587.760.001894267.97106.330.32
GC_Trib30RCH2204732.96650exex713581.59587.28587.440.001933.87236.1699.10.32
GC_Trib30RCH2204732.96625exex615581.59587.05587.20.001873.68214.2294.590.31
GC_Trib30RCH2204732.96610exex506581.59586.61586.770.002243.75174.3288.110.34
GC_Trib30RCH2204732.9665exex396581.59586.26586.410.002313.57144.182.870.34
GC_Trib30RCH2204732.9662exex281581.59585.9586.020.00213.16115.1375.880.31
GC_Trib30RCH2204694.598100exex831581.3587.2586.29587.60.004416.58255.58108.70.5
GC_Trib30RCH2204694.59850exex713581.3586.87586.04587.270.004586.43221.599.380.51
GC_Trib30RCH2204694.59825exex615581.3586.69585.67587.040.004165.97203.5894.120.48
GC_Trib30RCH2204694.59810exex506581.3586.19585.34586.590.004956.06159.6282.510.51
GC_Trib30RCH2204694.5985exex396581.3585.92584.95586.250.004145.31138.6776.850.46
GC_Trib30RCH2204694.5982exex281581.3585.71584.39585.910.002694.13122.4471.60.37
GC_Trib30RCH2204665Culvert
GC_Trib30RCH2204658.317100exex831581586.57586.57587.550.01079.48166.3684.20.76
GC_Trib30RCH2204658.31750exex713581586.28586.28587.250.010859.17143.6276.30.76
GC_Trib30RCH2204658.31725exex615581585.94585.94586.970.012079.17118.8967.410.79
GC_Trib30RCH2204658.31710exex506581585.49585.49586.550.013539.0191.1756.330.82
GC_Trib30RCH2204658.3175exex396581585.03585.03586.050.01468.5767.5245.590.83
GC_Trib30RCH2204658.3172exex281581584.31584.31585.350.019268.3640.8328.610.92
C- 32
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib30RCH2204550.854100exex831579.77584.42584.870.00775.41155.267.790.59
GC_Trib30RCH2204550.85450exex713579.77584.15584.570.008115.17138.1262.460.6
GC_Trib30RCH2204550.85425exex615579.77583.91584.290.008524.99123.1957.970.6
GC_Trib30RCH2204550.85410exex506579.77583.56583.920.009044.87103.8352.990.61
GC_Trib30RCH2204550.8545exex396579.77583.14583.490.010024.7882.84470.63
GC_Trib30RCH2204550.8542exex281579.77582.59582.13582.940.012034.7359.3939.230.68
GC_Trib30RCH2204354.023100exex831576.21581.78581.47582.760.015217.9210744.750.83
GC_Trib30RCH2204354.02350exex713576.21581.55581.18582.410.014957.4296.9641.820.81
GC_Trib30RCH2204354.02325exex615576.21581.34580.93582.10.014726.9688.5239.190.79
GC_Trib30RCH2204354.02310exex506576.21581.1580.58581.730.013786.3779.4136.160.76
GC_Trib30RCH2204354.0235exex396576.21580.76580.13581.290.012465.8667.6132.310.71
GC_Trib30RCH2204354.0232exex281576.21580.31579.6580.730.010485.1854.2827.330.65
GC_Trib30RCH2204135.271100exex831574.44579.85580.350.007536166.2754.920.53
GC_Trib30RCH2204135.27150exex713574.44579.41579.910.008385.86143.1852.280.55
GC_Trib30RCH2204135.27125exex615574.44579.07579.530.009025.68125.3150.140.56
GC_Trib30RCH2204135.27110exex506574.44578.62579.070.010415.52103.547.40.58
GC_Trib30RCH2204135.2715exex396574.44578.16578.580.01215.2882.3645.130.61
GC_Trib30RCH2204135.2712exex281574.44577.64578.010.014734.9260.1239.690.65
GC_Trib30RCH2203953.275100exex1279571.8578.32579.150.005897.39199.9677.880.63
GC_Trib30RCH2203953.27550exex1084571.8577.94578.670.005836.91172.7560.260.62
GC_Trib30RCH2203953.27525exex934571.8577.65578.290.005666.47155.7257.010.6
GC_Trib30RCH2203953.27510exex754571.8577.25577.790.005575.92133.5252.130.58
GC_Trib30RCH2203953.2755exex582571.8576.78577.230.005635.37110.6746.570.57
GC_Trib30RCH2203953.2752exex403571.8576.19576.540.005794.7585.0239.410.56
GC_Trib30RCH2203583.837100exex1279569.91575.73575.4576.650.007748.08220.9105.810.71
GC_Trib30RCH2203583.83750exex1084569.91575.51574.97576.30.007067.42197.13104.260.67
GC_Trib30RCH2203583.83725exex934569.91575.27574.6575.990.006857172.32102.610.66
GC_Trib30RCH2203583.83710exex754569.91574.93574.16575.550.006596.41139.6486.980.63
GC_Trib30RCH2203583.8375exex582569.91574.55575.050.006185.71110.767.530.6
GC_Trib30RCH2203583.8372exex403569.91574.07574.430.005664.8284.1742.480.56
GC_Trib30RCH2203237.97100exex1279567.79572.22572.22573.410.011429.23191.7197.090.86
GC_Trib30RCH2203237.9750exex1084567.79571.81571.81573.010.013079.12155.484.570.9
GC_Trib30RCH2203237.9725exex934567.79571.52571.52572.670.013998.84131.5476.410.92
GC_Trib30RCH2203237.9710exex754567.79571.15571.15572.20.01518.38105.0766.180.93
GC_Trib30RCH2203237.975exex582567.79570.74570.74571.690.016947.8880.2554.890.96
GC_Trib30RCH2203237.972exex403567.79570.25570.25571.050.020087.256.7741.461
GC_Trib30RCH2202924.848100exex1279563.46569.7570.430.00667.07226.4480.50.54
GC_Trib30RCH2202924.84850exex1084563.46569.16569.860.00726.87185.3769.450.56
GC_Trib30RCH2202924.84825exex934563.46569.06569.610.005786.07178.7167.030.5
GC_Trib30RCH2202924.84810exex754563.46568.55569.030.005745.6147.7754.370.49
GC_Trib30RCH2202924.8485exex582563.46567.99568.380.005645.04121.1440.660.47
GC_Trib30RCH2202924.8482exex403563.46567.32567.610.00554.3395.1436.850.45
C- 33
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib30RCH2202497.137100exex1279559.8566.48567.50.0070810.42284.9999.420.74
GC_Trib30RCH2202497.13750exex1084559.8565.96566.850.00699.69238.8777.180.72
GC_Trib30RCH2202497.13725exex934559.8565.09566.290.0106910.79175.4868.020.87
GC_Trib30RCH2202497.13710exex754559.8564.59565.690.0109310.14143.7159.80.86
GC_Trib30RCH2202497.1375exex582559.8564.06565.040.01119.36114.352.770.85
GC_Trib30RCH2202497.1372exex403559.8563.41564.260.011578.4282.2245.360.84
GC_Trib30RCH2202360.625100exex1279559.01564.18563.73566.110.0135512.02173.2398.010.98
GC_Trib30RCH2202360.62550exex1084559.01564.01563.67565.580.0113910.75156.9695.120.89
GC_Trib30RCH2202360.62525exex934559.01563.83564.930.008759.18146.8748.310.78
GC_Trib30RCH2202360.62510exex754559.01563.56564.410.007227.99134.1746.790.7
GC_Trib30RCH2202360.6255exex582559.01562.98563.720.007657.41107.6443.460.7
GC_Trib30RCH2202360.6252exex403559.01562.7563.140.004965.6595.9241.90.56
GC_Trib30RCH2201985.277100exex1279557.31562.44562.13562.80.004816.25411.382680.56
GC_Trib30RCH2201985.27750exex1084557.31562.26562.60.004675.97364.44255.440.55
GC_Trib30RCH2201985.27725exex934557.31562.13562.450.004365.63331.67246.290.53
GC_Trib30RCH2201985.27710exex754557.31561.92562.220.004195.29280.23229.450.51
GC_Trib30RCH2201985.2775exex582557.31561.99560.98562.150.002193.88296.83235.930.37
GC_Trib30RCH2201985.2772exex403557.31561.38561.60.003194.11171.2164.490.43
GC_Trib30RCH2201712.499100exex1279556.52560.88560.88561.30.00686.45313.7309.170.64
GC_Trib30RCH2201712.49950exex1084556.52560.77560.77561.170.00646.11280.6302.760.62
GC_Trib30RCH2201712.49925exex934556.52560.66560.66561.060.006415.96246.4295.990.62
GC_Trib30RCH2201712.49910exex754556.52560.54560.54560.90.005865.53210.5288.720.58
GC_Trib30RCH2201712.4995exex582556.52559.7559.7560.740.01948.270.9834.71.01
GC_Trib30RCH2201712.4992exex403556.52559.77560.230.008465.573.3135.030.67
GC_Trib30RCH2201444.653100exex1279554.99560.53560.550.000362.011092.48484.620.16
GC_Trib30RCH2201444.65350exex1084554.99560.3560.330.000351.93985.23476.060.16
GC_Trib30RCH2201444.65325exex934554.99560.12560.140.000341.86896.96468.890.15
GC_Trib30RCH2201444.65310exex754554.99559.8559.820.000371.85750.76448.480.16
GC_Trib30RCH2201444.6535exex582554.99559.19559.230.000732.33493.56400.350.22
GC_Trib30RCH2201444.6532exex403554.99558.34558.34558.580.00444.77181.72332.780.51
GC_Trib30RCH2201175.477100exex1557552.61560.5560.519.8E-051.262010.47594.550.09
GC_Trib30RCH2201175.47750exex1302552.61560.28560.298.5E-051.151880.34589.350.08
GC_Trib30RCH2201175.47725exex1118552.61560.1560.117.5E-051.061772.07584.990.08
GC_Trib30RCH2201175.47710exex891552.61559.78559.796.6E-050.961589.58570.940.07
GC_Trib30RCH2201175.4775exex686552.61559.18559.187.9E-050.971253.08538.260.08
GC_Trib30RCH2201175.4772exex468552.61557.44557.470.000551.96444.66356.690.19
GC_Trib30RCH220995.299100exex1557550.72560.48556.92560.490.000141.781796.16447.080.1
GC_Trib30RCH220995.29950exex1302550.72560.26556.42560.280.000111.61700.03445.260.09
GC_Trib30RCH220995.29925exex1118550.72560.08556.03560.099.7E-051.461619.4443.730.09
GC_Trib30RCH220995.29910exex891550.72559.77555.51559.788.1E-051.31481.34440.590.08
GC_Trib30RCH220995.2995exex686550.72558.92554.92559.10.000793.79257.09431.60.24
GC_Trib30RCH220995.2992exex468550.72557.15553.99557.310.000993.58182.51284.520.26
GC_Trib30RCH220950Culvert
C- 34
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib30RCH220941.201100exex1557550.6557.91556.21559.020.005148.55189.89169.320.61
GC_Trib30RCH220941.20150exex1302550.6557.56555.72558.440.004387.59178.64146.130.55
GC_Trib30RCH220941.20125exex1118550.6557.44555.35558.120.003456.65175138.630.49
GC_Trib30RCH220941.20110exex891550.6557.1554.84557.580.002715.65163.86121.50.43
GC_Trib30RCH220941.2015exex686550.6556.63554.32556.980.002194.78148.88111.910.38
GC_Trib30RCH220941.2012exex468550.6555.7553.7555.950.002074.04119.1699.480.36
GC_Trib30RCH220639.014100exex1557548.75556.74557.370.004367.67395.11202.050.56
GC_Trib30RCH220639.01450exex1302548.75556.05556.870.006068.32272.44153.320.65
GC_Trib30RCH220639.01425exex1118548.75555.51556.520.007858.8199.33122.040.72
GC_Trib30RCH220639.01410exex891548.75554.99554.99556.050.008988.69143.1991.750.76
GC_Trib30RCH220639.0145exex686548.75554.16553.93555.380.013139.0386.8843.610.88
GC_Trib30RCH220639.0142exex468548.75553.43553.27554.420.01458.0362.4530.040.89
GC_Trib30RCH220322.308100exex1557547.6555.49552.76556.170.003617.15272.2646.720.46
GC_Trib30RCH220322.30850exex1302547.6554.81552.29555.410.00366.7240.7145.010.46
GC_Trib30RCH220322.30825exex1118547.6554.27551.89554.810.003616.33216.843.680.45
GC_Trib30RCH220322.30810exex891547.6553.54551.425540.00365.81185.8241.910.44
GC_Trib30RCH220322.3085exex686547.6552.81550.91553.190.00365.27155.7240.070.43
GC_Trib30RCH220322.3082exex468547.6551.9550.32552.20.00364.56120.4737.820.41
GC_Trib220RCH500771.025100exex481705710.98711.020.000371.7306.8197.360.14
GC_Trib220RCH500771.02550exex372705709.77709.830.000771.99198.1882.040.2
GC_Trib220RCH500771.02525exex309705709.04709.110.001382.24142.3569.920.25
GC_Trib220RCH500771.02510exex221705707.93708.070.005132.9774.552.60.44
GC_Trib220RCH500771.0255exex153705706.91706.86707.310.027875.0630.2434.120.95
GC_Trib220RCH500771.0252exex82705706.49706.49706.830.035564.6917.4726.491.02
GC_Trib220RCH500610.36100exex481703.2710.92705.7710.970.000251.98311.1167.70.13
GC_Trib220RCH500610.3650exex372703.2709.7705.36709.750.000311.95241.0958.270.14
GC_Trib220RCH500610.3625exex309703.2708.95705.157090.000351.92199.7453.430.14
GC_Trib220RCH500610.3610exex221703.2707.81704.82707.850.000441.83142.5346.510.16
GC_Trib220RCH500610.365exex153703.2706.81704.53706.860.000551.7299.540.30.17
GC_Trib220RCH500610.362exex82703.2705.61704.16705.640.000751.4957.3228.80.18
GC_Trib220RCH500400Culvert
GC_Trib220RCH500177.997100exex481696.6699.69698.97700.130.007415.3889.9756.940.59
GC_Trib220RCH500177.99750exex372696.6699.29698.67699.670.007814.9675.8351.330.59
GC_Trib220RCH500177.99725exex309696.6699.05698.51699.380.008074.6767.0647.850.58
GC_Trib220RCH500177.99710exex221696.6698.67698.22698.940.008744.2153.2842.380.59
GC_Trib220RCH500177.9975exex153696.6698.33697.95698.540.009583.7641.1437.530.59
GC_Trib220RCH500177.9972exex82696.6697.89697.58698.040.010863.0926.5431.030.59
GC_Trib220RCH50029.17100exex481693.25697.01697.01698.110.024158.4357.0725.891
GC_Trib220RCH50029.1750exex372693.25696.58696.58697.570.024987.9846.6223.61
GC_Trib220RCH50029.1725exex309693.25696.3696.3697.220.026047.7140.0622.031.01
GC_Trib220RCH50029.1710exex221693.25695.85695.85696.650.027287.1730.8119.621.01
GC_Trib220RCH50029.175exex153693.25695.44695.44696.120.02886.6223.1217.361.01
C- 35
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib220RCH50029.172exex82693.25694.89694.89695.390.030995.714.3914.371
GC_Trib210RCH5104190.791100exex244733.74738.05738.080.000441.61242.23114.830.14
GC_Trib210RCH5104190.79150exex205733.74737.87737.890.000381.46221.49109.420.13
GC_Trib210RCH5104190.79125exex178733.74737.68737.70.000351.36201.37103.490.12
GC_Trib210RCH5104190.79110exex142733.74737.07737.10.000461.38145.1782.050.14
GC_Trib210RCH5104190.7915exex111733.74736.34736.370.000731.4794.9756.620.16
GC_Trib210RCH5104190.7912exex77733.74735.5735.530.001531.6155.0741.620.22
GC_Trib210RCH5104093.057100exex244731.78738.02734.2738.050.000311.59276.56121.910.12
GC_Trib210RCH5104093.05750exex205731.78737.84733.98737.860.000261.41255.59114.460.11
GC_Trib210RCH5104093.05725exex178731.78737.65733.82737.670.000231.3234.77109.080.1
GC_Trib210RCH5104093.05710exex142731.78736.98733.59737.040.000581.9971.1881.330.16
GC_Trib210RCH5104093.0575exex111731.78736.25733.36736.30.000611.8460.466.830.16
GC_Trib210RCH5104093.0572exex77731.78735.4733.08735.440.000641.6147.8340.770.16
GC_Trib210RCH5104000Culvert
GC_Trib210RCH5103944.156100exex244730.3732.18731.45732.340.005813.3581.3856.280.44
GC_Trib210RCH5103944.15650exex205730.3732.02731.33732.160.005643.173.5754.880.43
GC_Trib210RCH5103944.15625exex178730.3731.9731.26732.020.005482.9167.9354.130.42
GC_Trib210RCH5103944.15610exex142730.3731.73731.14731.830.00532.6459.5953.090.4
GC_Trib210RCH5103944.1565exex111730.3731.56731.03731.640.005142.3751.5752.080.39
GC_Trib210RCH5103944.1562exex77730.3731.34730.9731.40.004982.0441.3550.80.37
GC_Trib210RCH5103809.606100exex244729.48731.3730.72731.470.007393.4377.1957.460.48
GC_Trib210RCH5103809.60650exex205729.48731.14730.61731.30.007453.2168.5155.840.48
GC_Trib210RCH5103809.60625exex178729.48731.03730.53731.170.007493.0562.2754.670.47
GC_Trib210RCH5103809.60610exex142729.48730.87730.42730.990.007542.853.55530.46
GC_Trib210RCH5103809.6065exex111729.48730.72730.32730.810.007542.5445.6251.430.45
GC_Trib210RCH5103809.6062exex77729.48730.53730.2730.60.007492.1936.1549.490.44
GC_Trib210RCH5103533.142100exex244724.59727.02727.02727.810.029317.2336.4326.140.97
GC_Trib210RCH5103533.14250exex205724.59726.83726.83727.550.030766.8631.724.920.98
GC_Trib210RCH5103533.14225exex178724.59726.69726.69727.360.03226.5928.323.960.99
GC_Trib210RCH5103533.14210exex142724.59726.5726.5727.080.034346.1523.7622.610.99
GC_Trib210RCH5103533.1425exex111724.59726.31726.31726.820.037095.7119.721.331
GC_Trib210RCH5103533.1422exex77724.59726.09726.09726.50.041695.1215.0719.771.02
GC_Trib210RCH5103049.75100exex281719.53726.09726.10.000121.1585.9192.130.08
GC_Trib210RCH5103049.7550exex240719.53725.53725.540.000141.13481.2178.390.08
GC_Trib210RCH5103049.7525exex209719.53725.08725.090.000171.16403.08166.580.09
GC_Trib210RCH5103049.7510exex168719.53724.45724.460.000211.2303.85150.240.1
GC_Trib210RCH5103049.755exex131719.53723.83723.850.000281.25215.86131.520.11
GC_Trib210RCH5103049.752exex91719.53723.07723.090.000371.27129.2195.050.12
GC_Trib210RCH5102951.358100exex281719.52725.93721.87726.050.000822.88114.42192.440.2
GC_Trib210RCH5102951.35850exex240719.52725.39721.66725.490.000822.7103.99175.720.2
GC_Trib210RCH5102951.35825exex209719.52724.94721.48725.030.000812.5695.6162.270.19
GC_Trib210RCH5102951.35810exex168719.52724.33721.23724.410.000792.3484.01140.660.19
C- 36
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib210RCH5102951.3585exex131719.52723.73720.99723.790.000772.1172.51112.250.18
GC_Trib210RCH5102951.3582exex91719.52722.99720.69723.030.000741.8158.4474.850.17
GC_Trib210RCH5102900Culvert
GC_Trib210RCH5102814.32100exex281716.59719.31718.54719.730.009095.2656.5154.780.58
GC_Trib210RCH5102814.3250exex240716.59719.09718.37719.460.008984.9351.0946.70.56
GC_Trib210RCH5102814.3225exex209716.59718.91718.2719.240.008984.6846.5244.470.56
GC_Trib210RCH5102814.3210exex168716.59718.66718718.940.008784.2740.3841.420.54
GC_Trib210RCH5102814.325exex131716.59718.4717.8718.630.00863.8434.4838.310.52
GC_Trib210RCH5102814.322exex91716.59718.08717.56718.250.008483.3127.534.360.5
GC_Trib210RCH5102688.169100exex281715.53718.29718.630.007834.8873.5849.040.54
GC_Trib210RCH5102688.16950exex240715.53718.08718.380.007814.596439.150.53
GC_Trib210RCH5102688.16925exex209715.53717.9718.170.007694.3257.7534.820.52
GC_Trib210RCH5102688.16910exex168715.53717.67717.90.007493.9549.8133.120.5
GC_Trib210RCH5102688.1695exex131715.53717.44717.620.007223.5642.331.430.48
GC_Trib210RCH5102688.1692exex91715.53717.15717.290.006723.0333.6229.350.45
GC_Trib210RCH5102456.436100exex281713.56716.36716.670.00924.4763.737.510.56
GC_Trib210RCH5102456.43650exex240713.56716.23716.490.008494.158.935.220.53
GC_Trib210RCH5102456.43625exex209713.56716.09716.320.008233.8554.4232.940.51
GC_Trib210RCH5102456.43610exex168713.56715.83716.040.008593.6346.330.080.52
GC_Trib210RCH5102456.4365exex131713.56715.54715.720.009363.4837.6827.870.53
GC_Trib210RCH5102456.4362exex91713.56715.15715.320.01123.3227.4424.990.56
GC_Trib210RCH5102032.662100exex281711.2714.11714.210.003822.64136.51327.640.35
GC_Trib210RCH5102032.66250exex240711.2714.04714.140.003762.55111.66327.380.35
GC_Trib210RCH5102032.66225exex209711.2713.96714.050.003692.4487.73174.10.34
GC_Trib210RCH5102032.66210exex168711.2713.77712.74713.850.003362.2175.9851.70.32
GC_Trib210RCH5102032.6625exex131711.2713.59713.650.002931.9766.5448.650.3
GC_Trib210RCH5102032.6622exex91711.2713.33713.370.002411.6654.6944.530.26
GC_Trib210RCH5101745.043100exex281710.87712.57712.38712.680.007932.88109.26172.50.48
GC_Trib210RCH5101745.04350exex240710.87712.51712.34712.610.008082.898.03170.10.48
GC_Trib210RCH5101745.04325exex209710.87712.46712.550.007852.6890.44168.450.47
GC_Trib210RCH5101745.04310exex168710.87712.4712.470.007492.5179.51166.060.45
GC_Trib210RCH5101745.0435exex131710.87712.33712.21712.40.007082.3268.54163.620.43
GC_Trib210RCH5101745.0432exex91710.87712.24712.14712.30.00662.0954.3160.40.41
GC_Trib210RCH5101400.883100exex466704.88706.67706.67707.150.028655.7685.2292.820.92
GC_Trib210RCH5101400.88350exex393704.88706.56706.567070.029145.4575.387.530.91
GC_Trib210RCH5101400.88325exex340704.88706.45706.45706.880.031315.366.5182.570.93
GC_Trib210RCH5101400.88310exex272704.88706.31706.31706.70.034685.0455.2375.740.95
GC_Trib210RCH5101400.8835exex212704.88706.17706.17706.520.039134.7645.0268.960.98
GC_Trib210RCH5101400.8832exex147704.88706706706.290.04634.3333.9160.721.02
GC_Trib210RCH5101158.282100exex466697.79703.25700.06703.360.000962.66182.92140.410.21
GC_Trib210RCH5101158.28250exex393697.79702.66699.85702.760.001052.56159.96111.370.21
GC_Trib210RCH5101158.28225exex340697.79702.21699.67702.310.001142.48142.3883.470.22
C- 37
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib210RCH5101158.28210exex272697.79701.6699.43701.680.001312.38118.4159.80.23
GC_Trib210RCH5101158.2825exex212697.79701.01699.2701.090.001542.2795.8450.80.24
GC_Trib210RCH5101158.2822exex147697.79700.31698.91700.380.0022.1369.5338.210.26
GC_Trib210RCH5101000Culvert
GC_Trib210RCH510872.823100exex466695.17697.6697.6698.660.023968.2856.2837.21
GC_Trib210RCH510872.82350exex393695.17697.41697.36698.320.02317.6851.236.090.96
GC_Trib210RCH510872.82325exex340695.17697.27697.18698.060.021917.1547.5635.260.93
GC_Trib210RCH510872.82310exex272695.17696.94696.93697.690.026416.9639.0733.340.99
GC_Trib210RCH510872.8235exex212695.17696.69696.69697.340.028096.4532.8631.911
GC_Trib210RCH510872.8232exex147695.17696.41696.41696.920.030075.7225.729.791
GC_Trib210RCH510770.649100exex818690.95697.16696.72697.520.004445.49199.09138.420.46
GC_Trib210RCH510770.64950exex666690.95696.78695.56697.20.005295.63150.68116.930.5
GC_Trib210RCH510770.64925exex575690.95696.51695.24696.970.005915.69121.93102.030.52
GC_Trib210RCH510770.64910exex443690.95696.07696.540.00655.4882.4573.030.54
GC_Trib210RCH510770.6495exex341690.95695.57695.960.006114.9768.5923.430.51
GC_Trib210RCH510770.6492exex214690.95694.79695.060.005374.1751.320.860.47
GC_Trib210RCH510492.125100exex818689.51694.68694.02695.550.01227.48109.3335.280.75
GC_Trib210RCH510492.12550exex666689.51694.23693.61695.010.01227.0894.1333.080.74
GC_Trib210RCH510492.12525exex575689.51693.94693.36694.660.01226.7984.6931.720.73
GC_Trib210RCH510492.12510exex443689.51693.49692.95694.10.012216.2770.6930.030.72
GC_Trib210RCH510492.1255exex341689.51693.09692.6693.610.01225.7759.0928.560.71
GC_Trib210RCH510492.1252exex214689.51692.5692.09692.880.012224.9942.926.050.69
GC_Trib205RCH4901198.244100exex612684689.12688.92690.140.015178.2179.8937.630.83
GC_Trib205RCH4901198.24450exex517684688.87688.59689.770.014847.6770.8134.470.81
GC_Trib205RCH4901198.24425exex452684688.63688.36689.470.015667.4162.8331.450.82
GC_Trib205RCH4901198.24410exex367684688.02688.02689.010.026057.9846.0223.921.01
GC_Trib205RCH4901198.2445exex291684687.86687.68688.60.020626.8842.322.780.89
GC_Trib205RCH4901198.2442exex206684687.6687.22688.090.015235.6436.5321.10.76
GC_Trib205RCH490858.071100exex612681.05684.8684.8685.230.012916.85151.41152.270.74
GC_Trib205RCH490858.07150exex517681.05684.71684.71685.10.012056.46136.751510.71
GC_Trib205RCH490858.07125exex452681.05684.66684.666850.010585.98129.57150.380.66
GC_Trib205RCH490858.07110exex367681.05684.69684.90.006414.69133.95150.760.52
GC_Trib205RCH490858.0715exex291681.05684.52684.41684.740.006774.6108.55148.540.53
GC_Trib205RCH490858.0712exex206681.05684.29683.8684.540.007344.4975.52145.590.54
GC_Trib205RCH490377.755100exex612674.85680.39680.720.004335.12195.92233.760.46
GC_Trib205RCH490377.75550exex517674.85680.12678.96680.540.005255.37133.54227.370.5
GC_Trib205RCH490377.75525exex452674.85679.53680.10.008526.0677.7736.640.62
GC_Trib205RCH490377.75510exex367674.85678.38678.38679.390.025088.0745.4722.541
GC_Trib205RCH490377.7555exex291674.85678.02678.02678.950.026287.7237.6820.71.01
GC_Trib205RCH490377.7552exex206674.85677.57677.57678.360.02737.1428.8618.421
GC_Trib205RCH490218.547100exex612671.06680.48675.39680.50.000171.69712.81321.070.1
GC_Trib205RCH490218.54750exex517671.06679.99675.05680.170.000743.43155254.660.21
C- 38
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib205RCH490218.54725exex452671.06679.47674.8679.620.000713.22144.44223.210.21
GC_Trib205RCH490218.54710exex367671.06678.37674.37678.510.000813.1122.47132.920.21
GC_Trib205RCH490218.5475exex291671.06677.31674.01677.440.000952.98101.3260.50.22
GC_Trib205RCH490218.5472exex206671.06676.01673.52676.130.001252.8675.2629.770.25
GC_Trib205RCH490190Culvert
GC_Trib205RCH490160.662100exex612670.48674.67674.03675.540.01097.4981.7537.460.72
GC_Trib205RCH490160.66250exex517670.48674.38673.74675.130.010536.9374.6435.310.7
GC_Trib205RCH490160.66225exex452670.48674.17673.54674.830.010296.5269.3333.70.68
GC_Trib205RCH490160.66210exex367670.48673.85673.25674.40.01015.9661.5431.490.66
GC_Trib205RCH490160.6625exex291670.48673.52672.97673.980.010135.4453.4829.350.65
GC_Trib205RCH490160.6622exex206670.48673.09672.6673.450.010634.8242.7126.490.64
GC_Trib205RCH49041.651100exex612667672.33672.33673.690.019619.569.1129.040.92
GC_Trib205RCH49041.65150exex517667671.99671.99673.250.020929.1259.4926.390.93
GC_Trib205RCH49041.65125exex452667671.71671.71672.920.022478.8652.5924.370.95
GC_Trib205RCH49041.65110exex367667671.34671.34672.440.024998.4543.8921.560.98
GC_Trib205RCH49041.6515exex291667670.97670.97671.960.027877.9736.5218.861
GC_Trib205RCH49041.6512exex206667670.35670.35671.30.029187.8426.2813.871
GC_Trib200RCH4301445.456100exex356675.88678.69678.69679.260.017017.0280.1871.480.79
GC_Trib200RCH4301445.45650exex300675.88678.53678.53679.070.016716.6769.4667.750.77
GC_Trib200RCH4301445.45625exex261675.88678.4678.4678.930.017086.4760.4664.470.77
GC_Trib200RCH4301445.45610exex212675.88678.21678.21678.720.017486.1648.759.930.77
GC_Trib200RCH4301445.4565exex168675.88678.19677.89678.520.011414.9547.7359.60.62
GC_Trib200RCH4301445.4562exex120675.88678.09678.290.007493.8741.6257.080.5
GC_Trib200RCH4301163.808100exex356671.63677.2677.230.000351.55288.38128.290.12
GC_Trib200RCH4301163.80850exex300671.63676.45676.490.000631.85201.59103.970.16
GC_Trib200RCH4301163.80825exex261671.63675.91675.970.001092.22149.2291.60.21
GC_Trib200RCH4301163.80810exex212671.63675.2675.310.003063.1988.4277.660.33
GC_Trib200RCH4301163.8085exex168671.63674.38674.36674.850.015455.7335.0644.710.71
GC_Trib200RCH4301163.8082exex120671.63673.73673.73674.390.033656.5418.8115.720.98
GC_Trib200RCH4301066.091100exex356670.27677.14672.72677.190.000412.02243.8178.740.14
GC_Trib200RCH4301066.09150exex300670.27676.4672.53676.440.000441.95213.39164.560.14
GC_Trib200RCH4301066.09125exex261670.27675.86672.39675.90.000481.9191.08150.460.14
GC_Trib200RCH4301066.09110exex212670.27675.13672.17675.170.000541.83161.39139.070.15
GC_Trib200RCH4301066.0915exex168670.27674.43671.9674.470.000621.77132.69120.220.16
GC_Trib200RCH4301066.0912exex120670.27673.59671.64673.630.000791.798.2782.770.17
GC_Trib200RCH430900Culvert
GC_Trib200RCH430745.513100exex356666.72669.25668.87669.60.010644.9477.7755.710.61
GC_Trib200RCH430745.51350exex300666.72669.09668.7669.40.010514.6569.152.190.6
GC_Trib200RCH430745.51325exex261666.72668.97668.57669.250.010284.463.0949.810.58
GC_Trib200RCH430745.51310exex212666.72668.8668.39669.050.010144.0854.7546.30.57
GC_Trib200RCH430745.5135exex168666.72668.63668.21668.840.009743.7147.1842.880.55
GC_Trib200RCH430745.5132exex120666.72668.41667.99668.560.009263.2338.0838.360.52
C- 39
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib200RCH430514.474100exex356662.99664.94664.94665.640.031436.7354.3141.070.99
GC_Trib200RCH430514.47450exex300662.99664.79664.79665.410.032536.3648.1840.260.99
GC_Trib200RCH430514.47425exex261662.99664.67664.67665.250.03416.1143.4739.640.99
GC_Trib200RCH430514.47410exex212662.99664.53664.53665.030.035275.6937.7438.820.99
GC_Trib200RCH430514.4745exex168662.99664.37664.37664.810.038285.3231.8237.941
GC_Trib200RCH430514.4742exex120662.99664.19664.19664.550.042214.825.0936.911.01
GC_Trib200RCH43076.066100exex356655.16657.09656.83657.20.00732.53132.59199.680.43
GC_Trib200RCH43076.06650exex300655.16657656.76657.110.00732.46116.48186.440.43
GC_Trib200RCH43076.06625exex261655.16656.94656.69657.040.00732.41104.94176.810.43
GC_Trib200RCH43076.06610exex212655.16656.85656.62656.940.007312.3389.79163.320.42
GC_Trib200RCH43076.0665exex168655.16656.76656.54656.840.007312.2475.4149.380.42
GC_Trib200RCH43076.0662exex120655.16656.64656.44656.70.00732.1358.59131.240.42
GC_Trib20RCH180645.311100exex278566.52570.13569.99570.970.018627.4339.3521.820.88
GC_Trib20RCH180645.31150exex243566.52569.96569.82570.730.018667.0635.7920.810.87
GC_Trib20RCH180645.31125exex206566.52569.77569.61570.450.018796.6431.919.660.86
GC_Trib20RCH180645.31110exex168566.52569.56569.37570.140.018896.1427.8418.380.84
GC_Trib20RCH180645.3115exex135566.52569.32569.13569.830.019095.7523.6816.940.83
GC_Trib20RCH180645.3112exex98566.52569.02568.82569.440.019315.2218.8115.080.81
GC_Trib20RCH180192.286100exex278556.99561.13560.97562.020.021017.5736.8417.650.9
GC_Trib20RCH180192.28650exex243556.99560.95560.76561.750.021047.1833.8716.850.88
GC_Trib20RCH180192.28625exex206556.99560.73560.52561.450.021016.8330.1615.860.87
GC_Trib20RCH180192.28610exex168556.99560.45560.23561.10.021026.4925.8814.70.86
GC_Trib20RCH180192.2865exex135556.99560.17559.97560.760.021036.1521.9613.550.85
GC_Trib20RCH180192.2862exex98556.99559.8559.59560.30.0215.6717.2812.040.83
GC_Trib195RCH4703233.213100exex522687.53691.3691.890.012736.3396.9458.560.69
GC_Trib195RCH4703233.21350exex439687.53690.99690.59691.560.014116.1480.1251.730.71
GC_Trib195RCH4703233.21325exex383687.53690.8690.4691.330.014595.970.6647.450.71
GC_Trib195RCH4703233.21310exex311687.53690.54691.010.015085.5159.1841.680.71
GC_Trib195RCH4703233.2135exex247687.53690.29690.690.015625.0949.3135.990.7
GC_Trib195RCH4703233.2132exex177687.53689.97690.290.016084.5339.0929.230.69
GC_Trib195RCH4703075.381100exex522683.83687.93687.93689.250.0217210.2775.2634.250.94
GC_Trib195RCH4703075.38150exex439683.83687.65687.65688.830.020929.5766.1532.080.91
GC_Trib195RCH4703075.38125exex383683.83687.4687.4688.510.021579.2358.330.060.92
GC_Trib195RCH4703075.38110exex311683.83687.04687.04688.070.022838.7547.9427.290.92
GC_Trib195RCH4703075.3815exex247683.83686.69686.69687.620.024038.2138.8724.610.93
GC_Trib195RCH4703075.3812exex177683.83686.25686.25687.050.026147.4928.7221.210.94
GC_Trib195RCH4702839.955100exex522680685.22685.280.000732.12380.1167.070.18
GC_Trib195RCH4702839.95550exex439680684.45684.520.001172.35263.54137.080.22
GC_Trib195RCH4702839.95525exex383680683.916840.001662.52196.7293.20.26
GC_Trib195RCH4702839.95510exex311680683.22683.330.002882.79136.3881.870.32
GC_Trib195RCH4702839.9555exex247680682.64682.780.005263.191.4472.620.41
GC_Trib195RCH4702839.9552exex177680682.12682.290.009643.3255.7965.230.53
C- 40
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib195RCH4702666.653100exex522677.63684.9681.47685.080.001133.6167.76142.490.25
GC_Trib195RCH4702666.65350exex439677.63684.09681.11684.270.001333.56141.74128.890.27
GC_Trib195RCH4702666.65325exex383677.63683.51680.89683.690.001533.55123.266.650.28
GC_Trib195RCH4702666.65310exex311677.63682.72680.56682.90.001933.5597.8541.560.31
GC_Trib195RCH4702666.6535exex247677.63681.96680.19682.150.002573.5774.7134.010.34
GC_Trib195RCH4702666.6532exex177677.63681.05679.7681.250.0043.6149.9824.510.41
GC_Trib195RCH4702450Culvert
GC_Trib195RCH4702347.764100exex522673.59677.9677.9679.980.0381211.5945.0510.881
GC_Trib195RCH4702347.76450exex439673.59677.61677.45679.310.0328910.4741.9110.820.94
GC_Trib195RCH4702347.76425exex383673.59677.44677.11678.860.028369.5640.0610.790.87
GC_Trib195RCH4702347.76410exex311673.59677.18676.67678.260.022888.3537.2610.740.79
GC_Trib195RCH4702347.7645exex247673.59676.86676.24677.690.01897.333.8510.670.72
GC_Trib195RCH4702347.7642exex177673.59676.44675.716770.014486.0229.410.590.64
GC_Trib195RCH4702248.356100exex522673.28676.79677.430.010146.4182.7434.270.68
GC_Trib195RCH4702248.35650exex439673.28676.54677.090.009975.9674.2532.480.66
GC_Trib195RCH4702248.35625exex383673.28676.35676.840.009885.6468.231.150.65
GC_Trib195RCH4702248.35610exex311673.28676.07676.490.010025.2159.729.170.64
GC_Trib195RCH4702248.3565exex247673.28675.78675.21676.140.009734.7851.6328.020.62
GC_Trib195RCH4702248.3562exex177673.28675.38674.91675.670.010154.3640.6426.350.62
GC_Trib195RCH4701954.899100exex522668.92672.75672.7673.740.015758.3368.4733.970.86
GC_Trib195RCH4701954.89950exex439668.92672.5672.43673.40.015977.960.1831.90.85
GC_Trib195RCH4701954.89925exex383668.92672.31672.24673.150.016277.5954.2330.310.85
GC_Trib195RCH4701954.89910exex311668.92672.07671.94672.790.016047.0347.0328.270.83
GC_Trib195RCH4701954.8995exex247668.92671.79671.65672.430.016756.5739.42260.83
GC_Trib195RCH4701954.8992exex177668.92671.48671.28671.980.015865.7131.9423.580.78
GC_Trib195RCH4701548.659100exex522662.62667.1666.56667.840.013126.9175.5929.160.76
GC_Trib195RCH4701548.65950exex439662.62666.78666.25667.450.013186.6166.4427.520.75
GC_Trib195RCH4701548.65925exex383662.62666.55666.03667.180.013086.3560.2926.370.74
GC_Trib195RCH4701548.65910exex311662.62666.19665.72666.760.013576.0951.0924.540.74
GC_Trib195RCH4701548.6595exex247662.62665.87665.42666.370.013185.6643.6622.950.72
GC_Trib195RCH4701548.6592exex177662.62665.4665.03665.840.014335.3233.320.540.74
GC_Trib195RCH4701196.402100exex522657.9662.92663.480.011455.9987.0837.210.69
GC_Trib195RCH4701196.40250exex439657.9662.58663.110.011395.857532.960.68
GC_Trib195RCH4701196.40225exex383657.9662.28662.80.011615.8465.5929.230.69
GC_Trib195RCH4701196.40210exex311657.9661.88662.380.011385.6754.8725.060.68
GC_Trib195RCH4701196.4025exex247657.9661.46661.930.012075.544.9322.430.68
GC_Trib195RCH4701196.4022exex177657.9661.03660.4661.410.011024.9235.9519.760.64
GC_Trib195RCH470865.51100exex522655.68659.1659.720.01126.5585.4945.620.72
GC_Trib195RCH470865.5150exex439655.68658.9659.450.010756.0876.743.210.69
GC_Trib195RCH470865.5125exex383655.68658.79659.260.009865.6471.7941.810.66
GC_Trib195RCH470865.5110exex311655.68658.58658.980.009185.1163.6239.370.63
GC_Trib195RCH470865.515exex247655.68658.43657.86658.730.007724.4557.5737.460.57
GC_Trib195RCH470865.512exex177655.68658.09658.330.00783.9445.7433.410.55
C- 41
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib195RCH470545.494100exex522651.77655.11655.11655.820.013397.7293.266.620.8
GC_Trib195RCH470545.49450exex439651.77654.9654.9655.580.013627.4179.9761.360.8
GC_Trib195RCH470545.49425exex383651.77654.7654.7655.40.01497.3668.2953.970.82
GC_Trib195RCH470545.49410exex311651.77654.42654.42655.110.016417.1454.9343.30.85
GC_Trib195RCH470545.4945exex247651.77654.04654.04654.790.022077.2940.2233.030.95
GC_Trib195RCH470545.4942exex177651.77653.73653.73654.350.022316.4930.9528.620.93
GC_Trib195RCH470339.51100exex615647.87652.29652.930.011296.4396.847.690.71
GC_Trib195RCH470339.5150exex526647.87652.18652.690.009615.7691.6743.10.65
GC_Trib195RCH470339.5125exex469647.87653.31653.470.001933.32166.27890.31
GC_Trib195RCH470339.5110exex396647.87652.6652.80.003183.67113.159.990.38
GC_Trib195RCH470339.515exex326647.87652.02652.250.004533.8285.3436.810.44
GC_Trib195RCH470339.512exex242647.87651.42651.640.005243.7364.8932.190.46
GC_Trib195RCH470268.531100exex615645.93652.33649.82652.470.00143.38274.62153.660.27
GC_Trib195RCH470268.53150exex526645.93652.19649.53652.310.00123.07254.37150.770.25
GC_Trib195RCH470268.53125exex469645.93653.33649.31653.360.000281.72440.46175.560.12
GC_Trib195RCH470268.53110exex396645.93652.61649.02652.660.000421.92319.78159.920.15
GC_Trib195RCH470268.5315exex326645.93652.02648.72652.070.000572.06228.13146.940.17
GC_Trib195RCH470268.5312exex242645.93651.41648.31651.460.000611.95161.3798.850.17
GC_Trib195RCH470254Bridge
GC_Trib195RCH470238.608100exex615646.01651.69649.72651.930.002454.18195.99117.40.36
GC_Trib195RCH470238.60850exex526646.01651.5649.51651.70.002233.86174.07104.820.34
GC_Trib195RCH470238.60825exex469646.01651.36649.28651.540.002073.64160.0295.90.32
GC_Trib195RCH470238.60810exex396646.01651.16649.03651.320.001853.31142.1183.150.3
GC_Trib195RCH470238.6085exex326646.01650.93648.77651.060.001612.97124.83720.28
GC_Trib195RCH470238.6082exex242646.01650.6648.42650.690.001312.5103.2856.860.25
GC_Trib195RCH470100.695100exex615645.88651.58649.48651.650.000942.47416.68287.920.22
GC_Trib195RCH470100.69550exex526645.88651.38649.22651.440.000942.38360.12266.820.22
GC_Trib195RCH470100.69525exex469645.88651.23649.04651.30.000952.32322.68251.890.22
GC_Trib195RCH470100.69510exex396645.88651.03648.78651.090.000942.23273.25230.710.21
GC_Trib195RCH470100.6955exex326645.88650.8648.51650.860.000952.13223.45207.180.21
GC_Trib195RCH470100.6952exex242645.88650.46648.11650.520.000941.98159.66172.420.21
GC_Trib190RCH4502431.95100exex355699.83702.76702.74703.610.023829.0567.3540.10.96
GC_Trib190RCH4502431.9550exex299699.83702.6703.330.021568.2861.2438.790.9
GC_Trib190RCH4502431.9525exex261699.83702.47702.37703.130.020667.8255.9837.60.87
GC_Trib190RCH4502431.9510exex212699.83702.32702.15702.850.017736.9550.4536.240.8
GC_Trib190RCH4502431.955exex169699.83702.17701.91702.590.01476.0745.434.960.72
GC_Trib190RCH4502431.952exex121699.83701.88701.59702.220.013735.3335.5731.70.68
GC_Trib190RCH4501961.624100exex355693.78696.84695.93697.130.00875.4989.7991.620.58
GC_Trib190RCH4501961.62450exex299693.78696.69695.91696.980.009025.3976.8183.110.58
GC_Trib190RCH4501961.62425exex261693.78696.58695.91696.870.00915.2768.3277.040.58
GC_Trib190RCH4501961.62410exex212693.78696.4695.91696.690.009955.2454.8665.380.6
GC_Trib190RCH4501961.6245exex169693.78696.17695.85696.490.011575.2841.6851.080.64
C- 42
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib190RCH4501961.6242exex121693.78695.78695.56696.090.01254.8127.8826.060.64
GC_Trib190RCH4501600.659100exex355688.16691.91691.76692.740.017837.7649.8726.680.81
GC_Trib190RCH4501600.65950exex299688.16691.66691.57692.440.018467.4443.5524.890.81
GC_Trib190RCH4501600.65925exex261688.16691.47691.4692.210.019377.2438.8323.470.82
GC_Trib190RCH4501600.65910exex212688.16691.26691.12691.90.018366.6434.1321.950.78
GC_Trib190RCH4501600.6595exex169688.16691.09690.85691.60.016055.8830.4720.70.72
GC_Trib190RCH4501600.6592exex121688.16690.8690.49691.190.014825.1124.7818.580.68
GC_Trib190RCH4501432.634100exex355685.73689.18689.930.01627.9872.5943.290.79
GC_Trib190RCH4501432.63450exex299685.73688.99689.650.015237.4164.2841.160.76
GC_Trib190RCH4501432.63425exex261685.73688.85689.440.01436.9658.739.670.73
GC_Trib190RCH4501432.63410exex212685.73688.56689.130.015046.6347.7236.560.74
GC_Trib190RCH4501432.6345exex169685.73688.23688.80.017276.4836.333.370.77
GC_Trib190RCH4501432.6342exex121685.73687.82688.330.019726.0124.9321.340.8
GC_Trib190RCH4501332.082100exex355683.83688.03687.88688.560.010416.37101.9121.820.63
GC_Trib190RCH4501332.08250exex299683.83687.79687.23688.310.010786.1678.1393.470.63
GC_Trib190RCH4501332.08225exex261683.83687.63687.09688.150.011086.0163.0589.260.63
GC_Trib190RCH4501332.08210exex212683.83687.48687.90.009365.3250.960.940.58
GC_Trib190RCH4501332.0825exex169683.83687.33687.640.007384.5443.6335.960.51
GC_Trib190RCH4501332.0822exex121683.83687.01687.220.006113.7835.1124.210.45
GC_Trib190RCH4501126.731100exex355681.9685.87686.420.011046.373.7742.160.65
GC_Trib190RCH4501126.73150exex299681.9685.61686.120.011145.9663.3138.660.64
GC_Trib190RCH4501126.73125exex261681.9685.43685.890.011075.6756.4736.20.63
GC_Trib190RCH4501126.73110exex212681.9684.97684.63685.480.015325.8441.3230.020.72
GC_Trib190RCH4501126.7315exex169681.9684.49684.38685.090.024716.2228.5423.590.87
GC_Trib190RCH4501126.7312exex121681.9684.06684.06684.660.037156.1819.6117.761.01
GC_Trib190RCH450730.25100exex355675.12679.15679.15680.450.0214610.0550.9522.490.93
GC_Trib190RCH450730.2550exex299675.12678.81678.81680.020.02239.5943.6120.770.94
GC_Trib190RCH450730.2525exex261675.12678.56678.56679.70.023299.2738.419.460.94
GC_Trib190RCH450730.2510exex212675.12678.53679.30.015797.637.9819.350.78
GC_Trib190RCH450730.255exex169675.12678.5679.010.010426.1337.4119.20.63
GC_Trib190RCH450730.252exex121675.12678.37678.660.006384.6534.8518.560.49
GC_Trib190RCH450498.959100exex681671.86679.18679.30.001714.5410.05154.520.3
GC_Trib190RCH450498.95950exex573671.86678.82678.950.001674.3357.36144.610.29
GC_Trib190RCH450498.95925exex500671.86678.04678.250.002825.15252.65124.110.37
GC_Trib190RCH450498.95910exex405671.86676.91677.330.00616.6135.7877.140.53
GC_Trib190RCH450498.9595exex322671.86675.86676.480.011117.5775.1737.890.68
GC_Trib190RCH450498.9592exex229671.86674.93674.93675.780.019278.2843.7129.810.86
GC_Trib190RCH450426.489100exex681670.21679.14673.53679.240.000352.23283.25197.570.14
GC_Trib190RCH450426.48950exex573670.21678.81673.29678.880.000281.96271.13191.180.12
GC_Trib190RCH450426.48925exex500670.21678.06673.12678.130.000311.91244.19176.960.13
GC_Trib190RCH450426.48910exex405670.21677.03672.9677.090.000351.85207.05159.710.13
GC_Trib190RCH450426.4895exex322670.21676.06672.67676.110.000411.79172.12141.910.14
GC_Trib190RCH450426.4892exex229670.21674.86672.32674.910.000551.73129.13124.050.15
C- 43
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib190RCH450300Culvert
GC_Trib190RCH450129.896100exex681667.5671.5671.16672.420.012918.3108.1351.710.74
GC_Trib190RCH450129.89650exex573667.5671.25670.78672.040.011937.6397.6347.050.71
GC_Trib190RCH450129.89625exex500667.5671.07670.49671.770.011267.1689.7843.920.68
GC_Trib190RCH450129.89610exex405667.5670.78670671.370.010426.578.2139.560.65
GC_Trib190RCH450129.8965exex322667.5670.49669.77670.970.009465.867.335.10.61
GC_Trib190RCH450129.8962exex229667.5670.1669.36670.440.008074.8554.7429.120.55
GC_Trib190RCH45022.995100exex681666.38670.37670.02670.920.012317.64180.67109.530.71
GC_Trib190RCH45022.99550exex573666.38670.13669.79670.650.012317.28154.69100.150.71
GC_Trib190RCH45022.99525exex500666.38669.94669.59670.430.012317136.3392.330.7
GC_Trib190RCH45022.99510exex405666.38669.66669.35670.130.012316.59112.4782.130.69
GC_Trib190RCH45022.9955exex322666.38669.39669.08669.810.012316.1591.1772.210.68
GC_Trib190RCH45022.9952exex229666.38669.02668.72669.390.012315.5566.7860.430.66
GC_Trib180RCH4605587.449100exex349701.85704.73704.73705.540.022628.8272.2650.110.93
GC_Trib180RCH4605587.44950exex293701.85704.46704.46705.260.024718.6159.4543.790.96
GC_Trib180RCH4605587.44925exex256701.85704.25704.25705.040.026668.4550.9839.060.98
GC_Trib180RCH4605587.44910exex208701.85703.99703.99704.720.028278.0141.3733.010.99
GC_Trib180RCH4605587.4495exex165701.85703.77703.77704.410.027787.3734.5830.340.96
GC_Trib180RCH4605587.4492exex118701.85703.76703.47704.090.01455.3134.2930.220.7
GC_Trib180RCH4605263.007100exex349696.45702.02702.090.0012.64259.84128.190.21
GC_Trib180RCH4605263.00750exex293696.45701.22701.320.001673.03171.3396.590.27
GC_Trib180RCH4605263.00725exex256696.45700.66700.80.002533.37123.2976.790.32
GC_Trib180RCH4605263.00710exex208696.45699.94700.130.004433.8177.3148.890.41
GC_Trib180RCH4605263.0075exex165696.45699.3699.560.008024.2849.1838.770.52
GC_Trib180RCH4605263.0072exex118696.45698.63698.990.017424.8626.9427.480.72
GC_Trib180RCH4605178.48100exex349694.72701.84698.42701.970.001293.4146.241650.23
GC_Trib180RCH4605178.4850exex293694.72701.03698.02701.170.001553.43121.29145.360.25
GC_Trib180RCH4605178.4825exex256694.72700.47697.8700.620.001823.47103.81134.60.26
GC_Trib180RCH4605178.4810exex208694.72699.68697.43699.860.002393.5879.5479.430.3
GC_Trib180RCH4605178.485exex165694.72698.93697.08699.120.00323.6756.8427.630.33
GC_Trib180RCH4605178.482exex118694.72698.05696.64698.250.004373.636.518.950.37
GC_Trib180RCH4604900Culvert
GC_Trib180RCH4604835.127100exex349689.2691.27690.75691.540.009574.2986.9169.980.56
GC_Trib180RCH4604835.12750exex293689.2691.08690.62691.320.009914.0676.7466.720.56
GC_Trib180RCH4604835.12725exex256689.2691.12690.52691.290.006993.4678.7467.370.48
GC_Trib180RCH4604835.12710exex208689.2690.86690.4691.030.008353.3865.0762.890.5
GC_Trib180RCH4604835.1275exex165689.2690.77690.28690.90.006652.8860.3361.370.45
GC_Trib180RCH4604835.1272exex118689.2690.54690.12690.640.006682.5448.6157.840.43
GC_Trib180RCH4604676.71100exex349686.35689.54689.990.009315.5474.6445.610.64
GC_Trib180RCH4604676.7150exex293686.35689.29689.70.009985.3163.4142.210.65
GC_Trib180RCH4604676.7125exex256686.35688.78688.69689.390.020726.3343.5635.610.9
C- 44
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib180RCH4604676.7110exex208686.35688.7689.150.016325.4340.8634.620.79
GC_Trib180RCH4604676.715exex165686.35688.32688.32688.850.028675.8928.5729.680.99
GC_Trib180RCH4604676.712exex118686.35688.09688.09688.530.032535.3622.0726.71.02
GC_Trib180RCH4604330.08100exex1331682.54687.78688.220.004486.02329.27159.510.5
GC_Trib180RCH4604330.0850exex1114682.54687.46687.890.004565.78279.83148.370.5
GC_Trib180RCH4604330.0825exex967682.54687.5687.810.003284.93285.71149.740.42
GC_Trib180RCH4604330.0810exex777682.54686.91687.270.00435.11203.31126.150.47
GC_Trib180RCH4604330.085exex610682.54686.62686.910.00374.49173.7485.360.43
GC_Trib180RCH4604330.082exex426682.54685.79684.87686.060.004974.3114.9560.840.48
GC_Trib180RCH4603783.417100exex1331676683.18684.440.013112.05245.49166.690.85
GC_Trib180RCH4603783.41750exex1114676683.02684.190.0118511.26218.95159.430.81
GC_Trib180RCH4603783.41725exex967676682.64681.86684.390.0162812.65162.2142.650.94
GC_Trib180RCH4603783.41710exex777676682.63681.79683.790.0107610.27160.07141.980.76
GC_Trib180RCH4603783.4175exex610676682.26681.78683.590.0115910.19110.56125.450.78
GC_Trib180RCH4603783.4172exex426676681.61682.50.009048.2475.7228.020.67
GC_Trib180RCH4603393.516100exex1331673.5679.96679.72680.380.007778.03324.2194.160.62
GC_Trib180RCH4603393.51650exex1114673.5679.69679.57680.150.008528.12274.61181.340.64
GC_Trib180RCH4603393.51625exex967673.5679.64680.010.00717.36264.43178.60.59
GC_Trib180RCH4603393.51610exex777673.5679.27679.760.009157.93202.61160.930.66
GC_Trib180RCH4603393.5165exex610673.5679.08679.08679.540.008397.38172.4150.980.62
GC_Trib180RCH4603393.5162exex426673.5678.81678.81679.220.007266.58133.9135.410.58
GC_Trib180RCH4602910.425100exex1331668675.06675.06676.30.0095210.21251.19130.720.74
GC_Trib180RCH4602910.42550exex1114668674.69674.69675.880.009439.73203.27124.720.73
GC_Trib180RCH4602910.42525exex967668674.04673.7675.520.0127210.41129.24104.070.83
GC_Trib180RCH4602910.42510exex777668673.61673.19674.830.011629.36109.6838.330.78
GC_Trib180RCH4602910.4255exex610668673.45672.61674.280.008217.68103.6437.260.65
GC_Trib180RCH4602910.4252exex426668672.9673.470.006666.3284.0233.580.57
GC_Trib180RCH4602626.506100exex1331663.58669.3669.3670.280.0108310.47305.59142.920.8
GC_Trib180RCH4602626.50650exex1114663.58669.05669.05669.950.010139.8269.45138.670.76
GC_Trib180RCH4602626.50625exex967663.58668.84668.84669.70.009769.36241.01134.620.74
GC_Trib180RCH4602626.50610exex777663.58668.53668.53669.340.009268.73200.18127.940.72
GC_Trib180RCH4602626.5065exex610663.58667.84667.84668.860.012769.2123.2983.630.82
GC_Trib180RCH4602626.5062exex426663.58667.1667.1668.120.015248.7573.6747.20.86
GC_Trib180RCH4602229.781100exex1331659.48665.83666.380.003936.24269.0274.060.48
GC_Trib180RCH4602229.78150exex1114659.48665.32665.820.004015.89232.0569.80.47
GC_Trib180RCH4602229.78125exex967659.48664.95665.410.004055.61206.7666.690.47
GC_Trib180RCH4602229.78110exex777659.48664.38664.790.004315.27170.2661.250.47
GC_Trib180RCH4602229.7815exex610659.48663.75664.130.005015.05133.5554.950.5
GC_Trib180RCH4602229.7812exex426659.48663.04663.370.005764.5997.4947.490.51
GC_Trib180RCH4601982.297100exex1331657.18662.74662.74664.520.0159311.16148.9149.340.93
GC_Trib180RCH4601982.29750exex1114657.18662.26662.26663.910.016910.66126.0945.460.94
GC_Trib180RCH4601982.29725exex967657.18661.9661.9663.460.0177910.28110.5142.620.95
GC_Trib180RCH4601982.29710exex777657.18661.54661.44662.830.016689.2995.6139.880.9
C- 45
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib180RCH4601982.2975exex610657.18661.46660.96662.30.011277.592.3139.240.74
GC_Trib180RCH4601982.2972exex426657.18661.09660.4661.630.00848678.3136.40.63
GC_Trib180RCH4601407.486100exex1650651.9655.86655.45656.070.006364.71450.65389.510.52
GC_Trib180RCH4601407.48650exex1380651.9655.67655.3655.890.007564.89379.48380.760.56
GC_Trib180RCH4601407.48625exex1196651.9655.49655.2655.720.008124.81313.97307.460.57
GC_Trib180RCH4601407.48610exex959651.9655.27655.08655.510.009474.89250.92275.540.6
GC_Trib180RCH4601407.4865exex751651.9655.03654.94655.30.012025.32189.33239.980.67
GC_Trib180RCH4601407.4862exex523651.9654.78654.77655.060.014385.6132.54201.710.73
GC_Trib180RCH4601001.202100exex1650646.97653.4652.83653.870.004696.73352.09186.910.51
GC_Trib180RCH4601001.20250exex1380646.97653.15652.57653.590.004446.35307.74169.860.5
GC_Trib180RCH4601001.20225exex1196646.97652.93652.32653.350.004416.14271.16154.380.49
GC_Trib180RCH4601001.20210exex959646.97652.58651.86652.990.00445.84222.01133.140.48
GC_Trib180RCH4601001.2025exex751646.97652.24651.28652.610.004225.42179.9111.910.47
GC_Trib180RCH4601001.2022exex523646.97651.57650.53651.940.004815.15118.9170.620.49
GC_Trib180RCH460566.81100exex1650644.75649.46649.4650.490.014578.5238.04155.890.85
GC_Trib180RCH460566.8150exex1380644.75649.04649.04650.10.017588.48189.63100.60.91
GC_Trib180RCH460566.8125exex1196644.75648.79648.79649.80.018848.23165.1196.950.92
GC_Trib180RCH460566.8110exex959644.75648.47648.47649.390.020167.76134.6792.210.93
GC_Trib180RCH460566.815exex751644.75648.12648.12648.960.023117.38103.4386.640.97
GC_Trib180RCH460566.812exex523644.75647.92647.63648.440.016035.7890.5455.330.8
GC_Trib180RCH460308.828100exex1650642.78649.93649.970.000271.931269.07352.40.13
GC_Trib180RCH460308.82850exex1380642.78648.83648.880.000422.16906.64301.030.16
GC_Trib180RCH460308.82825exex1196642.78648.04648.110.000612.35690.11249.510.19
GC_Trib180RCH460308.82810exex959642.78646.96647.050.001142.73449.8199.620.25
GC_Trib180RCH460308.8285exex751642.78645.93646.080.002493.27265.58136.930.34
GC_Trib180RCH460308.8282exex523642.78644.67644.990.010974.6118.8494.650.65
GC_Trib180RCH460223.057100exex1650640.14649.61644.88649.870.001034.51489.74305.030.26
GC_Trib180RCH460223.05750exex1380640.14648.52644.36648.770.001154.39419.08297.690.27
GC_Trib180RCH460223.05725exex1196640.14647.74644.04647.980.001274.3368.18282.770.28
GC_Trib180RCH460223.05710exex959640.14646.66643.5646.90.001494.19298.35231.40.29
GC_Trib180RCH460223.0575exex751640.14645.64643.01645.880.00184.1231.89116.260.31
GC_Trib180RCH460223.0572exex523640.14644.3642.41644.550.002624.07147.9455.670.36
GC_Trib180RCH460175Culvert
GC_Trib180RCH460117.825100exex1650639.31645.96644.28646.620.004756.87298.32341.550.5
GC_Trib180RCH460117.82550exex1380639.31645.44643.8646.030.004756.45262.09304.390.49
GC_Trib180RCH460117.82525exex1196639.31645.05643.49645.590.004756.14235.46279.680.49
GC_Trib180RCH460117.82510exex959639.31644.51643644.980.004755.68198.11254.540.48
GC_Trib180RCH460117.8255exex751639.31643.96642.47644.370.004755.19161.79199.160.47
GC_Trib180RCH460117.8252exex523639.31643.27641.66643.580.004754.54122.5558.060.45
GC_Trib175RCH4004890.15100exex697675.49680.42680.42681.20.015238.63146.692.790.77
GC_Trib175RCH4004890.1550exex549675.49680.1680.1680.840.015068.11118.4582.410.76
GC_Trib175RCH4004890.1525exex454675.49679.85679.85680.570.015067.7399.1273.480.75
C- 46
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib175RCH4004890.1510exex319675.49679.28679.28680.050.018597.5662.4854.050.8
GC_Trib175RCH4004890.155exex203675.49678.6678.6679.370.024177.1433.2732.550.87
GC_Trib175RCH4004890.152exex138675.49678.26678.02678.810.021435.9724.0721.840.8
GC_Trib175RCH4004482.77100exex697668673.33672.86674.340.015458.1593.1238.910.77
GC_Trib175RCH4004482.7750exex549668672.84672.39673.720.016327.5775.4632.990.77
GC_Trib175RCH4004482.7725exex454668672.62672.03673.330.014596.7968.3430.280.72
GC_Trib175RCH4004482.7710exex319668672.16671.48672.670.012855.7255.8625.030.66
GC_Trib175RCH4004482.775exex203668671.41671.830.014165.2138.9920.60.67
GC_Trib175RCH4004482.772exex138668670.85670.43671.220.016164.928.1418.040.69
GC_Trib175RCH4004145.759100exex697663.01667.51667.46668.590.019338.75103.2454.980.87
GC_Trib175RCH4004145.75950exex549663.01667.22667.05668.090.017367.7887.9850.270.81
GC_Trib175RCH4004145.75925exex454663.01666.87666.74667.710.019377.5471.3744.590.84
GC_Trib175RCH4004145.75910exex319663.01666.35666.25667.080.022196.9250.3636.170.86
GC_Trib175RCH4004145.7595exex203663.01665.99665.71666.450.018185.4838.3229.010.75
GC_Trib175RCH4004145.7592exex138663.01665.74665.35666.040.014554.431.6425.430.66
GC_Trib175RCH4003800.321100exex697657.01662.51661.82663.310.012067.36121.3191.620.69
GC_Trib175RCH4003800.32150exex549657.01662.04661.41662.810.013447.0681.973.640.71
GC_Trib175RCH4003800.32125exex454657.01661.79661.09662.420.012166.3672.4528.620.66
GC_Trib175RCH4003800.32110exex319657.01661.32660.54661.770.010955.3559.726.050.61
GC_Trib175RCH4003800.3215exex203657.01660.49659.98660.90.014275.139.8220.67
GC_Trib175RCH4003800.3212exex138657.01659.87660.280.019255.0927.1218.910.75
GC_Trib175RCH4003409.147100exex697651.76655.92655.89657.060.021969.27110.3669.190.92
GC_Trib175RCH4003409.14750exex549651.76655.68655.68656.590.018958.1794.5363.10.85
GC_Trib175RCH4003409.14725exex454651.76655.36655.36656.250.021057.9575.2554.780.87
GC_Trib175RCH4003409.14710exex319651.76654.86654.86655.660.023757.3251.2642.190.9
GC_Trib175RCH4003409.1475exex203651.76654.61655.060.015655.4441.2435.640.71
GC_Trib175RCH4003409.1472exex138651.76654.41654.680.010924.2134.6630.580.58
GC_Trib175RCH4002782.266100exex697645.22649.48649.810.007024.96195.01121.140.52
GC_Trib175RCH4002782.26650exex549645.22649.2649.480.00664.49162.48110.360.49
GC_Trib175RCH4002782.26625exex454645.22648.97649.220.006534.19138.17101.550.48
GC_Trib175RCH4002782.26610exex319645.22648.64648.830.005743.56107.1889.070.44
GC_Trib175RCH4002782.2665exex203645.22648.07648.250.007843.3362.8567.310.49
GC_Trib175RCH4002782.2662exex138645.22647.57647.750.011123.3940.6835.80.56
GC_Trib175RCH4002530.068100exex697642.99647.01647.01647.580.01347.23193.28166.090.72
GC_Trib175RCH4002530.06850exex549642.99646.79646.79647.320.012856.73156.93160.570.7
GC_Trib175RCH4002530.06825exex454642.99646.65646.65647.140.011866.25134.12157.190.67
GC_Trib175RCH4002530.06810exex319642.99646.32646.31646.80.012195.8283.1149.350.66
GC_Trib175RCH4002530.0685exex203642.99646.18646.440.006584.1163.24146.190.48
GC_Trib175RCH4002530.0682exex138642.99646.04646.180.003933.0448.8752.270.37
GC_Trib175RCH4002413.045100exex697640.17646.84643.82646.920.000722.66472.76339.20.2
GC_Trib175RCH4002413.04550exex549640.17646.75643.44646.810.000512.21440.77334.970.17
GC_Trib175RCH4002413.04525exex454640.17646.62643.15646.660.000411.96397.16328.460.15
GC_Trib175RCH4002413.04510exex319640.17646.46642.67646.480.000251.5344.41320.350.12
C- 47
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib175RCH4002413.0455exex203640.17646.25642.19646.270.000131.06280.37310.210.08
GC_Trib175RCH4002413.0452exex138640.17646.08641.85646.087.6E-050.78229.9209.930.06
GC_Trib175RCH4002380Culvert
GC_Trib175RCH4002352.746100exex697639.68644.44644.07646.060.0144410.2268.21134.830.87
GC_Trib175RCH4002352.74650exex549639.68644.3643.5645.380.010068.3365.8887.630.72
GC_Trib175RCH4002352.74625exex454639.68644.21643.1644.980.007397.0464.4983.110.62
GC_Trib175RCH4002352.74610exex319639.68644.11642.49644.510.003985.0862.8577.720.45
GC_Trib175RCH4002352.7465exex203639.68644.04641.89644.210.00173.2861.8374.40.29
GC_Trib175RCH4002352.7462exex138639.68644.02641.49644.10.00082.2561.4573.160.2
GC_Trib175RCH4002151.526100exex697640.01644.12644.270.002954.08364.66203.460.38
GC_Trib175RCH4002151.52650exex549640.01644.07644.170.001963.29354.91201.640.31
GC_Trib175RCH4002151.52625exex454640.01644.05644.120.001392.76350.06200.730.26
GC_Trib175RCH4002151.52610exex319640.01644.02644.060.000711.96344.89199.760.19
GC_Trib175RCH4002151.5265exex203640.01644.01644.020.000291.26341.96199.20.12
GC_Trib175RCH4002151.5262exex138640.01644644.010.000140.86340.91990.08
GC_Trib175RCH4001780.234100exex697639.97644641.73644.020.000291.29597.76251.30.12
GC_Trib175RCH4001780.23450exex549639.97644641.52644.010.000181.02597.76251.30.1
GC_Trib175RCH4001780.23425exex454639.97644641.37644.010.000120.84597.76251.30.08
GC_Trib175RCH4001780.23410exex319639.97644641.146440.000060.59597.76251.30.06
GC_Trib175RCH4001780.2345exex203639.97644640.96442.4E-050.38597.76251.30.04
GC_Trib175RCH4001780.2342exex138639.97644640.736441.1E-050.26597.76251.30.02
GC_Trib170RCH3902227.843100exex441633.56638.42637.82639.20.011678.4593.1843.390.71
GC_Trib170RCH3902227.84350exex371633.56638.1637.48638.780.011117.8380.2336.070.68
GC_Trib170RCH3902227.84325exex323633.56637.87637.24638.480.010487.3272.5832.980.66
GC_Trib170RCH3902227.84310exex262633.56637.55636.92638.080.009876.7162.4830.650.63
GC_Trib170RCH3902227.8435exex207633.56637.23636.56637.670.009186.0652.8728.220.6
GC_Trib170RCH3902227.8432exex147633.56636.77636.11637.130.008575.2940.8424.820.56
GC_Trib170RCH3901817.626100exex441629.22631.94631.92632.610.023317.2590.4181.040.9
GC_Trib170RCH3901817.62650exex371629.22631.77631.77632.390.023336.8577.4473.660.88
GC_Trib170RCH3901817.62625exex323629.22631.62631.62632.220.024316.6367.2467.290.89
GC_Trib170RCH3901817.62610exex262629.22631.44631.44631.980.024966.2355.4861.310.88
GC_Trib170RCH3901817.6265exex207629.22631.25631.24631.740.026085.8344.3855.430.88
GC_Trib170RCH3901817.6262exex147629.22631.03631631.430.026215.1832.7748.530.86
GC_Trib170RCH3901509.111100exex441621.68625.21626.020.020868.7791.360.80.89
GC_Trib170RCH3901509.11150exex371621.68624.99625.750.020818.3378.5356.370.88
GC_Trib170RCH3901509.11125exex323621.68624.83624.79625.540.020347.927052.490.86
GC_Trib170RCH3901509.11110exex262621.68624.63624.58625.250.019287.359.5748.410.83
GC_Trib170RCH3901509.1115exex207621.68624.38624.27624.950.019416.8248.1743.980.82
GC_Trib170RCH3901509.1112exex147621.68624.04623.95624.540.019686.1434.935.760.8
GC_Trib170RCH3901335.669100exex441619.48622.64622.21623.110.012765.6991.0258.950.67
GC_Trib170RCH3901335.66950exex371619.48622.44622.02622.860.012715.3379.6355.550.66
GC_Trib170RCH3901335.66925exex323619.48622.28621.87622.670.012745.0771.4352.660.65
C- 48
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib170RCH3901335.66910exex262619.48622.06621.68622.40.013264.7459.9948.190.65
GC_Trib170RCH3901335.6695exex207619.48621.87621.48622.150.012794.2951.0644.410.63
GC_Trib170RCH3901335.6692exex147619.48621.63621.26621.840.011813.6641.1839.820.59
GC_Trib170RCH3901028.725100exex454614.53616.84616.84617.630.026167.981.4156.990.96
GC_Trib170RCH3901028.72550exex382614.53616.66616.66617.370.026397.4671.154.360.95
GC_Trib170RCH3901028.72525exex325614.53616.49616.49617.150.026887.162.4152.040.94
GC_Trib170RCH3901028.72510exex238614.53616.22616.22616.780.027766.4448.5748.120.93
GC_Trib170RCH3901028.7255exex197614.53616.07616.07616.580.028196.0641.7346.060.92
GC_Trib170RCH3901028.7252exex146614.53615.85615.85616.30.030865.6131.8341.250.94
GC_Trib170RCH390946.546100exex454611.16616.61614.74616.670.000852.31296.68192.090.19
GC_Trib170RCH390946.54650exex382611.16616.48614.43616.530.000682.03272.91167.150.17
GC_Trib170RCH390946.54625exex325611.16616.34614.15616.380.00061.86250.05158.750.16
GC_Trib170RCH390946.54610exex238611.16616.17613.71616.20.000411.5223.78149.950.13
GC_Trib170RCH390946.5465exex197611.16616.02613.49616.040.000351.35202.57138.470.12
GC_Trib170RCH390946.5462exex146611.16615.83613.19615.840.000261.11176.94124.530.1
GC_Trib170RCH390925Culvert
GC_Trib170RCH390905.447100exex454610.88613.17613.17614.180.024357.956.6233.760.93
GC_Trib170RCH390905.44750exex382610.88612.95612.95613.850.02547.5250.432.440.94
GC_Trib170RCH390905.44725exex325610.88612.76612.76613.570.026377.1845.2131.330.94
GC_Trib170RCH390905.44710exex238610.88612.45612.45613.110.028386.5636.4329.60.94
GC_Trib170RCH390905.4475exex197610.88612.29612.29612.880.028966.1632.2128.840.94
GC_Trib170RCH390905.4472exex146610.88612.06612.06612.550.031345.6626.1327.730.94
GC_Trib170RCH390783.736100exex454606609.5609.5610.50.020218.5257.5429.060.88
GC_Trib170RCH390783.73650exex382606609.24609.24610.170.021058.1750.2727.360.88
GC_Trib170RCH390783.73625exex325606609.03609.03609.880.021387.844.6926.010.88
GC_Trib170RCH390783.73610exex238606608.63608.63609.390.023517.2734.8923.540.89
GC_Trib170RCH390783.7365exex197606608.43608.43609.120.024636.9330.1622.210.9
GC_Trib170RCH390783.7362exex146606608.14608.14608.740.026266.3924.0420.350.9
GC_Trib170RCH390566.202100exex454603.91607.23607.370.002693.39155.0692.360.33
GC_Trib170RCH390566.20250exex382603.91607.06607.190.002523.18140.2688.810.32
GC_Trib170RCH390566.20225exex325603.91606.92607.030.002352.97128.1285.790.3
GC_Trib170RCH390566.20210exex238603.91606.71606.790.001912.55110.1981.130.27
GC_Trib170RCH390566.2025exex197603.91606.6606.660.001652.31101.3278.720.25
GC_Trib170RCH390566.2022exex146603.91606.35606.40.001612.1382.1573.240.24
GC_Trib170RCH390500.989100exex454601.74607.18606.31607.230.000872.31295.83231.950.19
GC_Trib170RCH390500.98950exex382601.74607.01606.2607.060.000892.27257.08221.620.19
GC_Trib170RCH390500.98925exex325601.74606.86605.06606.910.00092.23225.7212.90.19
GC_Trib170RCH390500.98910exex238601.74606.65604.62606.690.00082.03181.66196.850.18
GC_Trib170RCH390500.9895exex197601.74606.55604.39606.580.00071.86161.78181.230.17
GC_Trib170RCH390500.9892exex146601.74606.29604.08606.320.000741.82118.07159.590.17
GC_Trib170RCH390475Culvert
C- 49
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib170RCH390450.409100exex454601.07605.29604.83605.470.006284.28176.15111.240.47
GC_Trib170RCH390450.40950exex382601.07605.05604.66605.460.012695.784.07106.030.66
GC_Trib170RCH390450.40925exex325601.07604.88604.52605.240.012345.3576.08102.440.64
GC_Trib170RCH390450.40910exex238601.07604.59604.25604.880.011734.7462.3296.270.61
GC_Trib170RCH390450.4095exex197601.07604.43604.09604.690.011374.4154.9492.960.59
GC_Trib170RCH390450.4092exex146601.07604.21603.85604.420.010843.9344.4788.250.56
GC_Trib170RCH390269.12100exex454600.66603.35602.79603.640.009354.41113.9573.310.56
GC_Trib170RCH390269.1250exex382600.66603.17602.64603.430.009354.13101.0370.760.55
GC_Trib170RCH390269.1225exex325600.66603.02602.52603.250.009363.8890.3568.570.55
GC_Trib170RCH390269.1210exex238600.66602.76602.31602.940.009353.4473.0564.880.53
GC_Trib170RCH390269.125exex197600.66602.63602.21602.780.009353.264.3162.940.52
GC_Trib170RCH390269.122exex146600.66602.44602.07602.560.009362.8552.6759.550.5
GC_Trib165RCH4104317.931100exex386681.49684.67684.67685.570.020557.6956.4942.850.93
GC_Trib165RCH4104317.93150exex322681.49684.42684.42685.260.022457.3846.4936.370.95
GC_Trib165RCH4104317.93125exex278681.49684.22684.22685.020.024857.239.6831.190.98
GC_Trib165RCH4104317.93110exex221681.49683.95683.95684.680.027846.8232.4123.221.01
GC_Trib165RCH4104317.9315exex173681.49683.71683.71684.350.028786.4426.8621.31.01
GC_Trib165RCH4104317.9312exex118681.49683.36683.36683.90.030335.9419.8818.551.01
GC_Trib165RCH4103938.561100exex386653.89657.216580.0189.1193.5471.890.92
GC_Trib165RCH4103938.56150exex322653.89657.12657.12657.750.014538.0387.55700.83
GC_Trib165RCH4103938.56125exex278653.89656.97656.97657.580.014327.777.1366.580.81
GC_Trib165RCH4103938.56110exex221653.89656.77656.77657.320.013457.0964.162.040.78
GC_Trib165RCH4103938.5615exex173653.89656.54656.54657.060.013426.6650.3856.870.77
GC_Trib165RCH4103938.5612exex118653.89655.92655.92656.660.02457.3321.7320.730.98
GC_Trib165RCH4103547.055100exex386646.61649.93649.93650.950.019138.5959.9736.530.93
GC_Trib165RCH4103547.05550exex322646.61650.28650.790.008366.1773.7943.380.63
GC_Trib165RCH4103547.05525exex278646.61649.93650.460.009946.1959.9136.520.67
GC_Trib165RCH4103547.05510exex221646.61649.6650.080.01035.7748.7132.80.67
GC_Trib165RCH4103547.0555exex173646.61649.33648.9649.730.010025.2440.2629.70.65
GC_Trib165RCH4103547.0552exex118646.61648.96648.54649.260.009664.4930.0525.450.62
GC_Trib165RCH4103291.914100exex386642.71646.77646.77647.40.009927.32100.91100.750.7
GC_Trib165RCH4103291.91450exex322642.71645.88645.88647.210.026439.7843.6226.751.09
GC_Trib165RCH4103291.91425exex278642.71645.86645.86646.870.020468.5442.9526.570.95
GC_Trib165RCH4103291.91410exex221642.71645.57645.57646.450.020297.8535.7424.460.93
GC_Trib165RCH4103291.9145exex173642.71645.26645.26646.050.021927.3628.4221.880.94
GC_Trib165RCH4103291.9142exex118642.71644.85644.85645.50.024346.620.1918.540.95
GC_Trib165RCH4103004.978100exex386635.54640.04639.71640.970.015257.7852.5323.690.81
GC_Trib165RCH4103004.97850exex322635.54639.78639.4640.570.01477.1746.6921.780.78
GC_Trib165RCH4103004.97825exex278635.54639.58639.19640.280.014486.7442.3520.750.77
GC_Trib165RCH4103004.97810exex221635.54639.3638.89639.870.013736.0636.9119.380.73
GC_Trib165RCH4103004.9785exex173635.54638.98638.59639.470.014685.6130.8817.750.74
GC_Trib165RCH4103004.9782exex118635.54638.34638.850.021015.7320.5914.520.85
GC_Trib165RCH4102561.773100exex386629.17632.32632.23633.050.02096.8857.1839.350.91
C- 50
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib165RCH4102561.77350exex322629.17632.13632.02632.770.02126.4350.2735.090.9
GC_Trib165RCH4102561.77325exex278629.17632631.86632.570.021026.0545.9431.880.89
GC_Trib165RCH4102561.77310exex221629.17631.75631.62632.270.02195.7838.2329.260.89
GC_Trib165RCH4102561.7735exex173629.17631.58631.396320.019455.1833.3727.510.83
GC_Trib165RCH4102561.7732exex118629.17631.44631.08631.680.012553.9929.6126.080.66
GC_Trib165RCH4102224.472100exex386623.78626.95626.95627.370.013416.56125.08130.760.75
GC_Trib165RCH4102224.47250exex322623.78626.83626.83627.220.012786.18109.46126.530.72
GC_Trib165RCH4102224.47225exex278623.78626.73626.73627.110.012575.9596.73122.970.71
GC_Trib165RCH4102224.47210exex221623.78626.59626.59626.940.011715.580.39118.250.68
GC_Trib165RCH4102224.4725exex173623.78626.4626.4626.770.012555.3358.73106.220.69
GC_Trib165RCH4102224.4722exex118623.78625.99625.78626.480.019245.6121.0730.320.82
GC_Trib165RCH4101951.054100exex386619.93622.4622.14622.780.009535.4998.5788.760.65
GC_Trib165RCH4101951.05450exex322619.93622.22621.89622.580.009925.2882.8976.860.65
GC_Trib165RCH4101951.05425exex278619.93622.05621.75622.410.01055.1571.3466.750.66
GC_Trib165RCH4101951.05410exex221619.93621.81621.54622.140.011424.8957.352.340.67
GC_Trib165RCH4101951.0545exex173619.93621.5621.34621.860.015394.9542.345.580.76
GC_Trib165RCH4101951.0542exex118619.93621.22621.08621.510.016854.4230.4139.530.76
GC_Trib165RCH4101668.036100exex386614.82618.43618.25619.120.018226.6758.3833.630.86
GC_Trib165RCH4101668.03650exex322614.82618.23618.04618.830.018376.2251.9132.330.85
GC_Trib165RCH4101668.03625exex278614.82618.11617.88618.630.017385.7748.2131.570.81
GC_Trib165RCH4101668.03610exex221614.82617.94618.350.015785.1642.8430.160.76
GC_Trib165RCH4101668.0365exex173614.82617.87617.39618.150.011124.2640.6429.340.64
GC_Trib165RCH4101668.0362exex118614.82617.51617.06617.740.010693.8230.8525.380.61
GC_Trib165RCH4101410.773100exex386611.52614.87615.420.011386.0979.5271.270.7
GC_Trib165RCH4101410.77350exex322611.52614.68615.170.011195.6966.6560.730.69
GC_Trib165RCH4101410.77325exex278611.52614.48614.08614.950.01195.555.7550.650.7
GC_Trib165RCH4101410.77310exex221611.52614.19613.83614.610.013495.2442.9835.360.72
GC_Trib165RCH4101410.7735exex173611.52613.7613.57614.220.022145.7929.922.920.89
GC_Trib165RCH4101410.7732exex118611.52613.32613.22613.770.02385.421.8619.640.9
GC_Trib165RCH4101182.351100exex386607.73611.19611.19612.130.01855859.6941.730.9
GC_Trib165RCH4101182.35150exex322607.73610.92610.91611.80.019897.6649.1536.690.92
GC_Trib165RCH4101182.35125exex278607.73610.78610.72611.550.018777.1344.3234.080.88
GC_Trib165RCH4101182.35110exex221607.73610.61610.41611.210.016446.2838.5630.680.81
GC_Trib165RCH4101182.3515exex173607.73610.63610.15610.990.009574.8439.4131.20.62
GC_Trib165RCH4101182.3512exex118607.73610.28609.8610.540.00914.1129.6324.50.58
GC_Trib165RCH410882.765100exex386603.49606.51606.51606.870.013625.47133.9211.660.74
GC_Trib165RCH410882.76550exex322603.49606.39606.39606.750.013695.24109.88200.30.73
GC_Trib165RCH410882.76525exex278603.49606.3606.3606.650.013745.0592.27189.240.72
GC_Trib165RCH410882.76510exex221603.49606.15606.15606.490.014614.8564.91170.650.73
GC_Trib165RCH410882.7655exex173603.49605.7605.7606.240.03075.9129.327.971.02
GC_Trib165RCH410882.7652exex118603.49605.41605.41605.870.032295.4721.5623.941.02
GC_Trib165RCH410688.884100exex386601.56604.71604.780.001142.28252.1174.920.23
GC_Trib165RCH410688.88450exex322601.56604.31604.390.001492.36184.04163.820.26
C- 51
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib165RCH410688.88425exex278601.56604.01604.090.001862.43135.18158.440.29
GC_Trib165RCH410688.88410exex221601.56603.67603.750.001992.25109.4268.570.29
GC_Trib165RCH410688.8845exex173601.56603.43603.490.001962.0493.0565.720.28
GC_Trib165RCH410688.8842exex118601.56603.05603.10.002221.8369.0661.290.29
GC_Trib165RCH410539.47100exex743599.93604.46604.580.001412.88287.1119.040.27
GC_Trib165RCH410539.4750exex602599.93604.07604.180.001372.63245.8595.170.26
GC_Trib165RCH410539.4725exex493599.93603.79603.880.001252.36220.7788.820.25
GC_Trib165RCH410539.4710exex394599.93603.46603.530.001222.15191.7385.440.24
GC_Trib165RCH410539.475exex329599.93603.22603.280.001191.98171.52830.23
GC_Trib165RCH410539.472exex240599.93602.84602.890.001151.74140.8779.160.22
GC_Trib165RCH410310.724100exex743599.88604.09604.240.001593.14261.15176.640.29
GC_Trib165RCH410310.72450exex602599.88603.72603.850.001492.84222.7978.250.27
GC_Trib165RCH410310.72425exex493599.88603.49603.590.001282.51204.9776.160.25
GC_Trib165RCH410310.72410exex394599.88603.18603.260.001172.23181.7473.340.24
GC_Trib165RCH410310.7245exex329599.88602.96603.020.001082.03165.6671.320.22
GC_Trib165RCH410310.7242exex240599.88602.61602.650.000941.72141.0368.110.2
GC_Trib165RCH41097.811100exex743597.79603.9600.97603.990.000722.64310.5882.660.2
GC_Trib165RCH41097.81150exex602597.79603.55600.61603.630.000622.33282.8879.570.19
GC_Trib165RCH41097.81125exex493597.79603.35600.33603.410.000492.01267.2377.780.16
GC_Trib165RCH41097.81110exex394597.79603.06600.06603.110.00041.74244.9675.40.15
GC_Trib165RCH41097.8115exex329597.79602.86599.87602.890.000341.55229.5273.760.13
GC_Trib165RCH41097.8112exex240597.79602.53599.58602.550.000251.25205.5671.160.11
GC_Trib165RCH41075Culvert
GC_Trib165RCH41055.871100exex743597.6601.04600.35601.440.00565.42151.8669.390.53
GC_Trib165RCH41055.87150exex602597.6600.01600.01601.080.021458.3872.8752.070.98
GC_Trib165RCH41055.87125exex493597.6600.72599.77601.120.005615.1396.9264.080.52
GC_Trib165RCH41055.87110exex394597.6600.36599.5600.70.00564.7184.6757.840.51
GC_Trib165RCH41055.8715exex329597.6600.1599.29600.40.005614.475.8853.520.5
GC_Trib165RCH41055.8712exex240597.6599.71598.99599.940.00563.962.5948.820.49
GC_Trib100RCH35017184.31100exex525669.58672.92673.530.016416.692.2758.920.76
GC_Trib100RCH35017184.3150exex443669.58672.49672.49673.240.025167.1668.7950.860.92
GC_Trib100RCH35017184.3125exex387669.58672.34672.34673.050.025786.8961.5348.10.92
GC_Trib100RCH35017184.3110exex315669.58672.13672.13672.770.027536.5451.4843.990.93
GC_Trib100RCH35017184.315exex251669.58671.97671.89672.50.025455.8944.7540.860.88
GC_Trib100RCH35017184.312exex180669.58671.94672.230.013934.3143.6540.240.65
GC_Trib100RCH35016874.29100exex525667.53673.02673.050.000341.36486.34234.510.12
GC_Trib100RCH35016874.2950exex443667.53672.28672.310.000551.52333.53163.610.15
GC_Trib100RCH35016874.2925exex387667.53671.76671.80.00081.62259.78130.580.17
GC_Trib100RCH35016874.2910exex315667.53671.09671.140.001491.82178.03110.80.23
GC_Trib100RCH35016874.295exex251667.53670.51670.570.002492.03123.8880.540.28
GC_Trib100RCH35016874.292exex180667.53669.84669.920.004442.3377.3360.480.36
GC_Trib100RCH35016689.19100exex525665.72672.85668.95672.940.000772.43224.76243.450.19
C- 52
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib100RCH35016689.1950exex443665.72672.07668.63672.160.000932.4190.83127.40.2
GC_Trib100RCH35016689.1925exex387665.72671.52668.42671.610.00112.4166.4174.790.21
GC_Trib100RCH35016689.1910exex315665.72670.76668.12670.850.001482.41133.0951.920.24
GC_Trib100RCH35016689.195exex251665.72670.03667.81670.130.002182.49101.143.660.28
GC_Trib100RCH35016689.192exex180665.72669.14667.44669.250.002942.6568.0231.010.31
GC_Trib100RCH35016650Culvert
GC_Trib100RCH35016625.99100exex525665.2669.11667.63669.320.003823.98147.7776.310.37
GC_Trib100RCH35016625.9950exex443665.2668.79667.44668.980.003843.76132.5570.930.36
GC_Trib100RCH35016625.9925exex387665.2668.56667.29668.730.003893.61121.1566.980.36
GC_Trib100RCH35016625.9910exex315665.2668.23667.05668.380.003973.38105.3560.630.36
GC_Trib100RCH35016625.995exex251665.2667.9666.82668.040.004113.1789.753.970.36
GC_Trib100RCH35016625.992exex180665.2667.49666.55667.610.004262.8670.3947.890.35
GC_Trib100RCH35016492.62100exex525664.18668.3668.660.005694.97117.8850.310.48
GC_Trib100RCH35016492.6250exex443664.18668.03668.340.005464.6105.0144.450.46
GC_Trib100RCH35016492.6225exex387664.18667.8668.080.005494.3895.1842.390.46
GC_Trib100RCH35016492.6210exex315664.18667.48667.730.005524.0682.1940.010.45
GC_Trib100RCH35016492.625exex251664.18667.16667.370.005673.7669.6637.580.45
GC_Trib100RCH35016492.622exex180664.18666.74665.97666.910.006093.3854.4434.390.45
GC_Trib100RCH35016090.76100exex525660.5665.38664.62665.880.008715.89104.0971.030.58
GC_Trib100RCH35016090.7650exex443660.5665.15664.33665.610.008685.5988.8359.750.57
GC_Trib100RCH35016090.7625exex387660.5664.99664.13665.410.008285.2680.0552.170.55
GC_Trib100RCH35016090.7610exex315660.5664.72663.84665.080.007994.8368.2637.060.53
GC_Trib100RCH35016090.765exex251660.5664.44663.54664.740.007644.3858.6232.020.51
GC_Trib100RCH35016090.762exex180660.5664.1664.310.006913.7248.4126.650.47
GC_Trib100RCH35015742.93100exex525657.27660.64660.64661.440.019657.9682.6853.230.86
GC_Trib100RCH35015742.9350exex443657.27660.44660.44661.180.019897.5972.2349.150.85
GC_Trib100RCH35015742.9325exex387657.27660.26660.26660.980.021177.4463.5745.50.87
GC_Trib100RCH35015742.9310exex315657.27660.02660.02660.70.022027.0753.5340.860.87
GC_Trib100RCH35015742.935exex251657.27659.79659.79660.410.023126.6844.3337.050.87
GC_Trib100RCH35015742.932exex180657.27659.43659.43660.010.027526.332.1131.410.92
GC_Trib100RCH35014850.75100exex577645.82650.38650.830.007965.43109.3153.510.6
GC_Trib100RCH35014850.7550exex486645.82650.18650.570.007474.9898.9650.080.57
GC_Trib100RCH35014850.7525exex425645.82650.04650.380.006994.6492.2847.540.55
GC_Trib100RCH35014850.7510exex346645.82649.82650.090.006434.282.5240.90.52
GC_Trib100RCH35014850.755exex276645.82649.56649.780.005793.8272.237.340.48
GC_Trib100RCH35014850.752exex198645.82648.95649.180.00713.8451.630.840.52
GC_Trib100RCH35014138.41100exex577639.21643.28642.81643.90.012166.3491.7142.090.73
GC_Trib100RCH35014138.4150exex486639.21642.99642.6643.570.013416.179.839.840.75
GC_Trib100RCH35014138.4125exex425639.21642.76642.42643.320.0156.0170.7238.070.78
GC_Trib100RCH35014138.4110exex346639.21642.41642.17642.960.017545.9857.935.570.83
GC_Trib100RCH35014138.415exex276639.21642.06641.93642.620.021346.0145.932.470.89
GC_Trib100RCH35014138.412exex198639.21641.94642.280.013934.742.131.270.71
C- 53
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib100RCH35013724.8100exex577635.18640.39638.73640.820.004885.28109.6231.720.48
GC_Trib100RCH35013724.850exex486635.18640.07638.43640.440.004684.8799.8829.470.46
GC_Trib100RCH35013724.825exex425635.18639.8638.2640.130.004534.6192.1428.530.45
GC_Trib100RCH35013724.810exex346635.18639.4637.9639.690.004324.2780.9727.250.44
GC_Trib100RCH35013724.85exex276635.18639637.6639.240.00413.9370.3125.980.42
GC_Trib100RCH35013724.82exex198635.18638.03638.310.006954.2646.5222.950.53
GC_Trib100RCH35013199.59100exex577631.9634.93634.92635.880.024457.8373.6638.771
GC_Trib100RCH35013199.5950exex486631.9634.68634.68635.570.025527.5764.2436.811.01
GC_Trib100RCH35013199.5925exex425631.9634.5634.5635.340.026127.3357.9735.451.01
GC_Trib100RCH35013199.5910exex346631.9634.26634.26635.020.026836.9649.7133.561.01
GC_Trib100RCH35013199.595exex276631.9634.03634.03634.70.027896.5941.9131.681.01
GC_Trib100RCH35013199.592exex198631.9634.37634.590.007183.7153.3434.40.53
GC_Trib100RCH35012795.32100exex577628.5635.51635.524.9E-050.731077.16354.60.05
GC_Trib100RCH35012795.3250exex486628.5634.89634.96.8E-050.8861.4337.310.06
GC_Trib100RCH35012795.3225exex425628.5634.23634.240.000120.98646.03319.310.08
GC_Trib100RCH35012795.3210exex346628.5633.34633.360.000361.45378.92272.760.13
GC_Trib100RCH35012795.325exex276628.5632.5632.570.001582.53170.65221.130.27
GC_Trib100RCH35012795.322exex198628.5631.46631.70.007063.9550.1129.180.53
GC_Trib100RCH35012620.85100exex667627.32635.51630.05635.512.8E-050.661616.86482.210.04
GC_Trib100RCH35012620.8550exex561627.32634.81629.83634.860.000261.88298.74459.240.13
GC_Trib100RCH35012620.8525exex489627.32634.15629.64634.20.000281.82269.18439.160.13
GC_Trib100RCH35012620.8510exex396627.32633.25629.34633.30.000321.73228.74337.760.13
GC_Trib100RCH35012620.855exex315627.32632.41629.09632.450.000371.66190.84279.440.14
GC_Trib100RCH35012620.852exex224627.32631.37628.78631.410.000471.56144.0693.060.15
GC_Trib100RCH35012600Culvert
GC_Trib100RCH35012549.21100exex667626.96629.93629.76630.940.0178.0685.1537.930.88
GC_Trib100RCH35012549.2150exex561626.96629.89629.48630.630.012736.983.5537.610.76
GC_Trib100RCH35012549.2125exex489626.96629.83629.27630.410.010546.1781.1737.140.69
GC_Trib100RCH35012549.2110exex396626.96629.66629630.110.00875.3675.1635.930.62
GC_Trib100RCH35012549.215exex315626.96629.46628.75629.80.007434.6768.0934.460.56
GC_Trib100RCH35012549.212exex224626.96629.03628.41629.30.007884.1554.0231.340.56
GC_Trib100RCH35012306.92100exex667624.43628.72628.940.004094.59256.16355.370.45
GC_Trib100RCH35012306.9250exex561624.43628.59628.830.004344.6209.9338.720.46
GC_Trib100RCH35012306.9225exex489624.43628.48628.750.00454.58175.4316.140.46
GC_Trib100RCH35012306.9210exex396624.43628.29628.570.004664.46126.09223.240.47
GC_Trib100RCH35012306.925exex315624.43628627.01628.290.005154.377534.380.48
GC_Trib100RCH35012306.922exex224624.43627.55627.770.005043.7960.0231.640.46
GC_Trib100RCH35011899.21100exex667622.2626.55625.89626.860.00555.04196.96261.40.51
GC_Trib100RCH35011899.2150exex561622.2626.43625.65626.740.005514.9164.66252.650.51
GC_Trib100RCH35011899.2125exex489622.2626.33625.44626.640.005514.79139.54245.630.51
GC_Trib100RCH35011899.2110exex396622.2626.15625.18626.470.005514.5898.35187.350.5
GC_Trib100RCH35011899.215exex315622.2625.84624.9626.120.005514.2175.636.270.49
GC_Trib100RCH35011899.212exex224622.2625.42624.55625.630.00553.6860.9433.110.47
C- 54
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1908926.285100exex644593.89601.04601.140.000933.31348.22134.750.23
GC_Trib10RCH1908926.28550exex536593.89600600.190.001924.21217.91116.350.32
GC_Trib10RCH1908926.28525exex480593.89599.46599.740.002814.74160.6797.670.39
GC_Trib10RCH1908926.28510exex403593.89598.86599.230.004035.18108.2576.170.45
GC_Trib10RCH1908926.2855exex323593.89598.38598.740.004394.9779.4147.760.46
GC_Trib10RCH1908926.2852exex233593.89597.9598.170.00384.2261.9828.550.42
GC_Trib10RCH1908646.762100exex644592.19600.78600.890.000842.91279.8972.450.2
GC_Trib10RCH1908646.76250exex536592.19599.58599.730.001363.23200.2560.780.25
GC_Trib10RCH1908646.76225exex480592.19598.9599.070.001893.47160.7953.80.28
GC_Trib10RCH1908646.76210exex403592.19597.99598.210.003063.82116.244.630.35
GC_Trib10RCH1908646.7625exex323592.19597.14597.40.005044.1281.84360.43
GC_Trib10RCH1908646.7622exex233592.19595.91596.320.013825.1445.3323.980.66
GC_Trib10RCH1908592.118100exex644590.36600.51596.83600.780.001554.14155.3845.010.29
GC_Trib10RCH1908592.11850exex536590.36599.32595.58599.60.002124.23126.7142.080.32
GC_Trib10RCH1908592.11825exex480590.36598.61595.15598.910.002764.38109.6837.870.36
GC_Trib10RCH1908592.11810exex403590.36597.63594.65597.970.004324.6786.2632.090.43
GC_Trib10RCH1908592.1185exex323590.36596.56594.135970.008255.360.8925.730.57
GC_Trib10RCH1908592.1182exex233590.36595.39593.45595.830.006185.3343.679.920.45
GC_Trib10RCH1908548Culvert
GC_Trib10RCH1908493.151100exex644589.44594.67594.67596.460.020510.8662.4319.420.94
GC_Trib10RCH1908493.15150exex536589.44594.16594.16595.830.0224310.4153.0517.580.96
GC_Trib10RCH1908493.15125exex480589.44593.88593.88595.470.0236110.1448.3116.580.97
GC_Trib10RCH1908493.15110exex403589.44593.49593.49594.940.025289.6642.0915.160.99
GC_Trib10RCH1908493.1515exex323589.44593.03593.03594.330.026819.1635.3813.860.99
GC_Trib10RCH1908493.1512exex233589.44592.43592.43593.540.028458.4427.5912.451
GC_Trib10RCH1908320.406100exex644585.14590.56591.290.009457.2111.6162.830.67
GC_Trib10RCH1908320.40650exex536585.14590.4590.980.00796.38101.9957.960.61
GC_Trib10RCH1908320.40625exex480585.14590.22590.770.00796.1591.9252.390.61
GC_Trib10RCH1908320.40610exex403585.14589.38589.2590.220.017197.4156.7333.490.85
GC_Trib10RCH1908320.4065exex323585.14589.22588.84589.850.014076.451.6930.360.76
GC_Trib10RCH1908320.4062exex233585.14588.88588.4589.350.012945.4842.5123.620.71
GC_Trib10RCH1907917.054100exex644580.48586.3586.3587.20.010688.55101.574.630.72
GC_Trib10RCH1907917.05450exex536580.48585.79585.79586.830.01358.8575.7237.950.79
GC_Trib10RCH1907917.05425exex480580.48585.61585.61586.610.013578.5969.0235.650.79
GC_Trib10RCH1907917.05410exex403580.48586.09585.19586.530.005335.8588.3151.970.51
GC_Trib10RCH1907917.0545exex323580.48585.54586.030.006685.9666.6534.80.55
GC_Trib10RCH1907917.0542exex233580.48584.91585.370.00775.6347.2926.860.57
GC_Trib10RCH1907559.605100exex644578.3584.81585.010.002174.14229.8592.590.34
GC_Trib10RCH1907559.60550exex536578.3584.63584.790.00183.67213.3889.20.31
GC_Trib10RCH1907559.60525exex480578.3583.81584.080.003734.62144.1477.250.43
GC_Trib10RCH1907559.60510exex403578.3582.46582.46583.290.017957.4661.3847.180.86
GC_Trib10RCH1907559.6055exex323578.3582.49583.010.010955.8862.8347.790.68
C- 55
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1907559.6052exex233578.3582.36581.56582.680.007154.5756.6845.160.54
GC_Trib10RCH1907304.148100exex870575.3584.64584.740.000633.29462.04143.080.2
GC_Trib10RCH1907304.14850exex722575.3584.5584.570.000482.84442.11140.360.18
GC_Trib10RCH1907304.14825exex629575.3583.62583.720.00073.19326.84117.820.21
GC_Trib10RCH1907304.14810exex514575.3581.43581.70.002584.81146.4255.180.38
GC_Trib10RCH1907304.1485exex407575.3579.66580.330.01027.1670.432.370.7
GC_Trib10RCH1907304.1482exex287575.3578.63578.63579.540.021358.0541.0724.650.95
GC_Trib10RCH1907193.067100exex870572.4584.57577.14584.670.00062.78468.75420.340.2
GC_Trib10RCH1907193.06750exex722572.4584.4576.6584.510.000522.78376.28414.110.19
GC_Trib10RCH1907193.06725exex629572.4583.44576.24583.620.000713.33188.9937.760.19
GC_Trib10RCH1907193.06710exex514572.4581.29575.78581.480.00113.514723.970.22
GC_Trib10RCH1907193.0675exex407572.4579.54575.3579.740.001513.58113.6619.080.25
GC_Trib10RCH1907193.0672exex287572.4577.94574.74578.120.00163.3685.5316.310.26
GC_Trib10RCH1907155Culvert
GC_Trib10RCH1907111.441100exex870572.29578.4577.01579.110.007036.76128.6336.990.59
GC_Trib10RCH1907111.44150exex722572.29578.27576.57578.790.005315.79124.7435.970.51
GC_Trib10RCH1907111.44125exex629572.29578.07576.24578.510.004695.31118.533.980.47
GC_Trib10RCH1907111.44110exex514572.29577.78575.85578.120.003964.68109.7232.450.43
GC_Trib10RCH1907111.4415exex407572.29577.42575.43577.680.003374.199.230.610.39
GC_Trib10RCH1907111.4412exex287572.29576.92574.88577.10.002663.3884.7928.030.34
GC_Trib10RCH1906920.486100exex870570.89577.03577.530.00887.29197.2107.130.64
GC_Trib10RCH1906920.48650exex722570.89576.42576.42577.160.014938.5136.5590.360.81
GC_Trib10RCH1906920.48625exex629570.89576.24576.24576.960.015088.25121.1884.750.81
GC_Trib10RCH1906920.48610exex514570.89575.98575.98576.690.015667.94100.1175.170.81
GC_Trib10RCH1906920.4865exex407570.89575.71575.71576.370.015757.4780.8766.330.8
GC_Trib10RCH1906920.4862exex287570.89575.29575.29575.930.017166.9856.2152.880.81
GC_Trib10RCH1906771.653100exex870570577.1577.140.000622.19577.15213.470.18
GC_Trib10RCH1906771.65350exex722570576.47576.520.00082.25451.01189.490.2
GC_Trib10RCH1906771.65325exex629570576.28576.320.000742.1414.49181.970.19
GC_Trib10RCH1906771.65310exex514570575.54575.590.001082.31308.9120.620.22
GC_Trib10RCH1906771.6535exex407570574.53574.620.002493.11194.35106.880.33
GC_Trib10RCH1906771.6532exex287570573.8573.940.004523.74120.0995.870.43
GC_Trib10RCH1906663.972100exex870569.31576.89577.060.001083.39292.51116.690.27
GC_Trib10RCH1906663.97250exex722569.31576.25576.430.001263.3322887.750.29
GC_Trib10RCH1906663.97225exex629569.31576.09576.230.00113.03214.1181.440.27
GC_Trib10RCH1906663.97210exex514569.31575.33575.470.00153.07168.1455.260.3
GC_Trib10RCH1906663.9725exex407569.31574.11574.340.003813.84106.0147.450.45
GC_Trib10RCH1906663.9722exex287569.31573.11573.420.006774.4764.2335.170.58
GC_Trib10RCH1906510.281100exex1119568.41576.69576.90.000983.77322.472.560.27
GC_Trib10RCH1906510.28150exex920568.41576.07576.260.000973.49279.3166.90.26
GC_Trib10RCH1906510.28125exex794568.41575.95576.090.000793.09271.0665.750.24
GC_Trib10RCH1906510.28110exex632568.41575.17575.30.000862.91222.7658.630.24
C- 56
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1906510.2815exex501568.41573.79573.960.001753.33150.6446.060.32
GC_Trib10RCH1906510.2812exex348568.41572.64572.820.002473.41101.9138.880.37
GC_Trib10RCH1906403.758100exex1119567.8576.64576.80.000753.34402.46109.480.24
GC_Trib10RCH1906403.75850exex920567.8576.01576.160.000773.15336.6799.740.24
GC_Trib10RCH1906403.75825exex794567.8575.9576.010.000622.79325.4897.750.21
GC_Trib10RCH1906403.75810exex632567.8575.11575.210.00072.67254.3781.520.22
GC_Trib10RCH1906403.7585exex501567.8573.63573.780.001483.14159.5247.180.3
GC_Trib10RCH1906403.7582exex348567.8572.41572.580.002033.23107.5938.560.34
GC_Trib10RCH1906267.631100exex1119567576.69576.720.000191.44854.46214.580.12
GC_Trib10RCH1906267.63150exex920567576.04576.070.000211.39718.42208.860.12
GC_Trib10RCH1906267.63125exex794567575.92575.940.000171.24692.93207.170.11
GC_Trib10RCH1906267.63110exex632567575.11575.140.000241.25530.84194.280.12
GC_Trib10RCH1906267.6315exex501567573.51573.570.001291.98253.33138.070.26
GC_Trib10RCH1906267.6312exex348567571.74572.120.005624.9969.727.240.55
GC_Trib10RCH1906160.701100exex1119566.36576.67576.70.000181.31898.66195.670.1
GC_Trib10RCH1906160.70150exex920566.36576.03576.050.000181.22776.98182.860.1
GC_Trib10RCH1906160.70125exex794566.36575.91575.930.000151.08755.29180.460.09
GC_Trib10RCH1906160.70110exex632566.36575.1575.110.000161.04615.83162.920.09
GC_Trib10RCH1906160.7015exex501566.36573.46573.480.000411.35370.63133.970.14
GC_Trib10RCH1906160.7012exex348566.36571.74571.80.001071.98175.594.810.26
GC_Trib10RCH1906012.984100exex1119565.37576.32571.3576.590.000294.93410.53126.880.27
GC_Trib10RCH1906012.98450exex920565.37575.71570.62575.950.000264.52328.88110.230.25
GC_Trib10RCH1906012.98425exex794565.37575.67570.2575.850.00023.93324.58109.030.22
GC_Trib10RCH1906012.98410exex632565.37574.85569.59575.040.00023.75218.1274.440.22
GC_Trib10RCH1906012.9845exex501565.37573.17569.05573.380.000283.89161.6841.670.25
GC_Trib10RCH1906012.9842exex348565.37571.48568.32571.670.000373.73110.8628.090.27
GC_Trib10RCH1905969Culvert
GC_Trib10RCH1905936.929100exex1119564.71571.93571.93574.780.0068513.7686.319.450.93
GC_Trib10RCH1905936.92950exex920564.71571.16571.16573.720.0071212.9674.4617.170.93
GC_Trib10RCH1905936.92925exex794564.71570.61570.61572.990.0074312.4366.0715.550.93
GC_Trib10RCH1905936.92910exex632564.71569.68569.68571.920.0088712.0152.912.80.99
GC_Trib10RCH1905936.9295exex501564.71568.99568.99570.940.0092611.2344.6111.331
GC_Trib10RCH1905936.9292exex348564.71568.09568.09569.660.0090410.0534.6210.981
GC_Trib10RCH1905750.002100exex1179562.93570.89571.110.00075.1443.33185.970.33
GC_Trib10RCH1905750.00250exex973562.93570.5570.710.000684.86374.071720.32
GC_Trib10RCH1905750.00225exex844562.93570.19570.40.000694.75321.83160.460.32
GC_Trib10RCH1905750.00210exex680562.93569.94570.120.000574.22284.08132.320.29
GC_Trib10RCH1905750.0025exex537562.93569.32569.520.000684.3208.7110.810.31
GC_Trib10RCH1905750.0022exex376562.93567.41568.080.002626.5459.6132.330.57
GC_Trib10RCH1905681.931100exex1179562.39570.19569.74570.890.002097.29235.23129.850.54
GC_Trib10RCH1905681.93150exex973562.39569.83567.41570.50.002036.89190.97120.060.53
GC_Trib10RCH1905681.93125exex844562.39569.51566.95570.190.002136.76153.88107.330.54
C- 57
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1905681.93110exex680562.39569.57566.33569.990.001295.32160.82109.820.42
GC_Trib10RCH1905681.9315exex537562.39569.03565.78569.410.001244.95112.853.560.4
GC_Trib10RCH1905681.9312exex376562.39567.45565.08567.80.001254.7978.4216.210.38
GC_Trib10RCH1905649Culvert
GC_Trib10RCH1905599.73100exex1179562.21568.26566.51568.80.003465.9201.52154.250.49
GC_Trib10RCH1905599.7350exex973562.21567.72566.09568.20.003595.53176.85113.060.48
GC_Trib10RCH1905599.7325exex844562.21567.28565.8567.740.003975.39157.02102.810.5
GC_Trib10RCH1905599.7310exex680562.21566.69565.38567.110.00475.2130.846.950.53
GC_Trib10RCH1905599.735exex537562.21566.09565.02566.490.005325.1105.3739.620.55
GC_Trib10RCH1905599.732exex376562.21565.32564.51565.690.006264.976.7534.720.58
GC_Trib10RCH1905403.975100exex1179559.66565.43565.43567.230.0133710.88118.5747.810.91
GC_Trib10RCH1905403.97550exex973559.66564.8564.8566.540.0156110.6194.5132.270.96
GC_Trib10RCH1905403.97525exex844559.66564.54564.41566.060.014959.986.5229.590.93
GC_Trib10RCH1905403.97510exex680559.66564.2563.89565.420.01368.8477.1426.090.87
GC_Trib10RCH1905403.9755exex537559.66563.82564.80.012477.9267.7923.430.82
GC_Trib10RCH1905403.9752exex376559.66563.22563.970.011366.9254.3221.610.77
GC_Trib10RCH1905250.252100exex1179558.19564.55565.360.005267.38180.8356.210.6
GC_Trib10RCH1905250.25250exex973558.19564.14564.830.005016.77158.651.720.58
GC_Trib10RCH1905250.25225exex844558.19564.39564.840.003065.5171.9854.470.46
GC_Trib10RCH1905250.25210exex680558.19563.97564.340.002834.95150.0849.950.43
GC_Trib10RCH1905250.2525exex537558.19563.52563.830.002664.44128.66460.41
GC_Trib10RCH1905250.2522exex376558.19562.81563.050.002793.9398.0439.680.41
GC_Trib10RCH1904877.936100exex1179555.76562.43563.170.006898.13288.41289.80.65
GC_Trib10RCH1904877.93650exex973555.76562.37562.37562.930.005217.02270.5288.440.56
GC_Trib10RCH1904877.93625exex844555.76561.58561.58562.80.01159.25115.0962.020.81
GC_Trib10RCH1904877.93610exex680555.76561.01561.01562.270.013769.1584.1447.090.86
GC_Trib10RCH1904877.9365exex537555.76560.28560.28561.640.018659.3758.0726.20.98
GC_Trib10RCH1904877.9362exex376555.76559.53559.53560.730.020898.7942.818.161.01
GC_Trib10RCH1904798.875100exex1657554.69561.37562.540.006619.2240.61129.310.69
GC_Trib10RCH1904798.87550exex1372554.69560.94562.040.006598.71191.9297.40.68
GC_Trib10RCH1904798.87525exex1193554.69560.64561.650.006398.24166.1975.260.66
GC_Trib10RCH1904798.87510exex965554.69560.18561.040.006067.5138.1449.240.64
GC_Trib10RCH1904798.8755exex764554.69559.62560.340.006166.88115.4370.63
GC_Trib10RCH1904798.8752exex533554.69558.88559.450.006366.0589.5233.350.61
GC_Trib10RCH1904435.388100exex1657552.19559.75560.590.004277.92263.1395.930.56
GC_Trib10RCH1904435.38850exex1372552.19559.22560.040.004477.64216.1382.040.57
GC_Trib10RCH1904435.38825exex1193552.19558.84559.640.004647.43186.374.090.57
GC_Trib10RCH1904435.38810exex965552.19558.23559.010.005097.17144.8161.420.58
GC_Trib10RCH1904435.3885exex764552.19557.64558.30.005066.54119.7433.30.57
GC_Trib10RCH1904435.3882exex533552.19556.83557.340.005215.7393.8430.80.56
GC_Trib10RCH1904195.877100exex1657550.78558.89559.550.003976.68283.5484.670.49
GC_Trib10RCH1904195.87750exex1372550.78558.42558.990.003736.16246.2273.080.48
C- 58
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1904195.87725exex1193550.78558.07558.580.00365.81222.0264.450.47
GC_Trib10RCH1904195.87710exex965550.78557.42557.890.003675.5183.4855.620.47
GC_Trib10RCH1904195.8775exex764550.78556.79557.20.003655.15150.9947.820.47
GC_Trib10RCH1904195.8772exex533550.78555.89556.240.003784.75112.2338.480.49
GC_Trib10RCH1903884.197100exex1657549.4556.96558.070.005619.49269.84108.160.65
GC_Trib10RCH1903884.19750exex1372549.4556.51557.560.005518.97224.7492.650.64
GC_Trib10RCH1903884.19725exex1193549.4556.17557.170.005488.62195.3279.460.63
GC_Trib10RCH1903884.19710exex965549.4555.53556.450.005658.09154.2957.620.63
GC_Trib10RCH1903884.1975exex764549.4554.93555.750.005797.54122.647.390.62
GC_Trib10RCH1903884.1972exex533549.4554.13554.780.005736.5990.0933.810.6
GC_Trib10RCH1903518.932100exex1606547.7555.31556.060.005117.53306.16125.170.51
GC_Trib10RCH1903518.93250exex1329547.7554.67555.460.005777.48232.83104.220.54
GC_Trib10RCH1903518.93225exex1154547.7554.25555.030.006047.29191.9392.220.54
GC_Trib10RCH1903518.93210exex923547.7553.72554.350.00556.51155.9241.970.51
GC_Trib10RCH1903518.9325exex723547.7553.19553.70.005035.78134.6239.040.48
GC_Trib10RCH1903518.9322exex505547.7552.44552.810.004674.93106.8334.840.45
GC_Trib10RCH1903328.318100exex1606546.3554.43555.20.00387.79255.6966.610.53
GC_Trib10RCH1903328.31850exex1329546.3553.77554.510.004087.54214.260.070.54
GC_Trib10RCH1903328.31825exex1154546.3553.31554.040.004347.37187.4956.460.55
GC_Trib10RCH1903328.31810exex923546.3552.66553.360.004757.1152.5251.370.57
GC_Trib10RCH1903328.3185exex723546.3552.03552.690.005276.81121.3546.450.58
GC_Trib10RCH1903328.3182exex505546.3551.22551.80.00586.2187.6137.30.59
GC_Trib10RCH1902833.369100exex1606544.12552.85553.580.002887.13269.1562.950.47
GC_Trib10RCH1902833.36950exex1329544.12552.22552.850.002756.55233.2352.540.46
GC_Trib10RCH1902833.36925exex1154544.12551.8552.350.002646.13212.0147.810.44
GC_Trib10RCH1902833.36910exex923544.12551.18551.640.002515.55183.2444.840.42
GC_Trib10RCH1902833.3695exex723544.12550.53550.910.002435.02155.241.760.41
GC_Trib10RCH1902833.3692exex505544.12549.65549.940.002444.38120.2437.580.39
GC_Trib10RCH1902565.053100exex1625542.49551.85549.95552.660.004197.26233.7352.790.54
GC_Trib10RCH1902565.05350exex1342542.49551.23549.4551.940.004286.78202.4648.340.54
GC_Trib10RCH1902565.05325exex1164542.49550.8551.450.004366.45182.5645.290.53
GC_Trib10RCH1902565.05310exex930542.49550.2550.750.00455.95156.3440.920.53
GC_Trib10RCH1902565.0535exex729542.49549.55550.030.004575.56131.0637.130.52
GC_Trib10RCH1902565.0532exex509542.49548.65549.050.004615.199.832.410.51
GC_Trib10RCH1901949.012100exex1625540.21547.28546.96548.740.010439.78174.0655.180.83
GC_Trib10RCH1901949.01250exex1342540.21546.97546.39548.150.009318.79157.4550.850.77
GC_Trib10RCH1901949.01225exex1164540.21546.74547.760.008558.11146.547.790.73
GC_Trib10RCH1901949.01210exex930540.21546.41547.20.007497.14131.2943.170.68
GC_Trib10RCH1901949.0125exex729540.21546.06546.660.00666.24116.9238.30.62
GC_Trib10RCH1901949.0122exex509540.21545.41545.870.005825.4293.8833.840.57
GC_Trib10RCH1901583.186100exex1625538.5546.78547.090.001875.42413.01127.330.38
GC_Trib10RCH1901583.18650exex1342538.5546.1546.440.002315.59330116.660.41
GC_Trib10RCH1901583.18625exex1164538.5545.67546.030.00265.64281.45107.990.43
C- 59
RiverReachRiver StaProfile
Q
Total
(cfs)
Min Ch
El (ft)
W.S.
Elev (ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow Area
(sq ft)
Top
Width (ft)
Froude
# Chl
APPENDIX C
HEC-RAS Results for Existing Conditions
GC_Trib10RCH1901583.18610exex930538.5545.04545.430.003135.69218.0394.60.46
GC_Trib10RCH1901583.1865exex729538.5544.47544.870.003665.65167.2282.020.49
GC_Trib10RCH1901583.1862exex509538.5543.67544.050.004295.31113.8655.330.51
GC_Trib10RCH1901023.274100exex1625535.31545.75546.140.001755.35366.49112.810.36
GC_Trib10RCH1901023.27450exex1342535.31544.71545.170.002425.65265.8981.320.41
GC_Trib10RCH1901023.27425exex1164535.31544.04544.530.002935.73218.1660.930.44
GC_Trib10RCH1901023.27410exex930535.31543.06543.580.003685.79165.4947.610.48
GC_Trib10RCH1901023.2745exex729535.31542.39542.840.003755.37136.4538.90.48
GC_Trib10RCH1901023.2742exex509535.31541.57541.920.00354.7108.1831.930.45
GC_Trib10RCH190535.579100exex1619534.11545.13545.420.001224.36391.7884.90.3
GC_Trib10RCH190535.57950exex1342534.11543.83544.160.001734.62291.6763.060.34
GC_Trib10RCH190535.57925exex1166534.11542.96543.30.002074.73246.4248.790.37
GC_Trib10RCH190535.57910exex909534.11541.58541.960.002874.97182.8543.250.43
GC_Trib10RCH190535.5795exex731534.11540.56540.980.003835.18141.1639.180.48
GC_Trib10RCH190535.5792exex511534.11539.3539.750.005755.3994.8933.930.57
GC_Trib10RCH190324.93100exex1619533.85545.08538.87545.220.000373.07538.59144.990.18
GC_Trib10RCH190324.9350exex1342533.85543.76538.4543.90.000443.02455.51111.470.19
GC_Trib10RCH190324.9325exex1166533.85542.87538.09543.010.000513399.5694.520.2
GC_Trib10RCH190324.9310exex909533.85541.43537.54541.570.000713.02308.8874.990.23
GC_Trib10RCH190324.935exex731533.85540.33537.11540.480.001013.11239.9363.050.26
GC_Trib10RCH190324.932exex511533.85538.87536.43539.030.001583.24159.01500.31
GC_Trib10RCH190258Culvert
GC_Trib10RCH190191.143100exex1619533.5539.4538.3540.390.006537.98205.2850.760.66
GC_Trib10RCH190191.14350exex1342533.5538.99537.82539.820.006167.28185.1948.310.63
GC_Trib10RCH190191.14325exex1166533.5538.71537.49539.430.005926.8171.6446.590.61
GC_Trib10RCH190191.14310exex909533.5538.23536.96538.80.005426.05150.2343.810.58
GC_Trib10RCH190191.1435exex731533.5537.85536.54538.310.004855.47133.6341.780.54
GC_Trib10RCH190191.1432exex511533.5537.27535.96537.610.004034.62110.5638.80.48
GC_Trib10RCH19034.419100exex1619533.8538.88537.5539.410.003645.84277.1579.260.55
GC_Trib10RCH19034.41950exex1342533.8538.44537.16538.910.003635.52243.0575.610.54
GC_Trib10RCH19034.41925exex1166533.8538.13536.92538.570.003635.29220.2773.080.54
GC_Trib10RCH19034.41910exex909533.8537.64536.54538.020.003634.9185.469.040.53
GC_Trib10RCH19034.4195exex731533.8537.26536.25537.590.003634.58159.6265.930.52
GC_Trib10RCH19034.4192exex511533.8536.71535.85536.970.003634.1124.6860.930.5
C- 60
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
Grays CreekMC4028255.99100fu8824552.91569.96570.240.000615.22768.19773.560.27
Grays CreekMC4028255.9950fu7313552.91568.76569.190.000895.871905.44672.870.32
Grays CreekMC4028255.9925fu6252552.91567.56568.230.00146.791172.33493.860.39
Grays CreekMC4028255.9910fu4944552.91566.37567.040.001576.57768.19186.390.4
Grays CreekMC4028255.995fu3849552.91565.06565.630.001446.05636.0181.070.38
Grays CreekMC4028255.992fu2659552.91563.2563.640.001185.3501.4467.070.34
Grays CreekMC4027951.47100fu8824552.77569.4569.990.000886.811927.47533.310.32
Grays CreekMC4027951.4750fu7313552.77568.07568.850.001147.251274.47454.290.36
Grays CreekMC4027951.4725fu6252552.77567.16567.850.00116.781026.38165.450.35
Grays CreekMC4027951.4710fu4944552.77566.06566.630.001016.07861.49134.380.33
Grays CreekMC4027951.475fu3849552.77564.78565.240.000975.47711.7697.990.32
Grays CreekMC4027951.472fu2659552.77562.96563.30.000874.68567.7971.320.29
Grays CreekMC4027584.19100fu8824552.6569.13569.660.000826.451766.06281.60.31
Grays CreekMC4027584.1950fu7313552.6567.83568.40.000966.51410.53265.190.33
Grays CreekMC4027584.1925fu6252552.6566.82567.420.001086.51153.25244.420.35
Grays CreekMC4027584.1910fu4944552.6565.67566.240.001116.12889.46203.030.34
Grays CreekMC4027584.195fu3849552.6564.36564.860.00115.63687.91104.970.34
Grays CreekMC4027584.192fu2659552.6562.6562.960.000984.84549.0372.870.31
Grays CreekMC4027186.95100fu8824552.42568.43569.250.001197.921540.83280.560.38
Grays CreekMC4027186.9550fu7313552.42567.01567.920.001428.031169.72239.930.41
Grays CreekMC4027186.9525fu6252552.42565.95566.880.001587.96931.84205.760.42
Grays CreekMC4027186.9510fu4944552.42564.94565.720.001457.15752.63149.440.4
Grays CreekMC4027186.955fu3849552.42563.7564.350.001416.47609.5890.440.39
Grays CreekMC4027186.952fu2659552.42562.01562.490.00145.57477.5767.830.37
Grays CreekMC4026615.37100fu8824552.16566.56562.78568.220.0025110.531056.11358.190.54
Grays CreekMC4026615.3750fu7313552.16565.25566.780.0026510.01814.82127.680.54
Grays CreekMC4026615.3725fu6252552.16564.28565.680.002729.51700.21109.830.54
Grays CreekMC4026615.3710fu4944552.16563.71564.710.00218.03640.6999.30.47
Grays CreekMC4026615.375fu3849552.16562.58563.380.0027.17540.0378.430.45
Grays CreekMC4026615.372fu2659552.16560.95561.550.001896.21428.3864.720.43
Grays CreekMC4026412.36100fu8824552.07563.05563.05567.090.0096116.13553.2976.170.99
Grays CreekMC4026412.3650fu7313552.07562.18562.03565.660.0095914.96488.9869.650.97
Grays CreekMC4026412.3625fu6252552.07562.2564.730.0069612.77490.0469.920.83
Grays CreekMC4026412.3610fu4944552.07562.79564.140.003369.34533.575.060.58
Grays CreekMC4026412.365fu3849552.07561.76562.840.003198.35460.865.920.56
Grays CreekMC4026412.362fu2659552.07560.19561.040.003187.39359.8762.610.54
Grays CreekMC4025885.96100fu8824551565.04565.20.000424.293133.33585.620.22
Grays CreekMC4025885.9650fu7313551563.62563.860.00075.092308.25580.190.28
Grays CreekMC4025885.9625fu6252551562.56562.940.001166.11695.05576.120.35
Grays CreekMC4025885.9610fu4944551560.53558.62562.110.0044410.16562.92385.270.66
Grays CreekMC4025885.965fu3849551559.5560.860.004389.36411.0462.860.65
Grays CreekMC4025885.962fu2659551558.07559.110.004168.2324.2758.730.61
Grays CreekMC4025517.61100fu8824547.9564.95565.090.000253.584060.32546.580.18
APPENDIX D
HEC-RAS Results for Future Conditions
D- 1
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4025517.6150fu7313547.9563.54563.680.000323.693292.53537.620.19
Grays CreekMC4025517.6125fu6252547.9562.51562.670.000383.792742531.080.21
Grays CreekMC4025517.6110fu4944547.9561.07561.270.000534.051989.36515.790.24
Grays CreekMC4025517.615fu3849547.9559.71559.970.000774.371301.524660.28
Grays CreekMC4025517.612fu2659547.9557.82558.130.001234.53640.69222.80.34
Grays CreekMC4025219.96100fu8824547.19564.835650.00034.183605.86512.230.19
Grays CreekMC4025219.9650fu7313547.19563.38563.580.000374.352874.71497.090.21
Grays CreekMC4025219.9625fu6252547.19562.32562.540.000454.52353.88484.150.23
Grays CreekMC4025219.9610fu4944547.19560.81561.090.000624.861640.38458.230.26
Grays CreekMC4025219.965fu3849547.19559.31559.710.000915.32990.89383.920.31
Grays CreekMC4025219.962fu2659547.19557.34557.770.001165.22509.3769.10.34
Grays CreekMC4024999.84100fu8665546.29563.75557.71564.660.001457.631135.12102.770.4
Grays CreekMC4024999.8450fu7116546.29562.49556.59563.260.001387.071007.2199.250.39
Grays CreekMC4024999.8425fu6104546.29561.55555.77562.240.001346.67915.6396.650.38
Grays CreekMC4024999.8410fu4839546.29560.23554.72560.820.001296.12790.6392.950.37
Grays CreekMC4024999.845fu3762546.29558.98553.68559.450.001195.56677.1886.890.35
Grays CreekMC4024999.842fu2596546.29557.12552.38557.50.001114.94525.2676.090.33
Grays CreekMC4024960Bridge
Grays CreekMC4024940.17100fu8665546563.58556.88564.510.001087.971378.29190.440.37
Grays CreekMC4024940.1750fu7116546562.37555.87563.150.0017.261209.14178.440.35
Grays CreekMC4024940.1725fu6104546561.47555.1562.150.000956.761085.09167.180.34
Grays CreekMC4024940.1710fu4839546560.18554.02560.740.000896.09910.48148.730.32
Grays CreekMC4024940.175fu3762546558.93553559.380.000835.41744.79129.510.3
Grays CreekMC4024940.172fu2596546557.09551.7557.420.000794.61567.9478.960.29
Grays CreekMC4024616.92100fu8665545.73563.49564.030.00086.892436.14388.970.31
Grays CreekMC4024616.9250fu7116545.73562.19562.760.000866.771944.51362.330.32
Grays CreekMC4024616.9225fu6104545.73561.23561.810.000916.621612.02335.280.32
Grays CreekMC4024616.9210fu4839545.73559.86560.440.000986.381172.68302.470.33
Grays CreekMC4024616.925fu3762545.73558.54559.070.000995.92816.75239.710.32
Grays CreekMC4024616.922fu2596545.73556.71557.110.000955.12519.9396.070.31
Grays CreekMC4024515.79100fu8496545.64563.07563.910.001077.871679216.250.36
Grays CreekMC4024515.7950fu7019545.64561.9562.640.001037.311429.05209.420.35
Grays CreekMC4024515.7925fu6023545.64561.03561.70.000996.881249.89202.350.34
Grays CreekMC4024515.7910fu4771545.64559.76560.350.000956.281001.29189.390.33
Grays CreekMC4024515.795fu3708545.64558.47558.960.000925.68773.62162.730.32
Grays CreekMC4024515.792fu2558545.64556.64557.010.000894.9531.7592.990.3
Grays CreekMC4024224.08100fu8496545.4562.83563.580.000977.341825.64361.910.35
Grays CreekMC4024224.0850fu7019545.4561.67562.330.000926.761443.65220.190.33
Grays CreekMC4024224.0825fu6023545.4560.81561.40.000896.321262.19202.250.32
Grays CreekMC4024224.0810fu4771545.4559.57560.060.000845.731025.34178.540.31
Grays CreekMC4024224.085fu3708545.4558.27558.680.000825.18807.53158.650.3
Grays CreekMC4024224.082fu2558545.4556.43556.740.000824.51571.3291.560.29
D- 2
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4023861.49100fu8496545.09562.61563.210.000856.951889.45293.340.32
Grays CreekMC4023861.4950fu7019545.09561.4561.990.000876.651557.83262.140.32
Grays CreekMC4023861.4925fu6023545.09560.51561.070.000886.41330.82246.520.32
Grays CreekMC4023861.4910fu4771545.09559.2559.740.000916.051023.35223.630.31
Grays CreekMC4023861.495fu3708545.09557.89558.370.000915.59744.6190.20.31
Grays CreekMC4023861.492fu2558545.09556.09556.440.000854.74539.9765.210.29
Grays CreekMC4023453.03100fu8496544.75562.51562.870.000585.762626.2572.770.27
Grays CreekMC4023453.0350fu7019544.75561.24561.630.000665.752071.89391.830.28
Grays CreekMC4023453.0325fu6023544.75560.3560.720.000725.751713.36366.370.29
Grays CreekMC4023453.0310fu4771544.75558.91559.360.000835.691243.01309.820.3
Grays CreekMC4023453.035fu3708544.75557.53557.980.000925.48857.41249.780.31
Grays CreekMC4023453.032fu2558544.75555.71556.070.000944.85527.9267.290.3
Grays CreekMC4023014.6100fu8498544.38561.53562.440.001158.781940.6276.760.4
Grays CreekMC4023014.650fu7005544.38560.37561.20.001128.211631.92254.280.38
Grays CreekMC4023014.625fu6006544.38559.51560.280.001097.771420.11237.620.38
Grays CreekMC4023014.610fu4747544.38558.23558.920.001067.171131.43212.830.36
Grays CreekMC4023014.65fu3688544.38556.91557.530.001066.62865.55192.360.36
Grays CreekMC4023014.62fu2542544.38555.14555.630.001025.75570.16128.860.34
Grays CreekMC4022661.33100fu8498544.08561.33562.050.000827.522115.27317.960.33
Grays CreekMC4022661.3350fu7005544.08560.21560.820.000756.841784.73266.330.31
Grays CreekMC4022661.3325fu6006544.08559.36559.910.000716.391567.32250.20.3
Grays CreekMC4022661.3310fu4747544.08558.09558.560.000675.811260.87231.870.29
Grays CreekMC4022661.335fu3688544.08556.78557.180.000635.26971.77209.180.28
Grays CreekMC4022661.332fu2542544.08555.01555.310.000584.48649.54136.330.26
Grays CreekMC4022355.03100fu8498543.59561.2561.780.000767.142415.25298.290.31
Grays CreekMC4022355.0350fu7005543.59560.05560.580.000726.662076.61291.490.3
Grays CreekMC4022355.0325fu6006543.59559.2559.680.00076.31828.84286.410.29
Grays CreekMC4022355.0310fu4747543.59557.91558.350.000695.851464.53277.820.29
Grays CreekMC4022355.035fu3688543.59556.58556.990.000685.411109.99256.50.28
Grays CreekMC4022355.032fu2542543.59554.78555.120.000674.8686.77205.580.27
Grays CreekMC4022011.87100fu8498542.69560.71561.480.0017.591808.6241.860.35
Grays CreekMC4022011.8750fu7005542.69559.62560.290.000936.981550.1233.080.33
Grays CreekMC4022011.8725fu6006542.69558.81559.410.000896.531363.47226.060.32
Grays CreekMC4022011.8710fu4747542.69557.58558.090.000845.941091.67213.110.31
Grays CreekMC4022011.875fu3688542.69556.3556.740.00085.38830.28194.560.29
Grays CreekMC4022011.872fu2542542.69554.55554.880.000734.55567.0998.080.27
Grays CreekMC4021523100fu8498541.79559.76560.880.001429.041416.45184.170.41
Grays CreekMC402152350fu7005541.79558.83559.760.001258.131249.22174.690.39
Grays CreekMC402152325fu6006541.79558.12558.910.001147.471127.77167.430.36
Grays CreekMC402152310fu4747541.79557557.640.001016.63946.41155.830.34
Grays CreekMC40215235fu3688541.79555.79556.310.000915.88766.85140.910.32
Grays CreekMC40215232fu2542541.79554.13554.50.000794.91563.35103.570.29
Grays CreekMC4021066.23100fu8498541.5559.49560.250.000947.421981.63438.840.34
D- 3
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4021066.2350fu7005541.5558.51559.210.000896.91560.15422.950.33
Grays CreekMC4021066.2325fu6006541.5557.86558.420.000776.21302.42195.940.31
Grays CreekMC4021066.2310fu4747541.5556.76557.210.000685.461100.95173.120.28
Grays CreekMC4021066.235fu3688541.5555.58555.930.000614.81908.65151.830.26
Grays CreekMC4021066.232fu2542541.5553.92554.170.000534.03678.31125.030.24
Grays CreekMC4020762.8100fu8498541.29559.22559.950.001027.662035.44291.280.35
Grays CreekMC4020762.850fu7005541.29558.28558.910.000937.011766.62281.420.33
Grays CreekMC4020762.825fu6006541.29557.62558.170.000856.491582.02274.450.31
Grays CreekMC4020762.810fu4747541.29556.5556.980.000795.91281.5262.710.3
Grays CreekMC4020762.85fu3688541.29555.3555.720.000755.36979.25234.390.29
Grays CreekMC4020762.82fu2542541.29553.66553.980.000684.58639.82170.70.27
Grays CreekMC4020394.32100fu8498541.05559.2559.570.000565.822567.5365.230.27
Grays CreekMC4020394.3250fu7005541.05558.23558.570.000545.432220.02355.010.26
Grays CreekMC4020394.3225fu6006541.05557.55557.860.000515.111981.21347.80.25
Grays CreekMC4020394.3210fu4747541.05556.4556.690.00054.781588.72335.620.24
Grays CreekMC4020394.325fu3688541.05555.17555.450.000514.491195.7298.040.24
Grays CreekMC4020394.322fu2542541.05553.5553.740.000524.03758.05210.280.24
Grays CreekMC4020093.38100fu8498540.85558.79559.350.000887.032128.24309.090.33
Grays CreekMC4020093.3850fu7005540.85557.87558.360.000826.491849.4297.150.32
Grays CreekMC4020093.3825fu6006540.85557.22557.670.000776.081658.36292.340.3
Grays CreekMC4020093.3810fu4747540.85556.09556.50.000765.671332283.940.3
Grays CreekMC4020093.385fu3688540.85554.85555.250.000795.35994.67261.090.3
Grays CreekMC4020093.382fu2542540.85553.18553.530.000824.84607.36174.640.29
Grays CreekMC4019599.35100fu8498540.52558.27558.910.000857.181918.56451.720.33
Grays CreekMC4019599.3550fu7005540.52557.41557.970.000766.531638.59265.710.3
Grays CreekMC4019599.3525fu6006540.52556.83557.310.0006861487.21251.840.29
Grays CreekMC4019599.3510fu4747540.52555.76556.160.000615.381231.75226.110.27
Grays CreekMC4019599.355fu3688540.52554.57554.90.000564.83980.25194.680.25
Grays CreekMC4019599.352fu2542540.52552.94553.190.000494.08705.02140.040.23
Grays CreekMC4019487.9100fu8498540.44558.53558.710.00044.864851.06949.140.22
Grays CreekMC4019487.950fu7005540.44557.61557.80.00044.684036.5756.740.22
Grays CreekMC4019487.925fu6006540.44556.98557.160.000394.513561.18747.390.22
Grays CreekMC4019487.910fu4747540.44555.84556.050.000444.512718.83728.410.23
Grays CreekMC4019487.95fu3688540.44554.55554.820.000564.721802.48695.380.25
Grays CreekMC4019487.92fu2542540.44552.77553.120.000744.82680.89276.280.28
Grays CreekMC4019289.87100fu8498540.3557.95558.550.000897.162154.22351.970.33
Grays CreekMC4019289.8750fu7005540.3557.13557.650.000816.551871.93332.680.31
Grays CreekMC4019289.8725fu6006540.3556.57557.030.000736.041690.23319.650.3
Grays CreekMC4019289.8710fu4747540.3555.51555.920.000685.521366.43292.590.28
Grays CreekMC4019289.875fu3688540.3554.32554.690.000675.091036.67261.370.27
Grays CreekMC4019289.872fu2542540.3552.67552.970.000654.48654.76194.810.26
Grays CreekMC4019055.63100fu8498540.15557.49558.280.001468.972256.08344.810.42
Grays CreekMC4019055.6350fu7005540.15556.68557.40.001358.31980.44342.140.4
D- 4
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4019055.6325fu6006540.15556.16556.80.001237.721800.6340.390.38
Grays CreekMC4019055.6310fu4747540.15555.09555.690.001217.211447.98320.320.37
Grays CreekMC4019055.635fu3688540.15553.86554.460.001286.881075.57290.160.38
Grays CreekMC4019055.632fu2542540.15552.13552.720.001456.48626.04225.340.39
Grays CreekMC4018721.43100fu8228539.93557.39557.860.000716.321853.19291.660.29
Grays CreekMC4018721.4350fu6792539.93556.59557.010.000655.851626.61276.920.28
Grays CreekMC4018721.4325fu5817539.93556.08556.450.000585.411486.52267.410.26
Grays CreekMC4018721.4310fu4589539.93555.02555.350.000565.011215.36243.470.25
Grays CreekMC4018721.435fu3561539.93553.78554.10.000574.7933.07209.550.25
Grays CreekMC4018721.432fu2449539.93552.09552.340.000544.09648.16126.060.24
Grays CreekMC4018332.71100fu8228539.68557.36557.60.000465.032560.96456.890.23
Grays CreekMC4018332.7150fu6792539.68556.54556.770.000454.792198.59427.330.23
Grays CreekMC4018332.7125fu5817539.68556.01556.230.000424.521979.33408.410.22
Grays CreekMC4018332.7110fu4589539.68554.91555.140.000474.471545.1377.430.23
Grays CreekMC4018332.715fu3561539.68553.59553.870.000594.661074.46330.010.25
Grays CreekMC4018332.712fu2449539.68551.75552.090.000774.66569.17176.470.28
Grays CreekMC4018033.33100fu8228539.48557.24557.490.000455.212713.77625.210.24
Grays CreekMC4018033.3350fu6792539.48556.42556.660.000444.972254.88489.210.23
Grays CreekMC4018033.3325fu5817539.48555.91556.120.00044.652024.54416.150.22
Grays CreekMC4018033.3310fu4589539.48554.79555.020.000444.591582.35373.440.23
Grays CreekMC4018033.335fu3561539.48553.44553.720.000544.731117.21308.380.25
Grays CreekMC4018033.332fu2449539.48551.55551.870.000674.67646.42191.740.27
Grays CreekMC4017490.56100fu8228539.13556.41557.080.001227.431801.23626.120.38
Grays CreekMC4017490.5650fu6792539.13555.55556.240.001287.241355.59436.20.38
Grays CreekMC4017490.5625fu5817539.13555.05555.720.001246.931143.24416.850.37
Grays CreekMC4017490.5610fu4589539.13553.86554.580.00146.81694.7195.970.39
Grays CreekMC4017490.565fu3561539.13552.68553.250.001316.04592.4178.850.37
Grays CreekMC4017490.562fu2449539.13550.97551.390.001175.19472.2364.430.34
Grays CreekMC4017086.34100fu8228538.86556.51556.70.000374.883701.03994.850.22
Grays CreekMC4017086.3450fu6792538.86555.63555.840.00044.882897.32784.120.22
Grays CreekMC4017086.3425fu5817538.86555.11555.330.00044.782505.13736.180.22
Grays CreekMC4017086.3410fu4589538.86553.94554.160.000414.541712.31342.860.22
Grays CreekMC4017086.345fu3561538.86552.59552.860.00054.671260.71328.50.24
Grays CreekMC4017086.342fu2449538.86550.7551.020.000644.68715.77220.60.26
Grays CreekMC4016683.82100fu8228538.61556.52556.590.000173.257301341.640.14
Grays CreekMC4016683.8250fu6792538.61555.63555.720.000193.264597.371185.520.15
Grays CreekMC4016683.8225fu5817538.61555.12555.20.000193.164013.651092.340.15
Grays CreekMC4016683.8210fu4589538.61553.93554.020.00023.092800.82679.80.15
Grays CreekMC4016683.825fu3561538.61552.55552.680.00033.461892.58631.150.18
Grays CreekMC4016683.822fu2449538.61550.53550.770.000534.06809.57370.270.24
Grays CreekMC4016163.5100fu8228538.26556.32556.450.00034.014738.431680.470.19
Grays CreekMC4016163.550fu6792538.26555.27555.530.000514.963054.421508.270.24
Grays CreekMC4016163.525fu5817538.26554.59554.990.000695.572060.11414.670.28
D- 5
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4016163.510fu4589538.26553.27553.780.000885.81971.89194.10.31
Grays CreekMC4016163.55fu3561538.26551.98552.40.000845.23750.55148.450.3
Grays CreekMC4016163.52fu2449538.26550.1550.420.000834.52541.8673.620.29
Grays CreekMC4015816.21100fu8228538.03556.26556.360.000253.745286.41823.370.17
Grays CreekMC4015816.2150fu6792538.03555.13555.360.000494.943298.291664.840.24
Grays CreekMC4015816.2125fu5817538.03554.17554.710.00096.391779.471505.930.32
Grays CreekMC4015816.2110fu4589538.03552.81553.430.001076.43899.86259.320.34
Grays CreekMC4015816.215fu3561538.03551.56552.070.001015.77667.74133.840.33
Grays CreekMC4015816.212fu2449538.03549.72550.10.000964.9349762.310.31
Grays CreekMC4015341.18100fu8228537.97556.25556.30.000143.026965.352097.430.13
Grays CreekMC4015341.1850fu6792537.97555.11555.230.000253.94651.551945.030.18
Grays CreekMC4015341.1825fu5817537.97554.08554.380.000515.282744.461755.320.25
Grays CreekMC4015341.1810fu4589537.97552.7553.020.000565.171609.22481.120.25
Grays CreekMC4015341.185fu3561537.97551.28551.660.000675.221043.55359.350.27
Grays CreekMC4015341.182fu2449537.97549.34549.70.000724.8538.3885.270.27
Grays CreekMC4014886.32100fu8228537.78556.22556.270.000132.8276032455.670.13
Grays CreekMC4014886.3250fu6792537.78555.03555.160.000233.644804.612213.630.17
Grays CreekMC4014886.3225fu5817537.78554554.210.000354.212654.25982.060.21
Grays CreekMC4014886.3210fu4589537.78552.56552.810.000434.321566.63459.10.22
Grays CreekMC4014886.325fu3561537.78551.13551.390.000484.191081.21305.880.23
Grays CreekMC4014886.322fu2449537.78549.16549.380.000533.82647.3788.650.23
Grays CreekMC4014379.56100fu8228537.57555.67556.120.000596.282900.651282.810.27
Grays CreekMC4014379.5650fu6792537.57554.33554.920.000756.651703.27502.10.3
Grays CreekMC4014379.5625fu5817537.57553.38553.930.000746.321405.43234.940.3
Grays CreekMC4014379.5610fu4589537.57552.05552.520.00075.751126.11185.990.28
Grays CreekMC4014379.565fu3561537.57550.69551.090.000665.18885.79170.430.27
Grays CreekMC4014379.562fu2449537.57548.78549.090.000624.44600.22115.820.26
Grays CreekMC4013939.26100fu8076537.39555.62555.850.000374.693897.081375.940.21
Grays CreekMC4013939.2650fu6664537.39554.21554.570.000545.322279.17889.750.26
Grays CreekMC4013939.2625fu5704537.39553.26553.590.000535.031768.84160.25
Grays CreekMC4013939.2610fu4494537.39551.86552.20.000594.881243.81243.10.26
Grays CreekMC4013939.265fu3483537.39550.46550.790.000634.63917.7222.240.26
Grays CreekMC4013939.262fu2389537.39548.52548.790.000674.13582.8891.540.26
Grays CreekMC4013473.4100fu8076537.12555.27555.650.000455.292517.04532.660.24
Grays CreekMC4013473.450fu6664537.12554.02554.340.000424.821987.83299.670.23
Grays CreekMC4013473.425fu5704537.12553.07553.360.000414.531723.36263.860.22
Grays CreekMC4013473.410fu4494537.12551.71551.950.000394.111397.37216.610.22
Grays CreekMC4013473.45fu3483537.12550.32550.530.000393.741117.44186.390.21
Grays CreekMC4013473.42fu2389537.12548.35548.520.000413.32787.49150.090.21
Grays CreekMC4013030.84100fu8076537.04554.3555.290.001318.631562.42225.080.4
Grays CreekMC4013030.8450fu6664537.04553.145540.001257.971318.46200.670.38
Grays CreekMC4013030.8425fu5704537.04552.25553.030.001227.511144.58189.370.38
Grays CreekMC4013030.8410fu4494537.04550.95551.640.001196.88908.72174.690.36
D- 6
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4013030.845fu3483537.04549.62550.220.001176.29687.89151.250.35
Grays CreekMC4013030.842fu2389537.04547.74548.210.001185.49463.6790.270.34
Grays CreekMC4012726.5100fu8076536.89554.25554.870.000796.941939.94242.390.31
Grays CreekMC4012726.550fu6664536.89553.07553.620.000746.41661.14229.830.29
Grays CreekMC4012726.525fu5704536.89552.17552.670.0007161459.44220.420.28
Grays CreekMC4012726.510fu4494536.89550.87551.290.000665.431183.15204.060.27
Grays CreekMC4012726.55fu3483536.89549.53549.890.000634.9922.92182.070.26
Grays CreekMC4012726.52fu2389536.89547.63547.90.00064.21619.13130.340.24
Grays CreekMC4012420.08100fu8076536.76554.11554.630.000646.131857.16196.980.29
Grays CreekMC4012420.0850fu6664536.76552.94553.380.00065.611630.56191.40.27
Grays CreekMC4012420.0825fu5704536.76552.05552.440.000575.241462.02187.670.26
Grays CreekMC4012420.0810fu4494536.76550.75551.080.000544.731222.14182.250.25
Grays CreekMC4012420.085fu3483536.76549.41549.690.000534.29982.27173.780.24
Grays CreekMC4012420.082fu2389536.76547.48547.710.000563.8668.43140.160.24
Grays CreekMC4012124.48100fu8076536.64553.47554.340.001158.191734.71290.880.38
Grays CreekMC4012124.4850fu6664536.64552.32553.110.001117.641417.01261.790.37
Grays CreekMC4012124.4825fu5704536.64551.46552.180.001077.171206.5228.260.36
Grays CreekMC4012124.4810fu4494536.64550.24550.840.000996.46961.35174.450.34
Grays CreekMC4012124.485fu3483536.64548.96549.460.000945.8761.27142.720.32
Grays CreekMC4012124.482fu2389536.64547.09547.480.000935.05530.48104.10.31
Grays CreekMC4011864.69100fu8076536.53553.5554.010.000696.42502.08451.10.3
Grays CreekMC4011864.6950fu6664536.53552.31552.790.00076.11992.54404.170.3
Grays CreekMC4011864.6925fu5704536.53551.43551.880.00075.81656.82353.090.29
Grays CreekMC4011864.6910fu4494536.53550.17550.570.000685.311267.41268.150.28
Grays CreekMC4011864.695fu3483536.53548.87549.210.000674.84961.02205.210.27
Grays CreekMC4011864.692fu2389536.53546.96547.240.000714.31640.31390.27
Grays CreekMC4011536.53100fu8076536.4552.95553.720.000967.521841.84471.290.35
Grays CreekMC4011536.5350fu6664536.4551.79552.50.000967.091423.28279.780.35
Grays CreekMC4011536.5325fu5704536.4550.97551.60.000916.611212.31236.680.33
Grays CreekMC4011536.5310fu4494536.4549.8550.310.000825.88971.09179.140.31
Grays CreekMC4011536.535fu3483536.4548.55548.970.000765.24772.84139.380.29
Grays CreekMC4011536.532fu2389536.4546.685470.000754.51557.2195.670.28
Grays CreekMC4011175.72100fu8076536.24552.74553.340.000877.12041.69576.280.33
Grays CreekMC4011175.7250fu6664536.24551.51552.130.000936.951465.87289.360.34
Grays CreekMC4011175.7225fu5704536.24550.62551.260.0016.861211.12278.740.34
Grays CreekMC4011175.7210fu4494536.24549.34549.970.001056.53882.07214.210.35
Grays CreekMC4011175.725fu3483536.24548.13548.650.000985.85686.08113.490.33
Grays CreekMC4011175.722fu2389536.24546.3546.680.000955.02506.3988.010.31
Grays CreekMC4010948.73100fu8076536.15552.96553.10.0002744604.221029.110.18
Grays CreekMC4010948.7350fu6664536.15551.72551.890.000324.053444.19724.660.19
Grays CreekMC4010948.7325fu5704536.15550.85510.000384.222782.87711.630.21
Grays CreekMC4010948.7310fu4494536.15549.44549.70.00054.51840.18640.850.24
Grays CreekMC4010948.735fu3483536.15548.11548.410.000594.511083.34499.280.25
D- 7
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC4010948.732fu2389536.15546.23546.470.000613.98601.9391.180.25
Grays CreekMC4010433.88100fu7973535.39552.885530.000253.813950.93884.040.18
Grays CreekMC4010433.8850fu6584535.39551.63551.760.000273.742978.15588.540.18
Grays CreekMC4010433.8825fu5640535.39550.68550.840.000343.982423575.990.2
Grays CreekMC4010433.8810fu4447535.39549.23549.470.000514.461621.61500.50.24
Grays CreekMC4010433.885fu3451535.39547.74548.080.000764.89972.79372.470.29
Grays CreekMC4010433.882fu2373535.39545.71546.060.001014.77499.1675.280.32
Grays CreekMC4010089.29100fu7973534.6552.49552.880.000515.452258.97602.30.25
Grays CreekMC4010089.2950fu6584534.6551.29551.640.00055.11741.5314.320.25
Grays CreekMC4010089.2925fu5640534.6550.34550.70.0005451448.88302.780.25
Grays CreekMC4010089.2910fu4447534.6548.95549.290.000564.721076.03217.460.25
Grays CreekMC4010089.295fu3451534.6547.56547.850.000564.3839.29136.940.25
Grays CreekMC4010089.292fu2373534.6545.54545.760.000583.79626.0383.730.24
Grays CreekMC409731.165100fu7973533.95551.77552.60.00097.581446.25170.060.34
Grays CreekMC409731.16550fu6584533.95550.7551.380.000816.861266.56163.440.32
Grays CreekMC409731.16525fu5640533.95549.85550.450.000756.331131.41157.350.3
Grays CreekMC409731.16510fu4447533.95548.58549.050.000675.61940.58141.350.28
Grays CreekMC409731.1655fu3451533.95547.26547.630.00064.95767.92116.160.26
Grays CreekMC409731.1652fu2373533.95545.29545.560.000564.17582.5478.440.24
Grays CreekMC409521.34100fu7973533.86551.64552.390.000857.251495.61184.520.32
Grays CreekMC409521.3450fu6584533.86550.57551.20.000776.551304.61173.30.3
Grays CreekMC409521.3425fu5640533.86549.74550.280.000716.041164.09163.620.29
Grays CreekMC409521.3410fu4447533.86548.47548.90.000635.36967.72145.950.27
Grays CreekMC409521.345fu3451533.86547.15547.50.000584.73789.13124.50.25
Grays CreekMC409521.342fu2373533.86545.19545.440.000534597.0772.80.23
Grays CreekMC409136.59100fu7973533.7551.75552.030.000435.252626.84350.030.23
Grays CreekMC409136.5950fu6584533.7550.6550.880.000455.092230.8339.20.23
Grays CreekMC409136.5925fu5640533.7549.71549.980.000475.011931.13330.390.24
Grays CreekMC409136.5910fu4447533.7548.34548.640.000534.961490.25315.770.25
Grays CreekMC409136.595fu3451533.7546.94547.270.00064.91073.16272.990.26
Grays CreekMC409136.592fu2373533.7544.86545.190.000724.66603.75156.720.27
Grays CreekMC409020.513100fu7973533.65551.74551.980.000384.892563.33337.270.22
Grays CreekMC409020.51350fu6584533.65550.58550.830.00044.762180.27327.460.22
Grays CreekMC409020.51325fu5640533.65549.69549.930.000424.691889.46319.820.23
Grays CreekMC409020.51310fu4447533.65548.31548.580.000494.71457.44308.10.24
Grays CreekMC409020.5135fu3451533.65546.89547.190.000584.711042.08272.140.25
Grays CreekMC409020.5132fu2373533.65544.79545.10.000724.54575.18144.190.27
Grays CreekMC408762.03100fu7973532.74551.38543.32551.810.00065.281526.45135.630.27
Grays CreekMC408762.0350fu6584532.74550.32542.45550.680.000564.781384.74132.790.26
Grays CreekMC408762.0325fu5640532.74549.49541.78549.80.000534.431275.34130.560.25
Grays CreekMC408762.0310fu4447532.74548.19540.61548.440.000524.011107.99127.070.24
Grays CreekMC408762.035fu3451532.74546.8539.7547.010.00053.68936.67118.050.23
Grays CreekMC408762.032fu2373532.74544.7538.55544.880.000523.37704.25103.230.23
D- 8
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC408700Bridge
Grays CreekMC408692.477100fu7973532.43551.09543.36551.680.000686.291459.37135.760.29
Grays CreekMC408692.47750fu6584532.43550.09542.58550.570.00065.631325.7131.850.27
Grays CreekMC408692.47725fu5640532.43549.3541.94549.70.000545.161222.41128.750.26
Grays CreekMC408692.47710fu4447532.43548.05540.83548.360.000494.561063.94123.840.24
Grays CreekMC408692.4775fu3451532.43546.69539.89546.940.000464.06902.09114.740.23
Grays CreekMC408692.4772fu2373532.43544.62538.74544.820.000493.57679.05100.810.23
Grays CreekMC408346.782100fu7973531.57550.92551.430.000576.322447.87380.360.27
Grays CreekMC408346.78250fu6584531.57549.92550.360.000535.832068.26368.950.26
Grays CreekMC408346.78225fu5640531.57549.13549.520.000495.41794.95325.250.25
Grays CreekMC408346.78210fu4447531.57547.87548.20.000444.861418.92274.180.23
Grays CreekMC408346.7825fu3451531.57546.52546.790.00044.321097.64202.190.22
Grays CreekMC408346.7822fu2373531.57544.46544.670.000373.7751.46132.140.2
Grays CreekMC407981.765100fu7818531.1551.07551.230.000163.383224.01410.710.15
Grays CreekMC407981.76550fu6453531.1550.05550.180.000143.082835.57348.650.14
Grays CreekMC407981.76525fu5528531.1549.24549.360.000132.862562.17330.890.13
Grays CreekMC407981.76510fu4363531.1547.96548.050.000122.572152.57305.470.12
Grays CreekMC407981.7655fu3388531.1546.58546.660.000112.31759.61266.260.12
Grays CreekMC407981.7652fu2324531.1544.5544.560.00011.971272.48198.890.11
Grays CreekMC407671.703100fu7818528.46550.83540.64551.120.000344.341822.57140.730.2
Grays CreekMC407671.70350fu6453528.46549.86539.65550.090.000293.851688.47137.430.19
Grays CreekMC407671.70325fu5528528.46549.09538.87549.280.000263.51583.48134.790.18
Grays CreekMC407671.70310fu4363528.46547.84537.7547.990.000233.081417.79130.510.16
Grays CreekMC407671.7035fu3388528.46546.49536.74546.610.000212.721244.14127.20.15
Grays CreekMC407671.7032fu2324528.46544.42535.52544.510.000212.36984.57123.360.15
Grays CreekMC407650Bridge
Grays CreekMC407620.26100fu7818530.59550.72541.6551.040.000394.541738.76140.470.22
Grays CreekMC407620.2650fu6453530.59549.77540.76550.030.000344.041607.18137.480.2
Grays CreekMC407620.2625fu5528530.59549.01540.09549.220.000313.691503.6135.080.19
Grays CreekMC407620.2610fu4363530.59547.78539.13547.940.000283.261338.77131.160.18
Grays CreekMC407620.265fu3388530.59546.43538.17546.560.000272.911164.95128.050.17
Grays CreekMC407620.262fu2324530.59544.36536.99544.470.000272.57904123.990.17
Grays CreekMC407270.043100fu7818530.36550.41550.850.000485.781887.96209.160.25
Grays CreekMC407270.04350fu6453530.36549.5549.860.000415.181699.55203.050.23
Grays CreekMC407270.04325fu5528530.36548.76549.080.000374.761551.97197.730.22
Grays CreekMC407270.04310fu4363530.36547.55547.810.000334.251317.13188.960.2
Grays CreekMC407270.0435fu3388530.36546.22546.440.00033.81073.47179.410.19
Grays CreekMC407270.0432fu2324530.36544.2544.350.000273.21777.55105.960.17
Grays CreekMC407062.312100fu7818530.25550.52550.70.000284.342820.82350.980.19
Grays CreekMC407062.31250fu6453530.25549.56549.740.000274.092489.25347.020.18
Grays CreekMC407062.31225fu5528530.25548.8548.960.000273.932225.88343.840.18
D- 9
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC407062.31210fu4363530.25547.55547.710.000283.831797.97338.610.18
Grays CreekMC407062.3125fu3388530.25546.18546.370.000333.861337.66332.90.19
Grays CreekMC407062.3122fu2324530.25544.04544.280.000443.94678.13280.290.22
Grays CreekMC406736.218100fu7818530.02550.47550.610.000234.223459.6411.920.18
Grays CreekMC406736.21850fu6453530.02549.52549.640.000213.953071.63406.440.17
Grays CreekMC406736.21825fu5528530.02548.76548.880.000213.772764.38400.770.16
Grays CreekMC406736.21810fu4363530.02547.51547.620.000213.612271.39381.820.16
Grays CreekMC406736.2185fu3388530.02546.14546.260.000233.551771.62348.530.17
Grays CreekMC406736.2182fu2324530.02543.98544.130.000313.681112.08261.150.19
Grays CreekMC406165.813100fu7818529.91550.36550.480.000183.673497.76332.540.16
Grays CreekMC406165.81350fu6453529.91549.43549.530.000163.333189.81327.610.15
Grays CreekMC406165.81325fu5528529.91548.68548.770.000153.092945.17323.640.14
Grays CreekMC406165.81310fu4363529.91547.44547.510.000142.812547.21316.420.13
Grays CreekMC406165.8135fu3388529.91546.08546.140.000142.62122.18307.650.13
Grays CreekMC406165.8132fu2324529.91543.92543.980.000152.451475.19262.540.13
Grays CreekMC405969.827100fu7818529.8550.36550.450.000123.223979.89333.870.13
Grays CreekMC405969.82750fu6453529.8549.43549.50.000112.93670.5329.450.12
Grays CreekMC405969.82725fu5528529.8548.68548.749.5E-052.683424.36325.890.12
Grays CreekMC405969.82710fu4363529.8547.44547.488.5E-052.413023.06319.790.11
Grays CreekMC405969.8275fu3388529.8546.07546.110.000082.22592.17312.810.1
Grays CreekMC405969.8272fu2324529.8543.92543.958.4E-052.011934.08292.840.1
Grays CreekMC405497.025100fu7818529.71550.25550.370.000234.33595.95317.20.18
Grays CreekMC405497.02550fu6453529.71549.34549.430.00023.883307.12311.920.16
Grays CreekMC405497.02525fu5528529.71548.59548.680.000183.63077.26307.650.15
Grays CreekMC405497.02510fu4363529.71547.36547.430.000163.272701.86300.350.15
Grays CreekMC405497.0255fu3388529.71546546.060.000163.032299.27292.110.14
Grays CreekMC405497.0252fu2324529.71543.85543.90.000152.621689.33230.750.13
Grays CreekMC405332.011100fu7818529.5550.2550.330.000183.913583.93316.460.16
Grays CreekMC405332.01150fu6453529.5549.29549.40.000163.513298.15311.550.15
Grays CreekMC405332.01125fu5528529.5548.56548.650.000143.233070.05307.570.14
Grays CreekMC405332.01110fu4363529.5547.33547.410.000132.92696.28300.150.13
Grays CreekMC405332.0115fu3388529.5545.97546.040.000122.652295.47291.250.12
Grays CreekMC405332.0112fu2324529.5543.83543.880.000112.311696.55239.180.12
Grays CreekMC404890.619100fu7818529.52550.15550.250.000153.444035.16392.750.15
Grays CreekMC404890.61950fu6453529.52549.24549.330.000133.113681.9388.010.14
Grays CreekMC404890.61925fu5528529.52548.51548.590.000122.893398.63384.160.13
Grays CreekMC404890.61910fu4363529.52547.28547.350.000122.642931.14376.960.12
Grays CreekMC404890.6195fu3388529.52545.92545.990.000112.472425.37368.370.12
Grays CreekMC404890.6192fu2324529.52543.77543.830.000122.21660.9257.860.12
Grays CreekMC404434.737100fu7818529.3550.1550.180.000143.414573.16428.170.14
Grays CreekMC404434.73750fu6453529.3549.2549.270.000123.14189.58423.450.13
Grays CreekMC404434.73725fu5528529.3548.47548.530.000112.883881.31419.610.12
Grays CreekMC404434.73710fu4363529.3547.24547.30.000112.653370.66412.60.12
D- 10
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC404434.7375fu3388529.3545.89545.930.000112.52815.52404.450.12
Grays CreekMC404434.7372fu2324529.3543.72543.780.000132.481954.27391.180.13
Grays CreekMC403987.229100fu7818529.15550.05550.120.000133.314708.59434.220.14
Grays CreekMC403987.22950fu6453529.15549.15549.210.0001234322.53429.540.13
Grays CreekMC403987.22925fu5528529.15548.43548.480.000112.794011.62425.730.12
Grays CreekMC403987.22910fu4363529.15547.2547.259.8E-052.553494.61419.310.11
Grays CreekMC403987.2295fu3388529.15545.85545.899.5E-052.372930.25411.930.11
Grays CreekMC403987.2292fu2324529.15543.67543.720.000112.292051.5397.390.12
Grays CreekMC403476.919100fu7818528.94549.98550.050.000133.224753.97446.860.13
Grays CreekMC403476.91950fu6453528.94549.09549.160.000112.924360.08442.420.12
Grays CreekMC403476.91925fu5528528.94548.37548.430.00012.714041.92438.780.12
Grays CreekMC403476.91910fu4363528.94547.15547.29.3E-052.473510.82432.460.11
Grays CreekMC403476.9195fu3388528.94545.8545.849.1E-052.292928.92425.080.11
Grays CreekMC403476.9192fu2324528.94543.62543.660.000112.22019.48410.070.11
Grays CreekMC403034.635100fu7818528.82549.71549.950.000345.182658.84245.210.22
Grays CreekMC403034.63550fu6453528.82548.87549.070.000294.642454.85241.020.2
Grays CreekMC403034.63525fu5528528.82548.18548.350.000264.272288.98237.560.19
Grays CreekMC403034.63510fu4363528.82546.99547.130.000233.822010.62230.570.17
Grays CreekMC403034.6355fu3388528.82545.65545.770.000223.461708.01222.340.17
Grays CreekMC403034.6352fu2324528.82543.48543.590.000233.191239.64208.520.17
Grays CreekMC402883.2100fu7818528.69549.56549.90.000355.52359.81233.440.22
Grays CreekMC402883.250fu6453528.69548.75549.020.00034.92172.6227.510.2
Grays CreekMC402883.225fu5528528.69548.08548.30.000264.482020.43222.570.19
Grays CreekMC402883.210fu4363528.69546.91547.090.000233.971765.59212.990.18
Grays CreekMC402883.25fu3388528.69545.59545.740.00023.531491.87201.470.16
Grays CreekMC402883.22fu2324528.69543.43543.560.000193.111077.97182.030.16
Grays CreekMC402340.215100fu7818528.61549.47549.690.000284.773248.48430.420.2
Grays CreekMC402340.21550fu6453528.61548.65548.850.000254.372901.09423.60.19
Grays CreekMC402340.21525fu5528528.61547.98548.160.000234.12615.75417.910.18
Grays CreekMC402340.21510fu4363528.61546.79546.970.000233.832127.794080.17
Grays CreekMC402340.2155fu3388528.61545.44545.620.000243.681585.06394.930.17
Grays CreekMC402340.2152fu2324528.61543.27543.440.000253.36845.05154.130.17
Grays CreekMC401959.168100fu7818528.37549.36549.580.00034.313345.16646.190.2
Grays CreekMC401959.16850fu6453528.37548.54548.750.000284.042819.67639.20.19
Grays CreekMC401959.16825fu5528528.37547.86548.060.000283.872383.95633.340.19
Grays CreekMC401959.16810fu4363528.37546.66546.870.000293.711634.16623.130.19
Grays CreekMC401959.1685fu3388528.37545.35545.520.000283.371102.11159.310.18
Grays CreekMC401959.1682fu2324528.37543.19543.330.000282.93805.99115.140.17
Grays CreekMC401417.51100fu7818528.11549.19549.420.000354.493704.43975.20.21
Grays CreekMC401417.5150fu6453528.11548.33548.580.000374.442869.61964.640.21
Grays CreekMC401417.5125fu5528528.11547.6547.880.00044.452170.1955.710.22
Grays CreekMC401417.5110fu4363528.11546.38546.670.000434.331117.15453.990.23
Grays CreekMC401417.515fu3388528.11545.12545.340.000393.79922.51109.760.21
D- 11
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC401417.512fu2324528.11542.97543.140.000413.32703.4694.160.21
Grays CreekMC40834.788100fu7818527.9548.99549.240.000364.523829.431497.620.21
Grays CreekMC40834.78850fu6453527.9548.05548.360.000424.662442.381465.480.23
Grays CreekMC40834.78825fu5528527.9547.32547.640.000434.571392.451109.570.23
Grays CreekMC40834.78810fu4363527.9546.18546.420.0003741118.5123.890.21
Grays CreekMC40834.7885fu3388527.9544.93545.120.000333.49974.86107.580.19
Grays CreekMC40834.7882fu2324527.9542.78542.930.000323.03767.2189.820.18
Grays CreekMC40171.067100fu7818527.59548.71540.14548.990.00044.913107.58828.590.22
Grays CreekMC40171.06750fu6453527.59547.8539.11548.080.00044.712428.95692.190.22
Grays CreekMC40171.06725fu5528527.59547.07538.33547.350.00044.551954.66565.390.22
Grays CreekMC40171.06710fu4363527.59545.9537.24546.160.00044.281453.93380.350.22
Grays CreekMC40171.0675fu3388527.59544.63536.23544.880.00043.981000.05327.450.21
Grays CreekMC40171.0672fu2324527.59542.5534.89542.690.00043.45674.7779.930.2
Grays CreekMC15059690.02100fu1814640.13643.87643.87645.530.0168510.32175.7553.531
Grays CreekMC15059690.0250fu1495640.13643.46643.46644.930.01759.74153.4652.741.01
Grays CreekMC15059690.0225fu1249640.13643.12643.12644.430.018029.21135.6352.111.01
Grays CreekMC15059690.0210fu927640.13642.63642.63643.720.019018.38110.6351.521.01
Grays CreekMC15059690.025fu713640.13642.28642.28643.20.019897.792.6551.091.01
Grays CreekMC15059690.022fu460640.13641.81641.81642.510.021366.768.6549.571
Grays CreekMC15059289.29100fu1814602606.81607.480.008476.55276.77101.910.7
Grays CreekMC15059289.2950fu1495602606.4607.030.009426.34235.6598.780.72
Grays CreekMC15059289.2925fu1249602606.21606.720.008585.78216.297.320.68
Grays CreekMC15059289.2910fu927602605.94606.310.006954.85190.9995.470.6
Grays CreekMC15059289.295fu713602605.69605.980.006244.26167.1893.680.56
Grays CreekMC15059289.292fu460602605.25605.460.006223.63126.7890.570.54
Grays CreekMC15058967.26100fu1814598.34605.28605.820.003345.89312.575.970.48
Grays CreekMC15058967.2650fu1495598.34604.456050.004475.96251.5769.630.54
Grays CreekMC15058967.2625fu1249598.34603.57604.220.007076.47193.1163.750.65
Grays CreekMC15058967.2610fu927598.34602.54603.320.012557.1130.4857.820.83
Grays CreekMC15058967.265fu713598.34601.97601.88602.780.017327.2398.6154.350.95
Grays CreekMC15058967.262fu460598.34601.32601.31602.060.020666.9266.4544.611
Grays CreekMC15058657.09100fu1814595.76605.24605.350.000552.86828.09384.390.2
Grays CreekMC15058657.0950fu1495595.76604.12604.30.001033.44458.74242.140.27
Grays CreekMC15058657.0925fu1249595.76603.07603.280.001343.62344.9176.930.3
Grays CreekMC15058657.0910fu927595.76601.8602.010.001733.66253.267.470.33
Grays CreekMC15058657.095fu713595.76600.9601.110.002223.67194.4562.690.37
Grays CreekMC15058657.092fu460595.76599.92600.10.002683.39135.7756.90.39
Grays CreekMC15058540.22100fu2113595.42605.21605.290.000362.761204535.760.17
Grays CreekMC15058540.2250fu1726595.42603.98604.190.000893.84580.78405.110.26
Grays CreekMC15058540.2225fu1423595.42602.87603.120.00134.1381.35134.770.31
Grays CreekMC15058540.2210fu1060595.42601.51601.780.002014.22255.9770.220.37
Grays CreekMC15058540.225fu810595.42600.5600.790.003064.31188.4663.970.43
Grays CreekMC15058540.222fu549595.42599.24599.60.006294.83113.7853.510.58
D- 12
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC15058415.47100fu2113594.33605.21598.44605.240.00011.811623.8322.50.1
Grays CreekMC15058415.4750fu1726594.33603.95597.99604.090.000363.13573.99277.40.18
Grays CreekMC15058415.4725fu1423594.33602.84597.61602.980.000393.01495.76254.420.18
Grays CreekMC15058415.4710fu1060594.33601.49597.12601.60.000422.77401.19233.870.18
Grays CreekMC15058415.475fu810594.33600.49596.75600.580.000432.53333.98111.820.18
Grays CreekMC15058415.472fu549594.33599.24596.3599.320.000462.25254.5595.150.18
Grays CreekMC15058350Culvert
Grays CreekMC15058314.6100fu2113593.74601.66598.49602.140.001355.67407.88193.010.37
Grays CreekMC15058314.650fu1726593.74601.29597.99601.640.001094.91383.03184.020.33
Grays CreekMC15058314.625fu1423593.74600.83597.56601.110.000954.38352.75173.380.31
Grays CreekMC15058314.610fu1060593.74600.13596.97600.340.00083.71307.79151.450.28
Grays CreekMC15058314.65fu810593.74599.52596.5599.670.00073.21269.01102.730.25
Grays CreekMC15058314.62fu549593.74598.61595.95598.730.000652.71213.0675.070.24
Grays CreekMC15058053.9100fu2113593.75601.25601.690.002115.7501.29307.770.4
Grays CreekMC15058053.950fu1726593.75600.84601.250.002015.32393.48226.510.39
Grays CreekMC15058053.925fu1423593.75600.36600.740.001984.99306.9133.330.38
Grays CreekMC15058053.910fu1060593.75599.75600.020.001694.25255.4762.030.34
Grays CreekMC15058053.95fu810593.75599.19599.40.001513.7221.958.520.32
Grays CreekMC15058053.92fu549593.75598.31598.470.001523.18172.85530.31
Grays CreekMC15057618.94100fu2113591.92600.85601.060.000884.21800.86426.450.27
Grays CreekMC15057618.9450fu1726591.92600.45600.660.000843.97646.14348.590.26
Grays CreekMC15057618.9425fu1423591.92599.99600.170.000783.66509.59195.940.25
Grays CreekMC15057618.9410fu1060591.92599.4599.550.000673.19406.04157.20.23
Grays CreekMC15057618.945fu810591.92598.88598.990.000572.78332.69121.910.21
Grays CreekMC15057618.942fu549591.92598.02598.10.000482.28252.3766.590.18
Grays CreekMC15057191.19100fu2113591.8600.69600.780.000423.081170.14549.60.19
Grays CreekMC15057191.1950fu1726591.8600.28600.380.000432.99961.36485.550.19
Grays CreekMC15057191.1925fu1423591.8599.79599.890.000473746.27386.190.19
Grays CreekMC15057191.1910fu1060591.8599.2599.30.000462.82541.33303.290.19
Grays CreekMC15057191.195fu810591.8598.68598.770.000432.58404.08227.330.18
Grays CreekMC15057191.192fu549591.8597.86597.930.000352.11282.2970.20.16
Grays CreekMC15056685.6100fu2113591.61600.59596.21600.630.00022.161672.9582.770.13
Grays CreekMC15056685.650fu1726591.61600.19595.79600.220.00022.091440.85569.080.13
Grays CreekMC15056685.625fu1423591.61599.69595.3599.730.00022.011188.36468.250.13
Grays CreekMC15056685.610fu1060591.61599.1594.69599.140.00021.9925.69416.880.13
Grays CreekMC15056685.65fu810591.61598.58594.23598.620.00021.8721.48359.880.13
Grays CreekMC15056685.62fu549591.61597.75593.71597.790.00021.65478.44231.970.12
Grays CreekMC16079079.81100fu694732.96737.66738.40.01888.54130.7994.750.82
Grays CreekMC16079079.8150fu595732.96737.59737.59738.20.01577.7124.2593.580.75
Grays CreekMC16079079.8125fu528732.96737.49737.49738.060.015057.38114.5691.480.73
Grays CreekMC16079079.8110fu438732.96737.3737.3737.860.01487.0398.287.010.72
Grays CreekMC16079079.815fu358732.96737.14737.14737.650.013966.5784.0682.950.69
D- 13
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16079079.812fu267732.96736.8736.8737.340.015816.4258.3266.60.72
Grays CreekMC16078976.19100fu694731.38737.45737.630.003384.64254.96124.750.38
Grays CreekMC16078976.1950fu595731.38737.26737.430.003124.34232.15119.220.36
Grays CreekMC16078976.1925fu528731.38737.2737.340.002673.98224.56117.470.33
Grays CreekMC16078976.1910fu438731.38737.02737.140.002333.62204.1113.450.31
Grays CreekMC16078976.195fu358731.38736.84736.940.002013.27184.05109.370.28
Grays CreekMC16078976.192fu267731.38736.58736.660.001672.85155.94103.520.26
Grays CreekMC16078928.98100fu694731.19737.37736.15737.480.002222.88307.01162.230.29
Grays CreekMC16078928.9850fu595731.19737.19735.95737.280.002122.7277.59156.220.28
Grays CreekMC16078928.9825fu528731.19737.14735.79737.210.001812.46269.32154.490.26
Grays CreekMC16078928.9810fu438731.19736.96735.59737.030.001622.23243.34148.930.24
Grays CreekMC16078928.985fu358731.19736.79735.41736.840.001442.01217.93143.270.23
Grays CreekMC16078928.982fu267731.19736.53734.99736.570.001271.75181.98134.870.21
Grays CreekMC16078910Culvert
Grays CreekMC16078899.74100fu694730.95736735.62736.430.009746.28181.32153.030.61
Grays CreekMC16078899.7450fu595730.95735.86735.5736.210.008255.62162.79120.260.56
Grays CreekMC16078899.7425fu528730.95735.74735.39736.060.007735.3149.2109.710.54
Grays CreekMC16078899.7410fu438730.95735.55735.18735.840.007414.97129.17102.350.52
Grays CreekMC16078899.745fu358730.95735.33734.91735.680.008785.1390.8793.80.56
Grays CreekMC16078899.742fu267730.95735.05734.47735.350.008324.6271.5582.540.53
Grays CreekMC16078853.29100fu694730.93735.93736.090.003623.85258.35146.340.38
Grays CreekMC16078853.2950fu595730.93735.78735.920.003323.57236.97141.650.36
Grays CreekMC16078853.2925fu528730.93735.66735.790.003163.39220.07137.750.35
Grays CreekMC16078853.2910fu438730.93735.47735.580.002953.14194.74131.440.33
Grays CreekMC16078853.295fu358730.93735.27735.370.002772.89169.81124.270.32
Grays CreekMC16078853.292fu267730.93734.96735.050.002792.66132.86111.490.31
Grays CreekMC16078808.55100fu694730.1735.57735.19735.860.005995.24217.41169.910.5
Grays CreekMC16078808.5550fu595730.1735.45735.02735.720.005354.84198.42163.560.47
Grays CreekMC16078808.5525fu528730.1735.34734.91735.590.005154.64180.31157.270.46
Grays CreekMC16078808.5510fu438730.1735.16734.41735.390.004974.38152.46145.770.45
Grays CreekMC16078808.555fu358730.1734.97733.68735.190.004824.13125.69134.560.43
Grays CreekMC16078808.552fu267730.1734.65733.2734.860.004843.8486.59105.790.43
Grays CreekMC16078790Culvert
Grays CreekMC16078770.73100fu694729.77735.36733.66735.40.000642.36606.51294.530.19
Grays CreekMC16078770.7350fu595729.77735.13733.36735.170.000642.28539.26289.330.19
Grays CreekMC16078770.7325fu528729.77734.92733.2734.960.000672.27480.33284.50.19
Grays CreekMC16078770.7310fu438729.77734.62732.81734.660.000742.27394.68277.340.2
Grays CreekMC16078770.735fu358729.77734.34732.51734.390.000792.24318.46270.80.2
Grays CreekMC16078770.732fu267729.77733.97732.14734.010.000772.06222.91169.60.19
Grays CreekMC16078713.4100fu994729.73734.12735.030.016069.2186.93127.540.89
Grays CreekMC16078713.450fu854729.73733.91734.80.016638.94160.17116.870.89
D- 14
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16078713.425fu757729.73733.8734.620.015618.46147.64112.110.86
Grays CreekMC16078713.410fu629729.73733.66733.66734.350.013517.63133.01106.290.79
Grays CreekMC16078713.45fu514729.73733.45733.45734.080.013187.16111.2296.970.77
Grays CreekMC16078713.42fu382729.73733.07733.07733.70.014766.8478.2477.510.8
Grays CreekMC16078679.2100fu994727.91734.28733.3734.480.003174.64346.02174.740.39
Grays CreekMC16078679.250fu854727.91734.06733.14734.250.003074.41308.96166.840.38
Grays CreekMC16078679.225fu757727.91733.93733.01734.110.002854.16288.49162.860.36
Grays CreekMC16078679.210fu629727.91733.61732.75733.80.003194.17226.3149.330.38
Grays CreekMC16078679.25fu514727.91733.43732.5733.590.002773.76204.94141.580.35
Grays CreekMC16078679.22fu382727.91733.15731.4733.280.002413.32171.04129.570.32
Grays CreekMC16078640Culvert
Grays CreekMC16078606.93100fu994727732.58732.58733.530.008758.34198.69161.840.69
Grays CreekMC16078606.9350fu854727732.32732.32733.240.008828.05161.32153.220.68
Grays CreekMC16078606.9325fu757727731.38731.38733.210.019910.8469.845.191
Grays CreekMC16078606.9310fu629727730.95730.95732.570.0207210.1961.7138.341
Grays CreekMC16078606.935fu514727730.64730.53731.960.019359.2155.833.340.95
Grays CreekMC16078606.932fu382727730.32730.03731.240.015777.6949.6528.810.84
Grays CreekMC16078413.8100fu994725.49729.3729.07729.850.009786.4194.99144.90.68
Grays CreekMC16078413.850fu854725.49729.14728.83729.640.009526.07172.55129.740.66
Grays CreekMC16078413.825fu757725.49728.99728.68729.470.009675.88154.2115.880.66
Grays CreekMC16078413.810fu629725.49728.75728.42729.210.010175.64129.0198.510.66
Grays CreekMC16078413.85fu514725.49728.57728.11728.970.009545.16111.9488.310.63
Grays CreekMC16078413.82fu382725.49728.26727.81728.590.009794.6886.9770.780.63
Grays CreekMC16078077.38100fu994721.33725.94725.94726.490.011167.72206.35152.30.73
Grays CreekMC16078077.3850fu854721.33725.81725.81726.330.011037.48185.42149.820.72
Grays CreekMC16078077.3825fu757721.33725.72725.72726.210.010447.15172.9148.330.7
Grays CreekMC16078077.3810fu629721.33725.62725.62726.050.009226.57157.22146.430.65
Grays CreekMC16078077.385fu514721.33725.45725.45725.880.009246.35133.26143.480.65
Grays CreekMC16078077.382fu382721.33725.27725.27725.650.00815.7108.03140.310.6
Grays CreekMC16077715.85100fu994718.42723.11723.390.004525.44262.04149.950.49
Grays CreekMC16077715.8550fu854718.42722.88723.150.004725.34228.63138.590.49
Grays CreekMC16077715.8525fu757718.42722.7722.970.004895.26205.14130.010.5
Grays CreekMC16077715.8510fu629718.42722.45722.710.00525.15173.25117.350.5
Grays CreekMC16077715.855fu514718.42722.17721.71722.430.005685.08142.83103.860.52
Grays CreekMC16077715.852fu382718.42721.79721.43722.060.006655.01106.4187.130.55
Grays CreekMC16077310.6100fu994714.69720.22720.06720.980.008628.22188.7795.30.68
Grays CreekMC16077310.650fu854714.69720.01720.710.008287.8168.8791.130.66
Grays CreekMC16077310.625fu757714.69719.84720.510.008037.48154.3586.130.65
Grays CreekMC16077310.610fu629714.69719.55720.170.007937.07130.176.910.64
Grays CreekMC16077310.65fu514714.69719.26719.820.007566.56109.568.10.61
Grays CreekMC16077310.62fu382714.69718.88719.340.006895.8185.7256.240.58
Grays CreekMC16076844.09100fu994711.02716.03716.03716.660.010548.44192.91131.170.74
D- 15
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16076844.0950fu854711.02715.85715.85716.470.01068.22170.28123.20.73
Grays CreekMC16076844.0925fu757711.02715.71715.71716.330.010658.04153.81116.580.73
Grays CreekMC16076844.0910fu629711.02715.55715.55716.110.010017.56135.05108.550.7
Grays CreekMC16076844.095fu514711.02715.34715.34715.890.009857.22114.0198.780.69
Grays CreekMC16076844.092fu382711.02715.04715.04715.580.009836.7886.784.410.68
Grays CreekMC16076613.19100fu994709.5714714.180.003714.6331.44187.030.43
Grays CreekMC16076613.1950fu854709.5713.72713.920.004364.73281.06176.70.46
Grays CreekMC16076613.1925fu757709.5713.6713.780.004284.57259.54172.090.45
Grays CreekMC16076613.1910fu629709.5713.45713.610.003924.24234.36166.540.43
Grays CreekMC16076613.195fu514709.5713.21713.380.004274.19195.79157.670.44
Grays CreekMC16076613.192fu382709.5712.93713.10.004464153.44147.310.44
Grays CreekMC16076371.1100fu994707.38712.51713.010.008997.57255.97180.390.67
Grays CreekMC16076371.150fu854707.38712.74711.827130.004525.57299.7192.250.48
Grays CreekMC16076371.125fu757707.38712.53711.88712.810.005055.69259.5181.380.5
Grays CreekMC16076371.110fu629707.38712.15711.76712.520.006676.12195.45162.60.57
Grays CreekMC16076371.15fu514707.38711.88711.51712.220.006635.78155.17122.970.56
Grays CreekMC16076371.12fu382707.38711.5711.19711.850.007095.52112.92101.350.57
Grays CreekMC16076130.57100fu994705.88710.63710.63711.290.010538.24229.92171.910.73
Grays CreekMC16076130.5750fu854705.88709.88709.88711.280.0242210.87120.7286.411.07
Grays CreekMC16076130.5725fu757705.88709.81709.81711.010.0212210.03114.6383.370.99
Grays CreekMC16076130.5710fu629705.88709.81709.81710.640.014668.33114.5883.340.83
Grays CreekMC16076130.575fu514705.88709.58709.58710.330.013917.739774.950.79
Grays CreekMC16076130.572fu382705.88709.3709.920.012286.7977.4164.710.73
Grays CreekMC16075904.4100fu994704.86710.58710.630.00082.77636.23277.080.22
Grays CreekMC16075904.450fu854704.86710.25710.30.000922.84546.99267.250.23
Grays CreekMC16075904.425fu757704.86710710.060.001052.93481.14259.760.24
Grays CreekMC16075904.410fu629704.86709.65709.710.001263.04392.44240.250.26
Grays CreekMC16075904.45fu514704.86709.3709.380.001523.16313.67221.470.28
Grays CreekMC16075904.42fu382704.86708.85708.940.002013.34220.13183.50.32
Grays CreekMC16075627.3100fu1244703708.68709.90.0134811.36190.781.010.88
Grays CreekMC16075627.350fu1068703708.35709.510.013510.88165.4572.040.87
Grays CreekMC16075627.325fu947703708.12709.20.0132410.42149.1765.610.85
Grays CreekMC16075627.310fu785703707.79708.760.012749.73128.6559.020.83
Grays CreekMC16075627.35fu640703707.45708.330.012289.05109.8453.730.8
Grays CreekMC16075627.32fu476703707.09707.780.010417.8291.5748.040.73
Grays CreekMC16075283.24100fu1244699.05704.43705.480.0127710.1204.8199.590.83
Grays CreekMC16075283.2450fu1068699.05704.21704.21705.180.012149.54183.6394.830.8
Grays CreekMC16075283.2425fu947699.05704.02704.02704.950.011959.19166.4990.80.79
Grays CreekMC16075283.2410fu785699.05703.74703.74704.620.011878.74141.484.470.78
Grays CreekMC16075283.245fu640699.05703.44703.44704.270.011838.27117.2376.990.77
Grays CreekMC16075283.242fu476699.05702.94702.94703.790.013447.9882.2261.720.8
Grays CreekMC16074778.13100fu1741692.04704.987050.000152.011672.7335.970.1
Grays CreekMC16074778.1350fu1494692.04704.45704.470.000141.911501.23310.980.1
D- 16
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16074778.1325fu1324692.04703.35703.370.000212.151182.56275.450.12
Grays CreekMC16074778.1310fu1098692.04701.99702.030.000352.54835.01235.280.15
Grays CreekMC16074778.135fu894692.04700.68700.750.000693.23550.13200.440.21
Grays CreekMC16074778.132fu664692.04699.05699.250.002214.9264.01142.170.35
Grays CreekMC16074631.73100fu1741691.71704.69697.69704.90.000583.92491.64472.770.2
Grays CreekMC16074631.7350fu1494691.71704.21697.27704.390.00053.53468.79447.010.19
Grays CreekMC16074631.7325fu1324691.71703.11696.98703.280.000573.52415.89382.750.2
Grays CreekMC16074631.7310fu1098691.71701.76696.54701.930.000673.45350.96308.030.21
Grays CreekMC16074631.735fu894691.71700.45696.07700.620.000813.41288.28232.170.22
Grays CreekMC16074631.732fu664691.71698.85695.48699.020.001123.38211.52160.820.25
Grays CreekMC16074500Culvert
Grays CreekMC16074273.8100fu1741688.59694.29693.21694.910.004596.91281.81332.50.52
Grays CreekMC16074273.850fu1494688.59694.08692.97694.60.004036.31266.25327.310.48
Grays CreekMC16074273.825fu1324688.59694.02692.8694.440.003355.7261.36325.670.44
Grays CreekMC16074273.810fu1098688.59693.92692.52694.230.002514.88254.07271.710.38
Grays CreekMC16074273.85fu894688.59694.6692.06694.730.000953.25305.19340.320.24
Grays CreekMC16074273.82fu664688.59693.48691.6693.630.00143.44220.64108.510.28
Grays CreekMC16074190.56100fu1741686.64694.18694.470.003396.84695.67373.650.46
Grays CreekMC16074190.5650fu1494686.64693.87694.240.004037.23581.79366.210.5
Grays CreekMC16074190.5625fu1324686.64693.55693.55694.090.005448.13466.56358.20.57
Grays CreekMC16074190.5610fu1098686.64693.4693.4693.910.004897.59413.64354.480.54
Grays CreekMC16074190.565fu894686.64691.88691.88693.960.0195612.52103.2337.571.03
Grays CreekMC16074190.562fu664686.64691.38691.38692.940.0167210.7285.633.520.94
Grays CreekMC16074084.19100fu2714685.39692.71693.80.006810.1462.86256.140.71
Grays CreekMC16074084.1950fu2294685.39692.33693.50.0072910.04371.92229.330.73
Grays CreekMC16074084.1925fu2016685.39692.31692.31693.240.005768.9367.25227.870.65
Grays CreekMC16074084.1910fu1645685.39691.79692.810.006528.91267.21150.40.68
Grays CreekMC16074084.195fu1315685.39691.21691.21692.330.007598.9190.94112.170.72
Grays CreekMC16074084.192fu923685.39690.52689.69691.480.007467.95128.9666.80.69
Grays CreekMC16073780.83100fu2714682.81690.81690.81691.750.006029.21549.32337.070.66
Grays CreekMC16073780.8350fu2294682.81690.48690.48691.390.00598.78447.93268.730.65
Grays CreekMC16073780.8325fu2016682.81690.29690.29691.160.005678.41398.5260.770.63
Grays CreekMC16073780.8310fu1645682.81689.77689.77690.770.006698.56277.1192.860.68
Grays CreekMC16073780.835fu1315682.81689.97688.39690.490.003446.3317.15210.30.49
Grays CreekMC16073780.832fu923682.81689.02689.630.004566.33161.15110.740.54
Grays CreekMC16073349.8100fu2714680.28688.54688.870.002386.31854.72329.230.43
Grays CreekMC16073349.850fu2294680.28688.03688.430.002916.63690.67316.870.47
Grays CreekMC16073349.825fu2016680.28687.68688.130.003376.85580.73302.30.5
Grays CreekMC16073349.810fu1645680.28687.11687.730.004577.46416.08278.090.57
Grays CreekMC16073349.85fu1315680.28685.79685.79687.680.014811.1125.6638.910.98
Grays CreekMC16073349.82fu923680.28685.21684.95686.510.012529.18103.8735.80.88
Grays CreekMC16072932.29100fu2767676688.05688.250.000884.651105.05302.380.27
D- 17
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16072932.2950fu2336676687.61687.780.00084.28980.2270.180.26
Grays CreekMC16072932.2925fu2051676687.29687.460.000764.08897.23261.320.25
Grays CreekMC16072932.2910fu1672676686.84686.990.000693.75782.93248.590.23
Grays CreekMC16072932.295fu1336676686.05686.210.00083.77594.89223.280.25
Grays CreekMC16072932.292fu935676684.38684.690.001724.62255.9169.810.35
Grays CreekMC16072824.29100fu2767676.68686.5683.35687.310.002817.54586.01345.580.46
Grays CreekMC16072824.2950fu2336676.68686.36682.76686.990.002196.59539.11339.590.4
Grays CreekMC16072824.2925fu2051676.68686.23682.2686.760.001835.96497.07334.140.37
Grays CreekMC16072824.2910fu1672676.68686.01681.53686.420.001415.14397.3324.430.32
Grays CreekMC16072824.295fu1336676.68685.34680.9685.660.001224.51310.7497.870.29
Grays CreekMC16072824.292fu935676.68683.54680.05683.820.001574.23222.744.710.32
Grays CreekMC16072800Culvert
Grays CreekMC16072758.16100fu2767675.97684.32683.28686.430.0096111.65237.44201.620.78
Grays CreekMC16072758.1650fu2336675.97684.06682.66685.680.0077810.22228.5192.90.7
Grays CreekMC16072758.1625fu2051675.97683.81682.21685.160.006839.33219.7647.230.65
Grays CreekMC16072758.1610fu1672675.97683.8681.47684.70.004577.62219.447.160.53
Grays CreekMC16072758.165fu1336675.97683.23680.73683.920.003986.68199.8743.140.49
Grays CreekMC16072758.162fu935675.97682.19679.68682.70.003685.69164.2335.810.46
Grays CreekMC16072609.96100fu2767675.64683.69683.69684.870.0058610.35518.04232.720.68
Grays CreekMC16072609.9650fu2336675.64683.22683.22684.460.0062710.23415.77198.30.7
Grays CreekMC16072609.9625fu2051675.64682.83682.83684.130.0066710.15345.08169.370.71
Grays CreekMC16072609.9610fu1672675.64681.88681.88683.530.0095110.87217.6895.750.83
Grays CreekMC16072609.965fu1336675.64681.31681.13682.810.0096310.15168.775.930.82
Grays CreekMC16072609.962fu935675.64680.66679.94681.740.008188.49126.754.30.73
Grays CreekMC16072186.79100fu2787672.95679680.040.007589.39421.48133.050.74
Grays CreekMC16072186.7950fu2356672.95678.63679.590.007618.94372.25130.440.73
Grays CreekMC16072186.7925fu2070672.95678.37679.270.007568.57338.93128.650.72
Grays CreekMC16072186.7910fu1688672.95677.71677.71678.780.010359.01256.03123.180.82
Grays CreekMC16072186.795fu1347672.95677.28677.28678.310.011248.64204.21114.310.84
Grays CreekMC16072186.792fu942672.95676.73676.64677.610.011587.76146.4494.340.83
Grays CreekMC16071554.73100fu3290667.11675.69676.680.004178.62534.1167.210.57
Grays CreekMC16071554.7350fu2778667.11675.07676.070.00458.42435.51153.940.58
Grays CreekMC16071554.7325fu2437667.11674.62675.620.004778.27368.05145.830.59
Grays CreekMC16071554.7310fu1990667.11674.52675.230.003436.93353.09143.970.5
Grays CreekMC16071554.735fu1573667.11673.59674.290.00416.76247.1369.960.53
Grays CreekMC16071554.732fu1086667.11672.37672.980.005166.29173.4450.220.57
Grays CreekMC16071384.38100fu3293663.78674.42672.93675.820.005889.59392.03176.340.66
Grays CreekMC16071384.3850fu2780663.78674.1672.35675.250.005128.65336.28138.270.61
Grays CreekMC16071384.3825fu2439663.78673.89674.840.00447.84319.3463.230.56
Grays CreekMC16071384.3810fu1989663.78674.1674.690.002626.19336.73140.740.44
Grays CreekMC16071384.385fu1571663.78673.15673.670.002865.79274.3458.20.44
Grays CreekMC16071384.382fu1085663.78671.77672.220.003515.41200.4248.950.47
D- 18
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16071060.92100fu3293662.95672.91672.916740.004910611.66276.460.61
Grays CreekMC16071060.9250fu2780662.95672.59672.59673.640.004669.51526.26263.450.59
Grays CreekMC16071060.9225fu2439662.95672.33672.33673.380.004579.21459.25252.780.58
Grays CreekMC16071060.9210fu1989662.95670.26670.26672.850.0137612.98160.2536.730.96
Grays CreekMC16071060.925fu1571662.95669.41669.4671.690.0150912.17131.7131.430.98
Grays CreekMC16071060.922fu1085662.95668.79668.32670.240.011449.67113.0729.430.83
Grays CreekMC16070701.4100fu3293660.76670.08669.22670.610.00266.91844.02366.410.45
Grays CreekMC16070701.450fu2780660.76669.47667.8670.120.003247.27631.88322.130.5
Grays CreekMC16070701.425fu2439660.76668.98667.68669.750.003897.57486.1274.670.54
Grays CreekMC16070701.410fu1989660.76668.25666.95669.120.004767.7325.17164.830.59
Grays CreekMC16070701.45fu1571660.76667.55668.330.005047.21244.4193.350.59
Grays CreekMC16070701.42fu1085660.76666.58667.230.005556.48170.9759.010.59
Grays CreekMC16070237.59100fu3293657.62665.35665.35668.070.0141313.27251.0149.411
Grays CreekMC16070237.5950fu2780657.62664.76664.76667.20.0146512.54222.7447.610.99
Grays CreekMC16070237.5925fu2439657.62664.51664.34666.60.0134411.6210.8646.830.94
Grays CreekMC16070237.5910fu1989657.62664.17663.73665.790.0114610.19195.2945.80.86
Grays CreekMC16070237.595fu1571657.62663.56664.920.011289.36167.7843.370.84
Grays CreekMC16070237.592fu1085657.62662.69663.740.01058.23131.8539.370.79
Grays CreekMC16069865.85100fu3293655.26663.54664.470.004238.43609.77294.480.57
Grays CreekMC16069865.8550fu2780655.26663.26664.090.00387.76530.48275.120.54
Grays CreekMC16069865.8525fu2439655.26662.85663.710.004087.7424.54233.470.55
Grays CreekMC16069865.8510fu1989655.26662.15663.010.004577.51292128.890.57
Grays CreekMC16069865.855fu1571655.26661.45662.180.004616.87238.6366.760.56
Grays CreekMC16069865.852fu1085655.26660.51661.070.004766181.653.720.55
Grays CreekMC16069370.09100fu3397650.79660.03660.03661.730.00711418.74174.90.73
Grays CreekMC16069370.0950fu2859650.79659.03659.03661.10.0096911.69278.28105.440.84
Grays CreekMC16069370.0925fu2497650.79658.5657.95660.510.0104611.42230.8474.170.86
Grays CreekMC16069370.0910fu2024650.79657.8657.35659.570.0109210.67192.0544.480.86
Grays CreekMC16069370.095fu1598650.79657.05656.69658.610.0129.99160.140.780.87
Grays CreekMC16069370.092fu1099650.79656.02655.7657.310.013039.13120.3436.140.88
Grays CreekMC16068575.35100fu3397645.6655.85656.820.003178.26541.57149.240.51
Grays CreekMC16068575.3550fu2859645.6654.83655.870.003878.36405.45117.450.55
Grays CreekMC16068575.3525fu2497645.6654.19655.210.00428.18337.1797.680.56
Grays CreekMC16068575.3510fu2024645.6653.52654.370.003997.42289.3363.080.54
Grays CreekMC16068575.355fu1598645.6652.94653.60.003566.53253.8658.740.5
Grays CreekMC16068575.352fu1099645.6652.01652.480.003245.48202.4751.760.46
Grays CreekMC16068144.13100fu3397642.72655.82655.930.000853.31743.46493.940.18
Grays CreekMC16068144.1350fu2859642.72654.58654.720.001263.691216.6352.670.22
Grays CreekMC16068144.1325fu2497642.72653.73653.90.001613.89955.73273.750.24
Grays CreekMC16068144.1310fu2024642.72652.816530.001993.97723.92228.520.27
Grays CreekMC16068144.135fu1598642.72652.17652.340.001973.71587.39197.080.26
Grays CreekMC16068144.132fu1099642.72651.11651.270.002123.4405.07148.920.26
Grays CreekMC16068029.68100fu3397642.02655.77651.11655.860.000333.262322.43633.360.17
D- 19
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16068029.6850fu2859642.02654.51650.14654.630.000483.611621.1477.730.2
Grays CreekMC16068029.6825fu2497642.02653.63649.31653.780.000633.871242.28398.10.23
Grays CreekMC16068029.6810fu2024642.02652.67648.6652.860.000814.06887.58338.490.25
Grays CreekMC16068029.685fu1598642.02652647.96652.20.000833.88676.52297.40.25
Grays CreekMC16068029.682fu1099642.02650.93647.13651.110.000873.58410.1198.840.25
Grays CreekMC16068020Bridge
Grays CreekMC16068005.73100fu3397642.02655.65651.11655.750.000363.372269.54646.590.18
Grays CreekMC16068005.7350fu2859642.02654.26650.15654.40.000563.821507.35454.650.22
Grays CreekMC16068005.7325fu2497642.02653.26649.3653.450.000814.261098.78375.130.26
Grays CreekMC16068005.7310fu2024642.02651.95648.63652.270.001384.99662.29293.070.33
Grays CreekMC16068005.735fu1598642.02651.02647.98651.390.001725.08428.06206.980.36
Grays CreekMC16068005.732fu1099642.02649.79647.14650.140.001974.7245.2890.770.37
Grays CreekMC16067929.65100fu4140642.31655.55655.70.000534.061661.65329.680.22
Grays CreekMC16067929.6550fu3473642.31654.12654.330.000834.631223.32296.380.27
Grays CreekMC16067929.6525fu3019642.31653.06653.350.001275.28924.75263.40.32
Grays CreekMC16067929.6510fu2431642.31651.55652.070.002536.52565.99213.680.44
Grays CreekMC16067929.655fu1909642.31649.99650.970.005718.23283.92130.990.63
Grays CreekMC16067929.652fu1316642.31648.46649.60.009798.56155.0847.590.78
Grays CreekMC16067835.28100fu4140642.63655.53655.650.000323.371843.27338.680.17
Grays CreekMC16067835.2850fu3473642.63654.11654.250.000433.591409.71277.790.2
Grays CreekMC16067835.2825fu3019642.63653.08653.230.000523.691164.98219.650.21
Grays CreekMC16067835.2810fu2431642.63651.67651.850.000733.92867.8199.720.25
Grays CreekMC16067835.285fu1909642.63650.33650.550.001054.13617.33173.160.29
Grays CreekMC16067835.282fu1316642.63648.75649.020.001664.31371.39136.90.34
Grays CreekMC16067730.39100fu4140642.67655.4647.23655.590.000363.521176.67341.140.18
Grays CreekMC16067730.3950fu3473642.67654.02646.74654.20.000393.351036.52235.510.19
Grays CreekMC16067730.3925fu3019642.67653.02646.41653.180.000423.23934.06159.080.19
Grays CreekMC16067730.3910fu2431642.67651.63645.94651.770.000473.07792.18127.260.19
Grays CreekMC16067730.395fu1909642.67650.29645.47650.420.000542.91656.11116.090.2
Grays CreekMC16067730.392fu1316642.67648.73644.91648.840.000572.63500.5897.060.2
Grays CreekMC16067654Culvert
Grays CreekMC16067573.81100fu4140642.38649.48647.51650.490.004078.15533.89249.230.57
Grays CreekMC16067573.8150fu3473642.38649.07647.04649.890.003587.32497.64239.170.52
Grays CreekMC16067573.8125fu3019642.38648.75646.69649.440.003256.73469.73210.910.5
Grays CreekMC16067573.8110fu2431642.38648.35646.19648.870.00275.84434.52194.70.45
Grays CreekMC16067573.815fu1909642.38647.92645.71648.30.002225.01396.45158.910.4
Grays CreekMC16067573.812fu1316642.38647.24645.07647.490.001744.02338.22143.830.34
Grays CreekMC16067347.61100fu4140641.77648.61649.380.004737.96782.27256.490.59
Grays CreekMC16067347.6150fu3473641.77648.2648.910.004657.51681.23246.520.58
Grays CreekMC16067347.6125fu3019641.77647.89648.560.004637.19605.72239.10.58
Grays CreekMC16067347.6110fu2431641.77647.44648.060.004636.74500.79229.280.57
Grays CreekMC16067347.615fu1909641.77646.99647.550.00466.25400.05215.920.55
D- 20
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16067347.612fu1316641.77646.38646.830.004455.49274.13190.790.53
Grays CreekMC16066835.01100fu6345639647.95648.210.001625.52435.87614.370.36
Grays CreekMC16066835.0150fu5349639647.55647.780.001545.162190.88601.970.35
Grays CreekMC16066835.0125fu4638639647.25647.470.001464.872014.31593.190.34
Grays CreekMC16066835.0110fu3729639646.83647.020.001344.461765.5580.590.32
Grays CreekMC16066835.015fu2930639646.42646.580.001194.011530.18568.420.3
Grays CreekMC16066835.012fu2019639645.886460.000953.351231.87535.160.26
Grays CreekMC16066070.44100fu6345637.41647.24647.380.000693.532588.77499.580.24
Grays CreekMC16066070.4450fu5349637.41646.93647.040.000593.162435.93487.850.22
Grays CreekMC16066070.4425fu4638637.41646.72646.810.00052.852331.79479.690.2
Grays CreekMC16066070.4410fu3729637.41646.4646.470.000392.442180.33467.580.17
Grays CreekMC16066070.445fu2930637.41646.09646.140.000292.042037.46455.850.15
Grays CreekMC16066070.442fu2019637.41645.67645.70.000191.551848.01447.350.12
Grays CreekMC16065574.57100fu6345636.38646.96647.060.000623.983622.43691.260.23
Grays CreekMC16065574.5750fu5349636.38646.69646.780.000513.553440.94684.440.21
Grays CreekMC16065574.5725fu4638636.38646.52646.580.000423.23319.33679.830.19
Grays CreekMC16065574.5710fu3729636.38646.24646.290.000322.733133.5672.720.16
Grays CreekMC16065574.575fu2930636.38645.97646.010.000242.282953.2666.160.14
Grays CreekMC16065574.572fu2019636.38645.6645.620.000141.742702.61662.10.11
Grays CreekMC16065197.43100fu6397635.71646.92646.950.000121.414717.5795.350.1
Grays CreekMC16065197.4350fu5389635.71646.66646.699.9E-051.244513.96788.50.09
Grays CreekMC16065197.4325fu4671635.71646.49646.518.2E-051.14377.97783.880.08
Grays CreekMC16065197.4310fu3754635.71646.22646.246.2E-050.934168.37776.720.07
Grays CreekMC16065197.435fu2949635.71645.96645.974.5E-050.773964.11770.190.06
Grays CreekMC16065197.432fu2032635.71645.59645.592.7E-050.573678.78764.820.04
Grays CreekMC16064942.8100fu6397635.07646.92642.94646.940.000020.867360.68779.640.04
Grays CreekMC16064942.850fu5389635.07646.67642.11646.681.6E-050.757160.74772.50.04
Grays CreekMC16064942.825fu4671635.07646.49641.46646.51.2E-050.667027.2767.70.03
Grays CreekMC16064942.810fu3754635.07646.22640.6646.239E-060.556821.61760.240.03
Grays CreekMC16064942.85fu2949635.07645.96639.77645.966E-060.446621.42753.390.02
Grays CreekMC16064942.82fu2032635.07645.59638.76645.593E-060.326342.16747.480.02
Grays CreekMC16064909Culvert
Grays CreekMC16064871.21100fu6397635.14644.15642.17644.176E-061.095931.65790.050.07
Grays CreekMC16064871.2150fu5389635.14644.15641.41644.164E-060.925929.34790.010.06
Grays CreekMC16064871.2125fu4671635.14644.15640.85644.163E-060.85927.94789.990.05
Grays CreekMC16064871.2110fu3754635.14644.15640.07644.152E-060.645926.45789.970.04
Grays CreekMC16064871.215fu2949635.14644.14639.33644.151E-060.55925.39789.950.03
Grays CreekMC16064871.212fu2032635.14644.14638.42644.151E-060.355924.52789.930.02
Grays CreekMC16064704.33100fu6397635644.14638.4644.171.2E-051.275043782.820.09
Grays CreekMC16064704.3350fu5389635644.14638.17644.168E-061.075043782.820.07
Grays CreekMC16064704.3325fu4671635644.14637.98644.166E-060.935043782.820.06
Grays CreekMC16064704.3310fu3754635644.14637.73644.154E-060.755043782.820.05
D- 21
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
Grays CreekMC16064704.335fu2949635644.14637.48644.152E-060.595043782.820.04
Grays CreekMC16064704.332fu2032635644.14637.14644.141E-060.45043782.820.03
GC_Trib80RCH260 11204.15100fu562681.95685.63685.63686.10.015247.42148.36156.650.82
GC_Trib80RCH260 11204.1550fu438681.95685.46685.46685.890.014236.84122.49141.490.78
GC_Trib80RCH260 11204.1525fu407681.95685.41685.41685.830.013976.69115.47136.850.77
GC_Trib80RCH260 11204.1510fu354681.95685.31685.31685.710.013676.43102.49127.820.76
GC_Trib80RCH260 11204.155fu291681.95685.17685.17685.560.013516.1285.53114.970.74
GC_Trib80RCH260 11204.152fu206681.95684.95684.95685.310.012765.5362.3994.660.71
GC_Trib80RCH260 10806.1100fu562675.73680.03680.03680.470.010756.41155.82167.630.69
GC_Trib80RCH260 10806.150fu438675.73679.79679.79680.250.011566.22117.07143.660.71
GC_Trib80RCH260 10806.125fu407675.73679.71679.71680.180.012076.22105.81134.730.72
GC_Trib80RCH260 10806.110fu354675.73679.58679.58680.050.012286.0589.91120.980.72
GC_Trib80RCH260 10806.15fu291675.73679.39679.39679.870.013295.9268.599.520.73
GC_Trib80RCH260 10806.12fu206675.73679.01678.76679.520.016675.7738.6357.480.79
GC_Trib80RCH260 10510.7100fu638670674.22674.930.015516.7495.4549.280.78
GC_Trib80RCH260 10510.750fu551670674.1674.690.013736.1589.6944.310.73
GC_Trib80RCH260 10510.725fu481670673.94674.460.01315.8182.7540.520.72
GC_Trib80RCH260 10510.710fu419670673.75674.230.012655.5675.338.720.7
GC_Trib80RCH260 10510.75fu342670673.39673.860.013795.5162.0835.310.73
GC_Trib80RCH260 10510.72fu238670672.56672.56673.240.026826.636.0627.381.01
GC_Trib80RCH260 10313.14100fu638666.35674.33670.41674.370.000412.13551.32231.020.15
GC_Trib80RCH260 10313.1450fu551666.35674.18670.1674.210.000351.96516.79228.220.14
GC_Trib80RCH260 10313.1425fu481666.35673.99669.86674.030.000331.86475.35224.610.13
GC_Trib80RCH260 10313.1410fu419666.35673.8669.62673.830.000311.76432214.620.13
GC_Trib80RCH260 10313.145fu342666.35673.43669.27673.460.00031.68357.45196.240.12
GC_Trib80RCH260 10313.142fu238666.35671.91668.71672.010.000932.5394.3779.180.21
GC_Trib80RCH260 10250Culvert
GC_Trib80RCH260 10182.05100fu638662.55669.48667.67670.630.012298.6877.1737.320.6
GC_Trib80RCH260 10182.0550fu551662.55669.01667.19670.030.0128.1570.1730.580.59
GC_Trib80RCH260 10182.0525fu481662.55668.68666.82669.560.011147.5665.3415.550.56
GC_Trib80RCH260 10182.0510fu419662.55668.27666.46669.060.010937.1359.4413.720.55
GC_Trib80RCH260 10182.055fu342662.55667.92665.97668.520.009186.2454.9212.130.5
GC_Trib80RCH260 10182.052fu238662.55667.15665.24667.560.007185.1446.3410.930.44
GC_Trib80RCH260 9900.977100fu638661.46666.05665.65666.890.013347.3789.5959.070.78
GC_Trib80RCH260 9900.97750fu551661.46665.97665.42666.630.010966.5586.137.120.7
GC_Trib80RCH260 9900.97725fu481661.46665.79665.22666.380.010486.1279.7335.760.68
GC_Trib80RCH260 9900.97710fu419661.46665.76665.02666.210.008395.4278.3335.450.61
GC_Trib80RCH260 9900.9775fu342661.46665.4664.74665.810.009425.1866.1732.670.63
GC_Trib80RCH260 9900.9772fu238661.46664.98665.290.008784.4953.0329.470.59
GC_Trib80RCH260 9686.862100fu638659.37662.95662.95663.740.016857.94125.9988.910.79
GC_Trib80RCH260 9686.86250fu551659.37662.61662.61663.50.020748.1898.32740.86
GC_Trib80RCH260 9686.86225fu481659.37662.4662.4663.270.021557.9484.0164.860.86
D- 22
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib80RCH260 9686.86210fu419659.37661.93661.936630.033278.6858.9938.391.04
GC_Trib80RCH260 9686.8625fu342659.37661.82661.82662.630.026777.5354.8637.210.93
GC_Trib80RCH260 9686.8622fu238659.37661.39661.39662.080.030546.8939.6232.50.96
GC_Trib80RCH260 9475.427100fu638653.66658.72658.726600.011299.7104.4358.780.84
GC_Trib80RCH260 9475.42750fu551653.66659.16659.830.005497.23132.4670.690.59
GC_Trib80RCH260 9475.42725fu481653.66658.59659.390.007337.6596.9455.160.67
GC_Trib80RCH260 9475.42710fu419653.66658.69659.250.005036.44102.5857.910.56
GC_Trib80RCH260 9475.4275fu342653.66658.09658.680.006256.4772.7940.330.61
GC_Trib80RCH260 9475.4272fu238653.66657.27657.840.008176.1945.4727.810.66
GC_Trib80RCH260 9141.088100fu1127650.8656.47656.47657.070.006168.02261.87193.460.65
GC_Trib80RCH260 9141.08850fu954650.8655.69656.850.0125710.17147.4883.190.9
GC_Trib80RCH260 9141.08825fu833650.8655.71655.71656.580.009378.8148.9183.690.78
GC_Trib80RCH260 9141.08810fu691650.8655.18656.310.013489.59108.3868.070.91
GC_Trib80RCH260 9141.0885fu557650.8655.07655.07655.910.010168.15101.5365.060.79
GC_Trib80RCH260 9141.0882fu392650.8654.86655.390.006896.4288.2158.760.64
GC_Trib80RCH260 8879.055100fu1740647.8653.31653.31654.350.011210.43255.08112.190.87
GC_Trib80RCH260 8879.05550fu1484647.8653.12653.12654.040.010519.81233.33109.920.84
GC_Trib80RCH260 8879.05525fu1301647.8652.95652.95653.810.010189.4215107.970.82
GC_Trib80RCH260 8879.05510fu1074647.8652.72652.72653.510.009668.81190.94105.350.79
GC_Trib80RCH260 8879.0555fu865647.8652.49652.49653.190.009068.19166.73102.640.76
GC_Trib80RCH260 8879.0552fu615647.8651.77651.77652.720.014368.89100.7767.260.92
GC_Trib80RCH260 8702.354100fu1740646.1652.12650.83652.280.001254.08714.19336.290.3
GC_Trib80RCH260 8702.35450fu1484646.1651.96650.6652.10.00113.74660.36322.070.28
GC_Trib80RCH260 8702.35425fu1301646.1651.83650.43651.950.000983.48620.213120.26
GC_Trib80RCH260 8702.35410fu1074646.1651.67649.58651.770.000813.1570.64299.10.24
GC_Trib80RCH260 8702.3545fu865646.1651.64649651.70.000552.54559.81296.20.2
GC_Trib80RCH260 8702.3542fu615646.1651.25648.45651.30.000452.19451.81266.690.18
GC_Trib80RCH260 8675Bridge
GC_Trib80RCH260 8656.687100fu1740646.09650.7650.7651.280.005197.01381.73299.210.6
GC_Trib80RCH260 8656.68750fu1484646.09650.54650.54651.10.004986.7334.09292.680.58
GC_Trib80RCH260 8656.68725fu1301646.09649.58649.58650.910.013939.41149.6662.790.93
GC_Trib80RCH260 8656.68710fu1074646.09649.26649.21650.430.013878.75130.2658.510.91
GC_Trib80RCH260 8656.6875fu865646.09649.14648.82649.970.010567.41122.9556.820.79
GC_Trib80RCH260 8656.6872fu615646.09648.6648.29649.280.011346.6494.4849.670.79
GC_Trib80RCH260 8303.973100fu1740639.27646.02646.02647.460.0086810.8225.1489.710.8
GC_Trib80RCH260 8303.97350fu1484639.27645.74645.74647.030.0081510.11200.882.190.77
GC_Trib80RCH260 8303.97325fu1301639.27645.35645.35646.690.0089810.09170.5771.760.8
GC_Trib80RCH260 8303.97310fu1074639.27644.76644.76646.170.010610.07132.9756.140.85
GC_Trib80RCH260 8303.9735fu865639.27643.94643.94645.470.0146610.3195.8935.550.97
GC_Trib80RCH260 8303.9732fu615639.27643.31643.31644.550.015169.274.432.470.95
GC_Trib80RCH260 7967.712100fu1740634.92641.61642.720.007538.75253.5995.170.71
GC_Trib80RCH260 7967.71250fu1484634.92641.22642.250.007628.31217.6589.970.71
D- 23
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib80RCH260 7967.71225fu1301634.92640.98641.90.00737.82196.2386.730.68
GC_Trib80RCH260 7967.71210fu1074634.92640.63641.420.00697.17167.2982.140.66
GC_Trib80RCH260 7967.7125fu865634.92640.27640.920.006526.5137.9577.210.63
GC_Trib80RCH260 7967.7122fu615634.92639.59640.110.006245.77106.6837.110.6
GC_Trib80RCH260 7635.628100fu1823631.98639.35640.350.006579.2384.46157.760.64
GC_Trib80RCH260 7635.62850fu1553631.98638.79639.790.007099.01305.6123.550.66
GC_Trib80RCH260 7635.62825fu1363631.98638.27639.330.008099.06247.23102.190.7
GC_Trib80RCH260 7635.62810fu1122631.98637.58638.690.009649.05184.9680.590.75
GC_Trib80RCH260 7635.6285fu901631.98636.92638.040.011458.93136.6264.180.8
GC_Trib80RCH260 7635.6282fu637631.98636.08637.10.013558.3791.4543.570.84
GC_Trib80RCH260 7317.787100fu1823628.51635.38635.38637.610.0108612.82212.3865.480.91
GC_Trib80RCH260 7317.78750fu1553628.51634.83634.63636.90.0112512.24179.0655.230.92
GC_Trib80RCH260 7317.78725fu1363628.51634.54634.09636.360.0104911.41163.9949.920.88
GC_Trib80RCH260 7317.78710fu1122628.51634.11633.7635.60.0096310.32143.7143.260.83
GC_Trib80RCH260 7317.7875fu901628.51633.65633.09634.870.008829.25125.0539.730.78
GC_Trib80RCH260 7317.7872fu637628.51633.03632.37633.90.007657.77101.2536.310.71
GC_Trib80RCH260 7021.846100fu1823626.4631.58631.58633.280.0162810.46174.2351.41
GC_Trib80RCH260 7021.84650fu1553626.4631.19631.19632.760.0166610.06154.3849.251
GC_Trib80RCH260 7021.84625fu1363626.4630.88630.88632.360.017179.78139.4147.551.01
GC_Trib80RCH260 7021.84610fu1122626.4630.48630.48631.820.017459.27121.0545.391
GC_Trib80RCH260 7021.8465fu901626.4630.07630.07631.260.018068.76102.8243.141
GC_Trib80RCH260 7021.8462fu637626.4629.51629.51630.510.01909879.6340.11
GC_Trib80RCH260 6795.793100fu1823622.53629.23630.310.007328.34218.4948.380.69
GC_Trib80RCH260 6795.79350fu1553622.53629.28630.050.005157.03220.9148.580.58
GC_Trib80RCH260 6795.79325fu1363622.53628.84629.560.005246.81200.0246.830.58
GC_Trib80RCH260 6795.79310fu1122622.53628.31628.940.005146.4175.4244.670.57
GC_Trib80RCH260 6795.7935fu901622.53627.78628.320.004945.91152.4642.570.55
GC_Trib80RCH260 6795.7932fu637622.53627.03627.460.00475.23121.8139.580.53
GC_Trib80RCH260 6532.54100fu1823620.3626.87626.87628.220.00849.75238.31110.80.77
GC_Trib80RCH260 6532.5450fu1553620.3625.83625.83627.760.0152811.25149.9449.631
GC_Trib80RCH260 6532.5425fu1363620.3625.58625.58627.30.0147710.59137.847.650.97
GC_Trib80RCH260 6532.5410fu1122620.3625.14625.14626.670.015479.96117.6844.160.97
GC_Trib80RCH260 6532.545fu901620.3624.67624.67626.040.0179.497.7840.411
GC_Trib80RCH260 6532.542fu637620.3624.1624.1625.20.018588.4175.8335.821
GC_Trib80RCH260 6260.457100fu1823617.9623.52624.520.007118.91291.85140.540.71
GC_Trib80RCH260 6260.45750fu1553617.9623.29624.20.006678.36260.47135.140.68
GC_Trib80RCH260 6260.45725fu1363617.9623.1623.950.006427.97234.9130.580.67
GC_Trib80RCH260 6260.45710fu1122617.9622.8623.590.006197.47196.83121.30.65
GC_Trib80RCH260 6260.4575fu901617.9622.47623.170.00586.85159.99104.940.62
GC_Trib80RCH260 6260.4572fu637617.9621.88622.410.005365.89117.6545.130.58
GC_Trib80RCH260 5948.557100fu1823615.57622.31622.640.004115.2442.73201.660.42
GC_Trib80RCH260 5948.55750fu1553615.57621.89622.260.004865.35361.6182.980.45
GC_Trib80RCH260 5948.55725fu1363615.57621.59621.980.005315.36309.76166.040.47
D- 24
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib80RCH260 5948.55710fu1122615.57621.18621.580.00595.31246.1140.260.49
GC_Trib80RCH260 5948.5575fu901615.57620.59621.040.007525.42176.6697.410.55
GC_Trib80RCH260 5948.5572fu637615.57619.81620.230.009135.23121.8252.180.6
GC_Trib80RCH260 5669.464100fu2124611.87619.21619.21620.820.0094712.28369.65144.210.85
GC_Trib80RCH260 5669.46450fu1778611.87618.71618.71620.260.0096711.76302.67124.510.85
GC_Trib80RCH260 5669.46425fu1547611.87618.27618.27619.830.0102911.54252.25107.850.87
GC_Trib80RCH260 5669.46410fu1260611.87617.68619.230.0112311.17194.3789.360.89
GC_Trib80RCH260 5669.4645fu1022611.87617.44618.650.009189.77173.6383.410.8
GC_Trib80RCH260 5669.4642fu718611.87616.78617.740.008448.47125.3762.50.74
GC_Trib80RCH260 5388.009100fu2124608.98617.76618.270.00297.28550.74203.180.48
GC_Trib80RCH260 5388.00950fu1778608.98617.14617.740.003517.53434.06174.230.52
GC_Trib80RCH260 5388.00925fu1547608.98616.53617.290.00468.08336.83145.780.58
GC_Trib80RCH260 5388.00910fu1260608.98615.72616.70.006428.66233.88110.370.67
GC_Trib80RCH260 5388.0095fu1022608.98614.96616.110.008659.0316181.230.76
GC_Trib80RCH260 5388.0092fu718608.98614.02615.080.010538.47101.7244.390.81
GC_Trib80RCH260 5092.035100fu2124605.94614.47614.47616.690.0099314.33272.1264.490.9
GC_Trib80RCH260 5092.03550fu1778605.94613.66615.910.0111214.11225.2653.960.94
GC_Trib80RCH260 5092.03525fu1547605.94613.49615.340.0093512.72216.1952.920.86
GC_Trib80RCH260 5092.03510fu1260605.94613.14614.60.0077411.18198.0950.790.77
GC_Trib80RCH260 5092.0355fu1022605.94612.68613.870.0068510174.9947.940.72
GC_Trib80RCH260 5092.0352fu718605.94611.89612.770.005838.42139.3343.170.65
GC_Trib80RCH260 4791.773100fu2124604.18611.41611.41612.910.0098810.28262.23129.970.83
GC_Trib80RCH260 4791.77350fu1778604.18610.97610.97612.380.010229.81213.6898.930.83
GC_Trib80RCH260 4791.77325fu1547604.18610.51610.51611.980.012069.88172.5378.550.88
GC_Trib80RCH260 4791.77310fu1260604.18609.85609.85611.350.015429.87131.9349.990.97
GC_Trib80RCH260 4791.7735fu1022604.18609.43609.43610.770.016429.29111.8345.810.98
GC_Trib80RCH260 4791.7732fu718604.18608.87608.79609.910.017288.287.640.190.97
GC_Trib80RCH260 4299.064100fu2124599.85606.96607.750.00448.24409.21159.960.58
GC_Trib80RCH260 4299.06450fu1778599.85606.51607.290.004517.94340.93144.030.58
GC_Trib80RCH260 4299.06425fu1547599.85605.87606.810.005938.42256.72120.590.66
GC_Trib80RCH260 4299.06410fu1260599.85605.37606.270.006238.05201.6599.130.66
GC_Trib80RCH260 4299.0645fu1022599.85604.9605.730.006437.62159.879.020.66
GC_Trib80RCH260 4299.0642fu718599.85604.19604.880.006546.78114.5448.670.64
GC_Trib80RCH260 3852.409100fu2124596.51603.21604.90.0102411.12291.27117.10.85
GC_Trib80RCH260 3852.40950fu1778596.51602.69602.67604.310.010910.71234.57100.140.87
GC_Trib80RCH260 3852.40925fu1547596.51602.86603.970.007188.89252.13105.690.71
GC_Trib80RCH260 3852.40910fu1260596.51602.39603.370.007038.24206.3490.530.69
GC_Trib80RCH260 3852.4095fu1022596.51601.94602.80.006947.62168.6676.660.67
GC_Trib80RCH260 3852.4092fu718596.51601.27601.940.006736.64122.8859.720.64
GC_Trib80RCH260 3488.875100fu2124593.49600.55601.520.007459.57462.86307.890.73
GC_Trib80RCH260 3488.87550fu1778593.49600.48600.48601.230.005788.35440.03305.70.64
GC_Trib80RCH260 3488.87525fu1547593.49599.89601.040.008989.62273.99185.270.79
GC_Trib80RCH260 3488.87510fu1260593.49599.51599.27600.540.008588.89215.36139.480.76
D- 25
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib80RCH260 3488.8755fu1022593.49599.17598.77600.070.008098.16173.16102.440.73
GC_Trib80RCH260 3488.8752fu718593.49598.54598.1599.280.007937.19123.4966.780.7
GC_Trib80RCH260 3013.418100fu2124590.81597.77598.70.005418.7438.41161.380.64
GC_Trib80RCH260 3013.41850fu1778590.81597.35598.20.00538.19372.95150.990.62
GC_Trib80RCH260 3013.41825fu1547590.81596.99597.820.005417.91321.2142.240.62
GC_Trib80RCH260 3013.41810fu1260590.81596.48597.280.005727.58251.76129.580.63
GC_Trib80RCH260 3013.4185fu1022590.81595.98596.760.006217.3189.57115.160.64
GC_Trib80RCH260 3013.4182fu718590.81595.21595.860.006656.55125.9964.730.64
GC_Trib80RCH260 2698.439100fu2124588.94595.8595.48596.910.00599.05301.68128.550.66
GC_Trib80RCH260 2698.43950fu1778588.94595.4594.8596.440.005858.59253.74109.640.65
GC_Trib80RCH260 2698.43925fu1547588.94595.12593.93596.080.005618.12225.3496.710.63
GC_Trib80RCH260 2698.43910fu1260588.94594.68595.530.005427.52187.2575.980.61
GC_Trib80RCH260 2698.4395fu1022588.94594.24594.960.005186.88158.0955.070.59
GC_Trib80RCH260 2698.4392fu718588.94593.52594.050.004865.88125.6441.380.55
GC_Trib80RCH260 2225.607100fu2124584.97591.1591.1592.770.0143810.43208.7368.80.96
GC_Trib80RCH260 2225.60750fu1778584.97590.69590.69592.210.015239.91181.5763.760.97
GC_Trib80RCH260 2225.60725fu1547584.97590.36590.36591.810.016769.66160.7659.621
GC_Trib80RCH260 2225.60710fu1260584.97589.97589.97591.250.017729.07138.8754.921.01
GC_Trib80RCH260 2225.6075fu1022584.97589.54589.54590.740.018348.78116.3949.611.01
GC_Trib80RCH260 2225.6072fu718584.97588.94588.94589.960.018848.1288.4743.331
GC_Trib80RCH260 1801.844100fu2124581.79588.19588.450.001754.69585.97228.650.36
GC_Trib80RCH260 1801.84450fu1778581.79587.91588.140.001644.38522.35218.720.34
GC_Trib80RCH260 1801.84425fu1547581.79587.7587.910.001544.13478.04209.610.33
GC_Trib80RCH260 1801.84410fu1260581.79587.39587.580.001443.81415.17195.950.32
GC_Trib80RCH260 1801.8445fu1022581.79587587.180.001473.63343.14174.910.32
GC_Trib80RCH260 1801.8442fu718581.79586.39586.550.001533.33245.21146.990.31
GC_Trib80RCH260 1427.468100fu2424579.88587.07587.540.004026.73645.25273.990.53
GC_Trib80RCH260 1427.46850fu2060579.88586.8587.250.003996.46570.72270.150.53
GC_Trib80RCH260 1427.46825fu1816579.88586.525870.004396.5495.2266.190.55
GC_Trib80RCH260 1427.46810fu1484579.88586.1586.630.005016.5386.29260.390.57
GC_Trib80RCH260 1427.4685fu1172579.88585.64586.180.005576.31286.51171.180.59
GC_Trib80RCH260 1427.4682fu832579.88585.02584.43585.490.005935.73198.56128.60.59
GC_Trib80RCH260 923.257100fu2424577584.54585.410.005338.32516.64214.210.62
GC_Trib80RCH260 923.25750fu2060577584.04584.970.006058.32410.49207.030.65
GC_Trib80RCH260 923.25725fu1816577583.76584.610.005847.88359.93173.380.63
GC_Trib80RCH260 923.25710fu1484577583.37584.110.00557.23297.33146.690.61
GC_Trib80RCH260 923.2575fu1172577582.96583.580.005116.52240.56128.920.57
GC_Trib80RCH260 923.2572fu832577582.35582.850.004825.73168.31111.530.54
GC_Trib80RCH260 518.491100fu2424574.35582.19583.230.005518.48355.0783.970.6
GC_Trib80RCH260 518.49150fu2060574.35581.45582.470.006328.38294.3977.680.64
GC_Trib80RCH260 518.49125fu1816574.35580.76581.870.007888.62243.3872.160.7
GC_Trib80RCH260 518.49110fu1484574.35579.92581.10.010348.78185.5665.040.79
GC_Trib80RCH260 518.4915fu1172574.35579.14578.96580.340.013618.84138.3855.280.89
D- 26
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib80RCH260 518.4912fu832574.35578.32578.32579.470.016968.697.2245.121
GC_Trib80RCH260 305.682100fu2424570.58578.84578.31581.120.0134212.11200.0934.590.89
GC_Trib80RCH260 305.68250fu2060570.58578.14577.61580.260.0135811.67176.4932.510.88
GC_Trib80RCH260 305.68225fu1816570.58578.13577.15579.780.010610.31176.1732.480.78
GC_Trib80RCH260 305.68210fu1484570.58577.52576.48578.910.009649.45157.0230.690.74
GC_Trib80RCH260 305.6825fu1172570.58576.98575.79578.060.008268.34140.5729.910.68
GC_Trib80RCH260 305.6822fu832570.58576.25574.945770.006726.9911928.720.61
GC_Trib80RCH260 290Bridge
GC_Trib80RCH260 280.618100fu2424571.38578.6577.84580.440.0094710.89222.8946.880.81
GC_Trib80RCH260 280.61850fu2060571.38578.18577.31579.730.008829.99206.244.710.77
GC_Trib80RCH260 280.61825fu1816571.38577.87576.93579.230.008359.36193.9643.240.74
GC_Trib80RCH260 280.61810fu1484571.38577.39576.38578.510.007638.47175.2941.330.7
GC_Trib80RCH260 280.6185fu1172571.38576.86575.75577.750.006997.56154.9339.210.66
GC_Trib80RCH260 280.6182fu832571.38576.12575576.790.006366.54127.2236.450.62
GC_Trib80RCH260 61.304100fu2424571.35577.6576.16578.530.0057.86345.6388.10.6
GC_Trib80RCH260 61.30450fu2060571.35577.12575.68577.960.0057.39304.5485.610.59
GC_Trib80RCH260 61.30425fu1816571.35576.78575.37577.550.0057.05275.7783.840.58
GC_Trib80RCH260 61.30410fu1484571.35576.28574.92576.940.0056.52234.3781.220.57
GC_Trib80RCH260 61.3045fu1172571.35575.75574.47576.30.0055.95196.9855.570.56
GC_Trib80RCH260 61.3042fu832571.35575.01573.91575.440.0055.3156.8552.840.54
GC_Trib50RCH230 2176.204100fu330575.19582.71582.7100.212118.66438.960.01
GC_Trib50RCH230 2176.20450fu279575.19582.65582.6500.182090.2437.640.01
GC_Trib50RCH230 2176.20425fu244575.19582.6582.600.162069.28436.670.01
GC_Trib50RCH230 2176.20410fu207575.19582.55582.5500.132046.73435.620.01
GC_Trib50RCH230 2176.2045fu159575.19582.47582.4700.12013.37434.060.01
GC_Trib50RCH230 2176.2042fu114575.19582.39582.3900.081977.7432.380.01
GC_Trib50RCH230 1953.635100fu330575.06582.71582.711E-060.371256.35612.80.02
GC_Trib50RCH230 1953.63550fu279575.06582.65582.651E-060.321216.86611.430.02
GC_Trib50RCH230 1953.63525fu244575.06582.6582.61E-060.281187.78610.410.02
GC_Trib50RCH230 1953.63510fu207575.06582.55582.5500.241156.44609.320.02
GC_Trib50RCH230 1953.6355fu159575.06582.47582.4700.191109.9607.70.01
GC_Trib50RCH230 1953.6352fu114575.06582.39582.3900.141060.05605.950.01
GC_Trib50RCH230 1888.733100fu330575582.7577.81582.715E-060.91802.08590.320.06
GC_Trib50RCH230 1888.73350fu279575582.64577.53582.654E-060.79765.75588.540.05
GC_Trib50RCH230 1888.73325fu244575582.58577.33582.68E-061.1522.13586.830.07
GC_Trib50RCH230 1888.73310fu207575582.53577.11582.556E-060.95497.12585.480.06
GC_Trib50RCH230 1888.7335fu159575582.46576.79582.474E-060.75459.1583.430.05
GC_Trib50RCH230 1888.7332fu114575582.38576.46582.392E-060.55417.46581.170.04
GC_Trib50RCH230 1800Culvert
GC_Trib50RCH230 1767.415100fu330559.92563.02563.02564.480.025599.734.0338.741
GC_Trib50RCH230 1767.41550fu279559.92562.71562.71564.020.026669.1830.3935.791
D- 27
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib50RCH230 1767.41525fu244559.92562.49562.49563.680.027418.7727.8133.631
GC_Trib50RCH230 1767.41510fu207559.92562.23562.23563.310.028848.3424.8130.991.01
GC_Trib50RCH230 1767.4155fu159559.92561.89561.89562.790.030357.6220.8627.521
GC_Trib50RCH230 1767.4152fu114559.92561.53561.53562.250.032826.8316.6923.821
GC_Trib50RCH230 1705.512100fu330551.2561.91555.045620.000422.3913825.410.14
GC_Trib50RCH230 1705.51250fu279551.2561.7554.69561.760.000332.07134.524.620.13
GC_Trib50RCH230 1705.51225fu244551.2561.49554.43561.540.000281.86131.1623.980.11
GC_Trib50RCH230 1705.51210fu207551.2561.23554.11561.270.000221.6312723.210.1
GC_Trib50RCH230 1705.5125fu159551.2560.82553.71560.850.000161.32120.522.010.08
GC_Trib50RCH230 1705.5122fu114551.2560.29553.24560.310.00011.02112.0320.330.07
GC_Trib50RCH230 1673.774100fu330552.37561.79556.54561.960.002243.33106.0636.490.23
GC_Trib50RCH230 1673.77450fu279552.37561.59556.14561.720.001872.9899.5632.930.21
GC_Trib50RCH230 1673.77425fu244552.37561.39555.84561.510.001662.7493.4129.410.2
GC_Trib50RCH230 1673.77410fu207552.37561.15555.5561.240.001412.4686.7225.080.18
GC_Trib50RCH230 1673.7745fu159552.37560.76555.03560.830.001082.0678.1819.510.16
GC_Trib50RCH230 1673.7742fu114552.37560.25554.52560.290.000761.6369.7713.950.13
GC_Trib50RCH230 1562.319100fu330552.02560.69560.69561.250.025596.3163.8561.080.74
GC_Trib50RCH230 1562.31950fu279552.02560.48560.48561.060.029056.351.6552.620.77
GC_Trib50RCH230 1562.31925fu244552.02560.37560.23560.90.027915.9646.2548.410.75
GC_Trib50RCH230 1562.31910fu207552.02560.25559.8560.710.026045.5140.5943.570.72
GC_Trib50RCH230 1562.3195fu159552.02560.06559.5560.410.022764.7933.427.640.66
GC_Trib50RCH230 1562.3192fu114552.02559.67559.06559.970.023374.425.8917.280.63
GC_Trib50RCH230 1089.789100fu330550.74557.18557.40.00363.8289.6835.610.39
GC_Trib50RCH230 1089.78950fu279550.74556.86557.060.003843.6578.3834.050.4
GC_Trib50RCH230 1089.78925fu244550.74556.62556.810.004033.5170.5933.010.4
GC_Trib50RCH230 1089.78910fu207550.74556.36556.540.004273.3562.2231.350.4
GC_Trib50RCH230 1089.7895fu159550.74556556.150.00473.151.2628.960.41
GC_Trib50RCH230 1089.7892fu114550.74555.54555.670.004712.9239.0523.90.4
GC_Trib50RCH230 880.229100fu330550.1556.06556.480.00545.2172.8543.830.49
GC_Trib50RCH230 880.22950fu279550.1555.76556.110.005264.8463.2326.570.47
GC_Trib50RCH230 880.22925fu244550.1555.53555.850.005234.5957.2325.180.47
GC_Trib50RCH230 880.22910fu207550.1555.27555.550.005154.2950.9123.620.46
GC_Trib50RCH230 880.2295fu159550.1554.89555.120.005073.8542.3821.340.44
GC_Trib50RCH230 880.2292fu114550.1554.45554.630.00523.433.6218.710.43
GC_Trib50RCH230 669.271100fu330549.6554.58555.10.007865.8259.5126.10.58
GC_Trib50RCH230 669.27150fu279549.6554.27554.740.008045.4952.0122.970.58
GC_Trib50RCH230 669.27125fu244549.6554.05554.480.008175.2347.1320.680.58
GC_Trib50RCH230 669.27110fu207549.6553.8554.170.008374.9442.0519.320.57
GC_Trib50RCH230 669.2715fu159549.6553.42553.740.008574.5235.1617.790.57
GC_Trib50RCH230 669.2712fu114549.6552.98553.240.008474.1227.6415.950.55
GC_Trib50RCH230 339.014100fu330547.39552.16551.12552.710.006696.0762.8125.230.56
GC_Trib50RCH230 339.01450fu279547.39551.84550.85552.330.006685.754.9922.940.55
GC_Trib50RCH230 339.01425fu244547.39551.6550.63552.040.006685.4249.6221.80.55
D- 28
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib50RCH230 339.01410fu207547.39551.32550.42551.720.006685.0943.8420.50.54
GC_Trib50RCH230 339.0145fu159547.39550.93550.1551.260.006694.636.1518.630.53
GC_Trib50RCH230 339.0142fu114547.39550.51549.74550.760.006684.0328.7116.630.51
GC_Trib40RCH200 1344.097100fu499599.77603.79603.79604.940.0246810.758238.050.96
GC_Trib40RCH200 1344.09750fu419599.77603.56603.51604.560.022949.9473.236.040.92
GC_Trib40RCH200 1344.09725fu364599.77603.38603.25604.280.021439.367.0334.550.88
GC_Trib40RCH200 1344.09710fu294599.77603.11602.89603.870.019718.4658.0732.010.83
GC_Trib40RCH200 1344.0975fu233599.77602.85602.53603.480.017737.5849.9329.410.78
GC_Trib40RCH200 1344.0972fu166599.77602.47602.06602.960.015676.5139.5825.730.71
GC_Trib40RCH200 1041.211100fu499595.79597.91597.91598.460.017777.1185.4279.090.91
GC_Trib40RCH200 1041.21150fu419595.79597.77597.77598.280.018386.8674.2774.180.91
GC_Trib40RCH200 1041.21125fu364595.79597.66597.66598.140.018796.6566.4970.550.91
GC_Trib40RCH200 1041.21110fu294595.79597.51597.51597.950.019186.3256.5165.610.91
GC_Trib40RCH200 1041.2115fu233595.79597.36597.36597.760.026.0347.0460.540.91
GC_Trib40RCH200 1041.2112fu166595.79597.18597.18597.520.020875.5936.2854.220.91
GC_Trib40RCH200 688.165100fu499588.88591.09591.120.000081.48366.74198.560.18
GC_Trib40RCH200 688.16550fu419588.88591589.56591.036.5E-051.29350.26196.140.16
GC_Trib40RCH200 688.16525fu364588.88590.95589.5590.975.4E-051.16338.84194.440.14
GC_Trib40RCH200 688.16510fu294588.88590.86590.874.1E-050.98321.85191.880.12
GC_Trib40RCH200 688.1655fu233588.88590.78590.790.000030.81306.71189.570.11
GC_Trib40RCH200 688.1652fu166588.88590.66590.661.9E-050.62284.19186.080.08
GC_Trib40RCH200 601.151100fu499581.61591.09585.78591.19.6E-050.81614.29305.530.1
GC_Trib40RCH200 601.15150fu419581.61591.01585.42591.027.7E-050.71588.46304.740.09
GC_Trib40RCH200 601.15125fu364581.61590.95585.16590.956.4E-050.64570.45304.190.08
GC_Trib40RCH200 601.15110fu294581.61590.86584.81590.864.8E-050.54543.51303.360.07
GC_Trib40RCH200 601.1515fu233581.61590.78584.49590.783.5E-050.45519.32302.610.06
GC_Trib40RCH200 601.1512fu166581.61590.66584.06590.662.2E-050.34482.99301.480.05
GC_Trib40RCH200 560Culvert
GC_Trib40RCH200 531.302100fu499581.39585.49585.49585.720.006266.3198.15291.650.57
GC_Trib40RCH200 531.30250fu419581.39585.43585.43585.640.005575.88181.85290.180.53
GC_Trib40RCH200 531.30225fu364581.39585.38585.38585.580.005165.61168.08288.940.51
GC_Trib40RCH200 531.30210fu294581.39585.3585.3585.50.004635.25147.52287.070.48
GC_Trib40RCH200 531.3025fu233581.39585.23585.23585.410.004114.87125.96285.110.45
GC_Trib40RCH200 531.3022fu166581.39584584584.90.02258.6330.7621.820.99
GC_Trib40RCH200 414.976100fu499578582.57583.270.0146.7474.1432.250.77
GC_Trib40RCH200 414.97650fu419578582.32581.83582.940.013746.3166.4230.30.75
GC_Trib40RCH200 414.97625fu364578582.1581.61582.670.013486.0759.9828.570.74
GC_Trib40RCH200 414.97610fu294578581.78581.31582.290.013255.7351.3326.320.72
GC_Trib40RCH200 414.9765fu233578581.46581581.910.013195.3943.1924.150.71
GC_Trib40RCH200 414.9762fu166578581.05580.6581.420.012944.9233.7321.350.69
GC_Trib40RCH200 135.404100fu499574.78579.06578.81579.720.01158.25125.5377.840.76
GC_Trib40RCH200 135.40450fu419574.78578.8578.48579.430.01157.86106.8967.790.75
D- 29
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib40RCH200 135.40425fu364574.78578.6578.24579.190.011527.5593.4961.410.74
GC_Trib40RCH200 135.40410fu294574.78578.3577.95578.840.01157.0676.4652.180.73
GC_Trib40RCH200 135.4045fu233574.78577.98577.69578.470.01156.5461.5642.830.72
GC_Trib40RCH200 135.4042fu166574.78577.6577.35578.010.01155.8846.0837.70.7
GC_Trib30RCH220 9758.439100fu808648.7653.51653.51654.720.016539.09111.0461.420.89
GC_Trib30RCH220 9758.43950fu686648.7653.18653.18654.340.017958.8191.7853.660.91
GC_Trib30RCH220 9758.43925fu601648.7652.94652.94654.040.018888.5379.648.170.92
GC_Trib30RCH220 9758.43910fu487648.7652.61652.56653.590.01978865.0740.650.92
GC_Trib30RCH220 9758.4395fu393648.7652.42652.21653.190.017327.0757.7436.270.85
GC_Trib30RCH220 9758.4392fu280648.7652.06652.630.016586.1146.0127.870.81
GC_Trib30RCH220 9348.171100fu808641.31646.55646.55647.490.011878.74166.91112.20.78
GC_Trib30RCH220 9348.17150fu686641.31646.01646.01647.150.01639.28115.5375.410.89
GC_Trib30RCH220 9348.17125fu601641.31645.9645.9646.880.014528.56106.9771.330.83
GC_Trib30RCH220 9348.17110fu487641.31645.54645.54646.480.015448.1883.3661.240.84
GC_Trib30RCH220 9348.1715fu393641.31645.15645.12646.070.017497.9262.4946.520.87
GC_Trib30RCH220 9348.1712fu280641.31644.7644.61645.470.018357.1344.2435.020.87
GC_Trib30RCH220 8812.644100fu808632.4637.12637.12638.290.016959.85132.0664.870.92
GC_Trib30RCH220 8812.64450fu686632.4636.8636.8637.920.017659.45112.659.390.92
GC_Trib30RCH220 8812.64425fu601632.4636.56636.56637.630.018359.1698.7755.160.93
GC_Trib30RCH220 8812.64410fu487632.4636.28636.22637.20.017698.4283.7750.170.89
GC_Trib30RCH220 8812.6445fu393632.4636.01635.91636.810.01697.771.1745.560.86
GC_Trib30RCH220 8812.6442fu280632.4635.64635.48636.260.015966.7155.140.180.81
GC_Trib30RCH220 8257.756100fu808621.77627.37627.37628.130.010777.62131.9392.810.72
GC_Trib30RCH220 8257.75650fu686621.77627.13627.13627.880.01127.41111.3180.890.72
GC_Trib30RCH220 8257.75625fu601621.77626.89626.89627.680.012497.4493.2468.770.75
GC_Trib30RCH220 8257.75610fu487621.77626.38626.38627.330.017847.8664.6643.140.87
GC_Trib30RCH220 8257.7565fu393621.77626.06625.83626.90.018837.3753.3726.980.88
GC_Trib30RCH220 8257.7562fu280621.77625.49625.32626.240.020526.9540.3121.370.89
GC_Trib30RCH220 7858.133100fu808617.2621.47621.43622.480.014098.39107.6855.350.82
GC_Trib30RCH220 7858.13350fu686617.2621.3621.14622.160.012677.6898.6252.090.77
GC_Trib30RCH220 7858.13325fu601617.2621.16620.88621.920.011847.1991.2349.270.74
GC_Trib30RCH220 7858.13310fu487617.2620.88620.49621.540.011486.6278.343.90.72
GC_Trib30RCH220 7858.1335fu393617.2620.62621.180.010946.0467.738.960.69
GC_Trib30RCH220 7858.1332fu280617.2620.28620.680.00975.1255.3332.240.63
GC_Trib30RCH220 7426.746100fu808612.17616.03616.01616.560.013847.5143.4119.340.77
GC_Trib30RCH220 7426.74650fu686612.17615.85615.84616.380.014897.46122.9110.370.79
GC_Trib30RCH220 7426.74625fu601612.17615.72615.72616.250.015587.39109.08103.650.8
GC_Trib30RCH220 7426.74610fu487612.17615.57615.57616.040.015076.9893.8795.720.78
GC_Trib30RCH220 7426.7465fu393612.17615.41615.41615.850.014946.6679.6787.670.77
GC_Trib30RCH220 7426.7462fu280612.17615.17615.17615.570.015746.3559.7474.930.78
GC_Trib30RCH220 7017.032100fu808607.9612.91613.380.005275.93173.6687.160.53
GC_Trib30RCH220 7017.03250fu686607.9612.6613.050.005385.68148.9975.830.52
GC_Trib30RCH220 7017.03225fu601607.9612.38612.80.005335.43133.1867.550.52
D- 30
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib30RCH220 7017.03210fu487607.9612612.370.005425.05110.1353.210.51
GC_Trib30RCH220 7017.0325fu393607.9611.64611.970.005694.7691.7348.350.51
GC_Trib30RCH220 7017.0322fu280607.9611.08611.380.006794.4566.7440.90.54
GC_Trib30RCH220 6664.922100fu808604608.83608.83610.240.017279.7899.2246.460.92
GC_Trib30RCH220 6664.92250fu686604608.48608.48609.80.018389.3983.7440.670.93
GC_Trib30RCH220 6664.92225fu601604608.17608.17609.460.020159.1972.2435.760.96
GC_Trib30RCH220 6664.92210fu487604607.82607.82608.950.021098.660.3931.330.96
GC_Trib30RCH220 6664.9225fu393604607.55607.46608.490.020437.8452.2328.980.93
GC_Trib30RCH220 6664.9222fu280604607.31607.03607.920.015286.2945.5626.90.79
GC_Trib30RCH220 6254.143100fu808600604.65604.890.003814.72212.84122.020.44
GC_Trib30RCH220 6254.14350fu686600604.39604.630.004364.81181.94116.40.46
GC_Trib30RCH220 6254.14325fu601600604.2604.440.004924.91159.51112.130.48
GC_Trib30RCH220 6254.14310fu487600603.93604.180.005694.98130.38105.140.51
GC_Trib30RCH220 6254.1435fu393600603.67603.930.006464.99104.5892.930.54
GC_Trib30RCH220 6254.1432fu280600603.32603.08603.590.007384.8675.3376.770.56
GC_Trib30RCH220 6022.799100fu808596.78601.76601.76603.160.0156410.0697.237.40.9
GC_Trib30RCH220 6022.79950fu686596.78601.36601.36602.710.016969.7682.9134.60.92
GC_Trib30RCH220 6022.79925fu601596.78601.11601.11602.370.017279.3774.3432.810.91
GC_Trib30RCH220 6022.79910fu487596.78600.69600.69601.860.018768.9261.3729.890.93
GC_Trib30RCH220 6022.7995fu393596.78600.34600.34601.390.019638.3751.3727.430.93
GC_Trib30RCH220 6022.7992fu280596.78599.83599.83600.730.022427.6838.2723.830.96
GC_Trib30RCH220 5528.997100fu808591.46596.94597.290.003215.04199.7794.730.42
GC_Trib30RCH220 5528.99750fu686591.46596.8597.080.002664.5186.7389.50.38
GC_Trib30RCH220 5528.99725fu601591.46596.63596.880.002424.18172.2783.320.36
GC_Trib30RCH220 5528.99710fu487591.46596.39596.590.002023.67153.5274.560.33
GC_Trib30RCH220 5528.9975fu393591.46596.07596.230.001833.3131.2760.30.31
GC_Trib30RCH220 5528.9972fu280591.46594.77594.990.004293.7775.7837.050.43
GC_Trib30RCH220 5182.431100fu975588.6597.05597.070.000141.52910.24221.830.1
GC_Trib30RCH220 5182.43150fu835588.6596.89596.90.000121.37873.89218.950.09
GC_Trib30RCH220 5182.43125fu727588.6596.71596.720.00011.25835.24215.840.08
GC_Trib30RCH220 5182.43110fu593588.6596.45596.468.2E-051.1780.52211.370.07
GC_Trib30RCH220 5182.4315fu477588.6596.12596.120.000070.98710.14205.460.07
GC_Trib30RCH220 5182.4312fu342588.6594.8594.810.000131.17454.73182.160.09
GC_Trib30RCH220 5087.411100fu975587.6597.04592.14597.069.4E-051.271035.96257.620.08
GC_Trib30RCH220 5087.41150fu835587.6596.88591.72596.897.7E-051.13994.342520.07
GC_Trib30RCH220 5087.41125fu727587.6596.7591.38596.716.5E-051.03950.35245.920.07
GC_Trib30RCH220 5087.41110fu593587.6596.45590.93596.465.2E-050.9888.79237.150.06
GC_Trib30RCH220 5087.4115fu477587.6596.11590.5596.124.3E-050.79810.78226.520.05
GC_Trib30RCH220 5087.4112fu342587.6594.65589.97594.760.00052.63130.01185.470.18
GC_Trib30RCH220 5075Culvert
GC_Trib30RCH220 5051.211100fu975587.09591.63591.63593.810.0184611.8282.4793.161
GC_Trib30RCH220 5051.21150fu835587.09591.21591.21593.170.0191511.2374.3282.281
D- 31
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib30RCH220 5051.21125fu727587.09590.86590.86592.650.0197610.7367.7575.621
GC_Trib30RCH220 5051.21110fu593587.09590.41590.41591.970.0206510.0259.1666.91
GC_Trib30RCH220 5051.2115fu477587.09589.99589.99591.340.021639.3251.2151.971
GC_Trib30RCH220 5051.2112fu342587.09589.45589.45590.530.023258.3341.0433.691
GC_Trib30RCH220 4922.144100fu1005584.99590.42590.490.000962.58483.65211.160.22
GC_Trib30RCH220 4922.14450fu861584.99590.22590.290.000912.43442.44206.110.22
GC_Trib30RCH220 4922.14425fu749584.99590.02590.080.000922.36401.24200.920.22
GC_Trib30RCH220 4922.14410fu610584.99589.82589.870.000832.16360.57195.680.2
GC_Trib30RCH220 4922.1445fu491584.99589.56589.610.000822.04311.6189.160.2
GC_Trib30RCH220 4922.1442fu351584.99589.22589.260.000791.86249.09180.320.19
GC_Trib30RCH220 4872.52100fu1005583.71590.37588.65590.460.000942.92532.63233.680.23
GC_Trib30RCH220 4872.5250fu861583.71590.18588.46590.250.000862.72489.93227.30.22
GC_Trib30RCH220 4872.5225fu749583.71589.98587.91590.050.000832.6446.87219.880.21
GC_Trib30RCH220 4872.5210fu610583.71589.78587.42589.840.00072.32406.26209.820.19
GC_Trib30RCH220 4872.525fu491583.71589.53586.97589.580.000632.11357.41200.20.18
GC_Trib30RCH220 4872.522fu351583.71589.2586.41589.240.000511.8295.71190.150.16
GC_Trib30RCH220 4850Culvert
GC_Trib30RCH220 4813.99100fu1005582.8588.4588.4588.970.006657.5217164.840.59
GC_Trib30RCH220 4813.9950fu861582.8588.26588.26588.80.006227.12195.48160.430.56
GC_Trib30RCH220 4813.9925fu749582.8588.13588.13588.650.005916.82176.18156.370.55
GC_Trib30RCH220 4813.9910fu610582.8587.53587.53588.330.009167.77108.5788.010.67
GC_Trib30RCH220 4813.995fu491582.8586.72586.72588.460.0207810.6948.1233.560.98
GC_Trib30RCH220 4813.992fu351582.8586586587.410.022179.5638.0626.140.97
GC_Trib30RCH220 4732.966100fu1005581.59587.94588.130.001934.24307.07114.590.33
GC_Trib30RCH220 4732.96650fu861581.59587.64587.820.001914.05274.03107.650.32
GC_Trib30RCH220 4732.96625fu749581.59587.38587.550.001913.91246.33101.470.32
GC_Trib30RCH220 4732.96610fu610581.59586.97587.130.002033.79206.6393.390.33
GC_Trib30RCH220 4732.9665fu491581.59586.54586.70.002333.78168.1987.080.34
GC_Trib30RCH220 4732.9662fu352581.59586.12586.260.002273.45132.9280.850.33
GC_Trib30RCH220 4694.598100fu1005581.3587.55586.62587.970.004536.95295.05118.580.51
GC_Trib30RCH220 4694.59850fu861581.3587.25586.34587.660.004516.69260.74110.050.51
GC_Trib30RCH220 4694.59825fu749581.3586.98586.12587.380.004516.47232.52102.490.5
GC_Trib30RCH220 4694.59810fu610581.3586.55585.66586.950.004736.25191.3690.350.51
GC_Trib30RCH220 4694.5985fu491581.3586.1585.29586.510.005196.12152.3780.680.52
GC_Trib30RCH220 4694.5982fu352581.3585.84584.74586.120.003594.88132.6674.950.43
GC_Trib30RCH220 4665Culvert
GC_Trib30RCH220 4658.317100fu1005581586.96586.96587.930.010179.74203.2106.150.75
GC_Trib30RCH220 4658.31750fu861581586.65586.65587.620.010539.5173.0386.380.76
GC_Trib30RCH220 4658.31725fu749581586.37586.37587.350.010829.27150.5478.790.76
GC_Trib30RCH220 4658.31710fu610581585.93585.93586.950.012049.14118.0867.220.79
GC_Trib30RCH220 4658.3175fu491581585.45585.45586.490.013478.9288.5355.240.82
GC_Trib30RCH220 4658.3172fu352581584.79584.79585.810.015738.4657.2540.030.85
D- 32
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib30RCH220 4550.854100fu1005579.77584.76585.270.007345.74179.8874.830.59
GC_Trib30RCH220 4550.85450fu861579.77584.47584.940.00775.49158.9368.90.59
GC_Trib30RCH220 4550.85425fu749579.77584.22584.650.008115.27142.563.870.6
GC_Trib30RCH220 4550.85410fu610579.77583.88584.270.008685.02121.5857.570.61
GC_Trib30RCH220 4550.8545fu491579.77583.49583.860.009274.88100.5252.090.62
GC_Trib30RCH220 4550.8542fu352579.77582.94583.290.01074.7773.8344.170.65
GC_Trib30RCH220 4354.023100fu1005576.21582.17581.81583.250.01448.39128.9571.030.82
GC_Trib30RCH220 4354.02350fu861576.21581.87581.53582.850.01477.95111.0546.190.82
GC_Trib30RCH220 4354.02325fu749576.21581.65581.26582.520.014517.5101.2543.10.8
GC_Trib30RCH220 4354.02310fu610576.21581.36580.93582.090.014126.8689.2339.420.78
GC_Trib30RCH220 4354.0235fu491576.21581.09580.53581.690.013146.227936.030.74
GC_Trib30RCH220 4354.0232fu352576.21580.63579.92581.10.011425.5463.5130.870.68
GC_Trib30RCH220 4135.271100fu1005574.44580.25580.850.007816.51211.15155.10.55
GC_Trib30RCH220 4135.27150fu861574.44579.83580.380.008196.24165.5154.840.55
GC_Trib30RCH220 4135.27125fu749574.44579.45579.980.008916.08145.152.510.56
GC_Trib30RCH220 4135.27110fu610574.44578.97579.460.009865.82120.6549.570.58
GC_Trib30RCH220 4135.2715fu491574.44578.5578.970.01145.6298.0746.820.61
GC_Trib30RCH220 4135.2712fu352574.44577.94578.350.013585.2372.5643.570.64
GC_Trib30RCH220 3953.275100fu1491571.8578.62579.570.006257.97224.6286.390.65
GC_Trib30RCH220 3953.27550fu1276571.8578.32579.140.005887.38199.5577.730.63
GC_Trib30RCH220 3953.27525fu1103571.8577.99578.720.00586.95175.4860.740.62
GC_Trib30RCH220 3953.27510fu896571.8577.57578.190.005636.36151.2456.060.59
GC_Trib30RCH220 3953.2755fu709571.8577.13577.650.005575.78127.6750.760.58
GC_Trib30RCH220 3953.2752fu499571.8576.54576.930.005685.0799.543.590.56
GC_Trib30RCH220 3583.837100fu1491569.91576.08577.040.007498.4257.68108.170.71
GC_Trib30RCH220 3583.83750fu1276569.91575.73575.4576.650.007748.07220.5105.790.71
GC_Trib30RCH220 3583.83725fu1103569.91575.52575.01576.330.007227.52198.36104.340.68
GC_Trib30RCH220 3583.83710fu896569.91575.2574.51575.90.00686.88165.45101.220.65
GC_Trib30RCH220 3583.8375fu709569.91574.83574.04575.420.006496.24131.8882.220.63
GC_Trib30RCH220 3583.8372fu499569.91574.34574.780.005995.3397.4356.410.58
GC_Trib30RCH220 3237.97100fu1491567.79572.45573.780.011959.86215.7105.080.89
GC_Trib30RCH220 3237.9750fu1276567.79572.21572.21573.40.011449.23191.2196.920.86
GC_Trib30RCH220 3237.9725fu1103567.79571.87571.87573.060.012639.08160.3786.170.89
GC_Trib30RCH220 3237.9710fu896567.79571.44571.44572.570.01428.75125.8774.330.92
GC_Trib30RCH220 3237.975fu709567.79571.04571.04572.070.015538.2698.3863.330.94
GC_Trib30RCH220 3237.972fu499567.79570.53570.53571.410.017967.5769.349.090.97
GC_Trib30RCH220 2924.848100fu1491563.46570.02570.860.007117.63253.22870.57
GC_Trib30RCH220 2924.84850fu1276563.46569.69570.420.00667.07225.9280.390.54
GC_Trib30RCH220 2924.84825fu1103563.46569.2569.910.007196.91188.5470.570.56
GC_Trib30RCH220 2924.84810fu896563.46568.96569.50.005755.97172.364.610.49
GC_Trib30RCH220 2924.8485fu709563.46568.41568.870.005725.46140.4650.920.48
GC_Trib30RCH220 2924.8482fu499563.46567.7568.040.005554.72109.5639.010.46
D- 33
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib30RCH220 2497.137100fu1491559.8567.31568.20.0055410.03383.79140.60.67
GC_Trib30RCH220 2497.13750fu1276559.8566.47567.490.0070910.42283.9598.950.74
GC_Trib30RCH220 2497.13725fu1103559.8566.01566.910.006889.7424378.080.72
GC_Trib30RCH220 2497.13710fu896559.8564.99566.170.0107810.68168.5866.40.87
GC_Trib30RCH220 2497.1375fu709559.8564.46565.530.010939.94136.0557.620.86
GC_Trib30RCH220 2497.1372fu499559.8563.77564.70.011388.9999.3549.660.85
GC_Trib30RCH220 2360.625100fu1491559.01564.2563.92566.780.01813.9175.6498.431.13
GC_Trib30RCH220 2360.62550fu1276559.01564.18563.73566.10.013511.99173.16980.98
GC_Trib30RCH220 2360.62525fu1103559.01564.03563.71565.630.0115510.86159.0695.50.9
GC_Trib30RCH220 2360.62510fu896559.01563.78564.830.008398.92144.648.040.76
GC_Trib30RCH220 2360.6255fu709559.01563.48564.270.006887.69130.3846.330.68
GC_Trib30RCH220 2360.6252fu499559.01562.92563.490.005996.48105.0943.120.62
GC_Trib30RCH220 1985.277100fu1491557.31562.64562.285630.004746.42466.3281.890.56
GC_Trib30RCH220 1985.27750fu1276557.31562.44562.13562.790.004816.25410.52267.780.56
GC_Trib30RCH220 1985.27725fu1103557.31562.28562.620.00476.01368.7256.610.55
GC_Trib30RCH220 1985.27710fu896557.31562.09562.40.004345.57320.72243.160.52
GC_Trib30RCH220 1985.2775fu709557.31561.86562.150.004125.18267.03224.160.51
GC_Trib30RCH220 1985.2772fu499557.31561.68561.880.002854.15227.82207.670.42
GC_Trib30RCH220 1712.499100fu1491556.52560.96560.96561.440.007616.94339.01313.980.68
GC_Trib30RCH220 1712.49950fu1276556.52560.88560.88561.30.006796.44313.37309.110.64
GC_Trib30RCH220 1712.49925fu1103556.52560.79560.79561.180.006426.13284.45303.510.62
GC_Trib30RCH220 1712.49910fu896556.52560.64560.64561.020.006275.86239.78294.670.61
GC_Trib30RCH220 1712.4995fu709556.52560.5560.5560.860.005735.43200.07286.570.58
GC_Trib30RCH220 1712.4992fu499556.52560.05559.47560.60.008835.9885.04104.80.69
GC_Trib30RCH220 1444.653100fu1491554.99560.76560.790.000362.081207.57493.650.16
GC_Trib30RCH220 1444.65350fu1276554.99560.49560.520.000372.041074.96483.230.16
GC_Trib30RCH220 1444.65325fu1103554.99560.3560.330.000361.96983.93475.950.16
GC_Trib30RCH220 1444.65310fu896554.99560.04560.060.000361.88859.31465.80.16
GC_Trib30RCH220 1444.6535fu709554.99559.69559.710.00041.88702.02439.760.16
GC_Trib30RCH220 1444.6532fu499554.99558.4558.4558.680.005515.41199.83337.080.57
GC_Trib30RCH220 1175.477100fu1844552.61560.73560.750.000111.382148.97600.030.09
GC_Trib30RCH220 1175.47750fu1522552.61560.47560.489.7E-051.251989.19593.70.09
GC_Trib30RCH220 1175.47725fu1312552.61560.28560.298.6E-051.161878.47589.270.08
GC_Trib30RCH220 1175.47710fu1048552.61560.02560.037.2E-051.031725.59583.10.07
GC_Trib30RCH220 1175.4775fu817552.61559.67559.686.2E-050.921527.98565.10.07
GC_Trib30RCH220 1175.4772fu565552.61558.22558.240.000221.4765.26476.240.12
GC_Trib30RCH220 995.299100fu1844550.72560.7557.43560.730.000161.971897.894490.11
GC_Trib30RCH220 995.29950fu1522550.72560.44556.84560.460.000131.761780.34446.780.1
GC_Trib30RCH220 995.29925fu1312550.72560.26556.45560.270.000121.611698.43445.230.09
GC_Trib30RCH220 995.29910fu1048550.72560555.87560.019.1E-051.411584.6443.070.08
GC_Trib30RCH220 995.2995fu817550.72559.66555.33559.677.5E-051.241434.07439.460.08
GC_Trib30RCH220 995.2992fu565550.72557.95554.5558.130.000893.68216.42391.620.25
GC_Trib30RCH220 950Culvert
D- 34
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib30RCH220 941.201100fu1844550.6558.21556.72559.630.006149.64199.51177.330.67
GC_Trib30RCH220 941.20150fu1522550.6557.87556.14558.950.005018.41188.67166.810.6
GC_Trib30RCH220 941.20125fu1312550.6557.57555.74558.460.004417.63179.13147.150.56
GC_Trib30RCH220 941.20110fu1048550.6557.4555.195580.003116.28173.56135.660.46
GC_Trib30RCH220 941.2015fu817550.6557.02554.64557.440.002395.26161.41118.770.4
GC_Trib30RCH220 941.2012fu565550.6556.13554556.420.002144.39132.82107.680.37
GC_Trib30RCH220 639.014100fu1844548.75557.48557.910.00296.77564.82254.190.46
GC_Trib30RCH220 639.01450fu1522548.75556.63557.30.004647.82374.27194.690.58
GC_Trib30RCH220 639.01425fu1312548.75556.07556.890.005998.3276.68155.270.64
GC_Trib30RCH220 639.01410fu1048548.75555.3556.380.008749174.55109.710.76
GC_Trib30RCH220 639.0145fu817548.75554.62554.62555.850.011299.15113.4670.550.83
GC_Trib30RCH220 639.0142fu565548.75553.77553.63554.860.013758.4972.9432.710.88
GC_Trib30RCH220 322.308100fu1844547.6556.18553.27556.930.00367.6326.85282.950.47
GC_Trib30RCH220 322.30850fu1522547.6555.4552.69556.070.00367.09268.0446.50.46
GC_Trib30RCH220 322.30825fu1312547.6554.83552.3555.440.00366.71241.9745.080.46
GC_Trib30RCH220 322.30810fu1048547.6554.05551.76554.570.00366.17207.5443.150.45
GC_Trib30RCH220 322.3085fu817547.6553.29551.25553.720.00365.63175.1841.270.44
GC_Trib30RCH220 322.3082fu565547.6552.33550.6552.660.00364.89136.6738.860.42
GC_Trib220RCH500 771.025100fu526705711.45711.480.000291.62353.97102.650.13
GC_Trib220RCH500 771.02550fu433705710.46710.50.000491.81257.7891.530.16
GC_Trib220RCH500 771.02525fu370705709.75709.810.000782196.381.60.2
GC_Trib220RCH500 771.02510fu275705708.62708.710.002082.44114.6663.450.3
GC_Trib220RCH500 771.0255fu201705707.66707.830.007333.3160.7547.630.52
GC_Trib220RCH500 771.0252fu113705706.67706.67707.060.033985.0322.4829.721.02
GC_Trib220RCH500 610.36100fu526703.2711.39705.82711.440.000231.99338.5271.360.12
GC_Trib220RCH500 610.3650fu433703.2710.4705.55710.450.000271.97280.963.660.13
GC_Trib220RCH500 610.3625fu370703.2709.68705.36709.730.000311.95239.7858.090.14
GC_Trib220RCH500 610.3610fu275703.2708.52705.03708.570.000381.89177.4550.860.15
GC_Trib220RCH500 610.365fu201703.2707.53704.74707.570.000471.81129.7744.750.16
GC_Trib220RCH500 610.362fu113703.2706.16704.33706.20.000651.6374.3236.960.17
GC_Trib220RCH500 400Culvert
GC_Trib220RCH500 177.997100fu526696.6699.85699.08700.310.007215.5295.7359.230.58
GC_Trib220RCH500 177.99750fu433696.6699.52698.85699.930.007515.1984.0954.610.58
GC_Trib220RCH500 177.99725fu370696.6699.28698.69699.660.007824.9575.5551.220.59
GC_Trib220RCH500 177.99710fu275696.6698.9698.4699.210.008374.5261.7645.750.59
GC_Trib220RCH500 177.9975fu201696.6698.57698.15698.830.009024.149.7440.980.59
GC_Trib220RCH500 177.9972fu113696.6698.1697.76698.280.010223.4133.3334.320.59
GC_Trib220RCH500 29.17100fu526693.25697.15697.15698.310.02438.6560.8426.671.01
GC_Trib220RCH500 29.1750fu433693.25696.82696.82697.880.024878.2952.2324.851.01
GC_Trib220RCH500 29.1725fu370693.25696.58696.58697.560.024997.9746.4323.551
GC_Trib220RCH500 29.1710fu275693.25696.14696.14697.010.026017.4736.7921.211
GC_Trib220RCH500 29.175fu201693.25695.74695.74696.50.027497.0128.6719.021.01
D- 35
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib220RCH500 29.172fu113693.25695.15695.15695.740.029726.1518.3715.811.01
GC_Trib210RCH510 4190.791100fu244733.74738.05738.080.000441.61242.23114.830.14
GC_Trib210RCH510 4190.79150fu205733.74737.87737.890.000381.46221.49109.420.13
GC_Trib210RCH510 4190.79125fu178733.74737.68737.70.000351.36201.37103.490.12
GC_Trib210RCH510 4190.79110fu142733.74737.07737.10.000461.38145.1782.050.14
GC_Trib210RCH510 4190.7915fu111733.74736.34736.370.000731.4794.9756.620.16
GC_Trib210RCH510 4190.7912fu77733.74735.5735.530.001531.6155.0741.620.22
GC_Trib210RCH510 4093.057100fu244731.78738.02734.2738.050.000311.59276.56121.910.12
GC_Trib210RCH510 4093.05750fu205731.78737.84733.98737.860.000261.41255.59114.460.11
GC_Trib210RCH510 4093.05725fu178731.78737.65733.82737.670.000231.3234.77109.080.1
GC_Trib210RCH510 4093.05710fu142731.78736.98733.59737.040.000581.9971.1881.330.16
GC_Trib210RCH510 4093.0575fu111731.78736.25733.36736.30.000611.8460.466.830.16
GC_Trib210RCH510 4093.0572fu77731.78735.4733.08735.440.000641.6147.8340.770.16
GC_Trib210RCH510 4000Culvert
GC_Trib210RCH510 3944.156100fu244730.3732.18731.45732.340.005813.3581.3856.280.44
GC_Trib210RCH510 3944.15650fu205730.3732.02731.33732.160.005643.173.5754.880.43
GC_Trib210RCH510 3944.15625fu178730.3731.9731.26732.020.005482.9167.9354.130.42
GC_Trib210RCH510 3944.15610fu142730.3731.73731.14731.830.00532.6459.5953.090.4
GC_Trib210RCH510 3944.1565fu111730.3731.56731.03731.640.005142.3751.5752.080.39
GC_Trib210RCH510 3944.1562fu77730.3731.34730.9731.40.004982.0441.3550.80.37
GC_Trib210RCH510 3809.606100fu244729.48731.3730.72731.470.007393.4377.1957.460.48
GC_Trib210RCH510 3809.60650fu205729.48731.14730.61731.30.007453.2168.5155.840.48
GC_Trib210RCH510 3809.60625fu178729.48731.03730.53731.170.007493.0562.2754.670.47
GC_Trib210RCH510 3809.60610fu142729.48730.87730.42730.990.007542.853.55530.46
GC_Trib210RCH510 3809.6065fu111729.48730.72730.32730.810.007542.5445.6251.430.45
GC_Trib210RCH510 3809.6062fu77729.48730.53730.2730.60.007492.1936.1549.490.44
GC_Trib210RCH510 3533.142100fu244724.59727.02727.02727.810.029317.2336.4326.140.97
GC_Trib210RCH510 3533.14250fu205724.59726.83726.83727.550.030766.8631.724.920.98
GC_Trib210RCH510 3533.14225fu178724.59726.69726.69727.360.03226.5928.323.960.99
GC_Trib210RCH510 3533.14210fu142724.59726.5726.5727.080.034346.1523.7622.610.99
GC_Trib210RCH510 3533.1425fu111724.59726.31726.31726.820.037095.7119.721.331
GC_Trib210RCH510 3533.1422fu77724.59726.09726.09726.50.041695.1215.0719.771.02
GC_Trib210RCH510 3049.75100fu275719.53726726.010.000121.11568.6190.70.08
GC_Trib210RCH510 3049.7550fu235719.53725.45725.460.000151.14467.62176.390.08
GC_Trib210RCH510 3049.7525fu205719.53725.02725.030.000171.16393.11165.010.09
GC_Trib210RCH510 3049.7510fu165719.53724.4724.420.000211.21296.65148.980.1
GC_Trib210RCH510 3049.755fu130719.53723.81723.830.000281.25213.55130.80.11
GC_Trib210RCH510 3049.752fu91719.53723.07723.090.000371.27129.2195.050.12
GC_Trib210RCH510 2951.358100fu275719.52725.85721.84725.960.000822.86112.73189.740.2
GC_Trib210RCH510 2951.35850fu235719.52725.31721.63725.410.000822.68102.56173.430.2
GC_Trib210RCH510 2951.35825fu205719.52724.89721.46724.970.000812.5494.49160.480.19
GC_Trib210RCH510 2951.35810fu165719.52724.29721.22724.360.000792.3283.12138.90.19
D- 36
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib210RCH510 2951.3585fu130719.52723.71720.98723.770.000772.172.19111.240.18
GC_Trib210RCH510 2951.3582fu91719.52722.99720.69723.030.000741.8158.4474.850.17
GC_Trib210RCH510 2900Culvert
GC_Trib210RCH510 2814.32100fu275716.59719.28718.52719.690.009075.2155.7553.790.57
GC_Trib210RCH510 2814.3250fu235716.59719.06718.34719.430.009014.950.3146.310.56
GC_Trib210RCH510 2814.3225fu205716.59718.88718.19719.220.008964.6445.9544.190.55
GC_Trib210RCH510 2814.3210fu165716.59718.64717.99718.910.008764.2339.9341.190.54
GC_Trib210RCH510 2814.325fu130716.59718.4717.78718.620.008573.8334.3438.240.52
GC_Trib210RCH510 2814.322fu91716.59718.08717.56718.250.008453.3127.5334.380.5
GC_Trib210RCH510 2688.169100fu275715.53718.26718.590.007884.8571.9547.510.54
GC_Trib210RCH510 2688.16950fu235715.53718.03718.330.008014.5862.1536.940.54
GC_Trib210RCH510 2688.16925fu205715.53717.88718.140.007764.356.7734.610.52
GC_Trib210RCH510 2688.16910fu165715.53717.65717.870.007563.9349.0332.950.51
GC_Trib210RCH510 2688.1695fu130715.53717.42717.610.007363.5741.7831.310.49
GC_Trib210RCH510 2688.1692fu91715.53717.15717.280.006833.0433.4329.310.46
GC_Trib210RCH510 2456.436100fu275713.56716.35716.650.008964.3963.3537.340.55
GC_Trib210RCH510 2456.43650fu235713.56716.25716.490.00783.9659.7435.630.51
GC_Trib210RCH510 2456.43625fu205713.56716.09716.310.007973.7854.3132.880.51
GC_Trib210RCH510 2456.43610fu165713.56715.83716.030.008383.5846.1230.030.51
GC_Trib210RCH510 2456.4365fu130713.56715.55715.730.009013.4237.9827.950.52
GC_Trib210RCH510 2456.4362fu91713.56715.17715.340.010543.2528.0325.170.54
GC_Trib210RCH510 2032.662100fu275711.2714.1714.20.003872.65131.87327.590.35
GC_Trib210RCH510 2032.66250fu235711.2714714.10.004152.6398.48322.040.36
GC_Trib210RCH510 2032.66225fu205711.2713.92714.010.003842.4583.6554.060.35
GC_Trib210RCH510 2032.66210fu165711.2713.73713.810.00352.2373.8851.040.33
GC_Trib210RCH510 2032.6625fu130711.2713.55713.610.00308264.9548.120.3
GC_Trib210RCH510 2032.6622fu91711.2713.3713.350.002581.753.444.060.27
GC_Trib210RCH510 1745.043100fu275710.87712.57712.37712.680.007642.83109.05172.460.47
GC_Trib210RCH510 1745.04350fu235710.87712.54712.33712.630.006442.55104.09171.40.43
GC_Trib210RCH510 1745.04325fu205710.87712.48712.31712.560.006842.5393.44169.10.44
GC_Trib210RCH510 1745.04310fu165710.87712.42712.26712.490.006372.3482.94166.810.42
GC_Trib210RCH510 1745.0435fu130710.87712.35712.410.005982.1772.19164.440.4
GC_Trib210RCH510 1745.0432fu91710.87712.27712.14712.320.005361.9358.54161.360.37
GC_Trib210RCH510 1400.883100fu585704.88706.89706.89707.380.023675.86108.87118.520.86
GC_Trib210RCH510 1400.88350fu494704.88706.7706.7707.210.029015.988.3794.430.93
GC_Trib210RCH510 1400.88325fu432704.88706.63706.63707.080.027945.5681.5790.910.9
GC_Trib210RCH510 1400.88310fu351704.88706.47706.47706.90.030935.3468.2683.590.93
GC_Trib210RCH510 1400.8835fu280704.88706.33706.33706.720.034135.0756.6376.610.95
GC_Trib210RCH510 1400.8832fu200704.88706.14706.14706.480.040334.6942.9367.490.99
GC_Trib210RCH510 1158.282100fu585697.79704.2700.39704.310.000832.77219.85170.830.2
GC_Trib210RCH510 1158.28250fu494697.79703.47700.14703.580.000932.69191.4149.60.21
GC_Trib210RCH510 1158.28225fu432697.79702.98699.96703.090.0012.61172.39127.090.21
D- 37
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib210RCH510 1158.28210fu351697.79702.31699.71702.40.001122.5146.190.930.22
GC_Trib210RCH510 1158.2825fu280697.79701.67699.47701.760.001282.39121.3360.730.23
GC_Trib210RCH510 1158.2822fu200697.79700.89699.15700.970.00162.2591.1548.590.24
GC_Trib210RCH510 1000Culvert
GC_Trib210RCH510 872.823100fu585695.17697.96697.96699.190.022558.965.8739.740.99
GC_Trib210RCH510 872.82350fu494695.17697.72697.67698.790.022448.3159.4738.060.97
GC_Trib210RCH510 872.82325fu432695.17697.58697.49698.510.021137.7455.8437.080.93
GC_Trib210RCH510 872.82310fu351695.17697.35697.22698.120.020357.0749.6435.730.9
GC_Trib210RCH510 872.8235fu280695.17697.01696.96697.740.023926.8341.0233.780.95
GC_Trib210RCH510 872.8232fu200695.17696.64696.64697.260.028446.3331.5831.621
GC_Trib210RCH510 770.649100fu1104690.95697.78698.070.003255.13297.08173.990.41
GC_Trib210RCH510 770.64950fu913690.95697.37697.710.003995.38230.57150.770.44
GC_Trib210RCH510 770.64925fu787690.95697.08697.460.004625.53188.73134.120.47
GC_Trib210RCH510 770.64910fu618690.95696.64695.39697.080.005655.69134.91090.51
GC_Trib210RCH510 770.6495fu466690.95696.16694.82696.640.006475.5689.3381.940.54
GC_Trib210RCH510 770.6492fu278690.95695.21695.540.005784.6160.3322.240.49
GC_Trib210RCH510 492.125100fu1104689.51695.4694.7696.420.012228.11136.0838.850.76
GC_Trib210RCH510 492.12550fu913689.51694.93694.26695.850.01227.71118.4636.540.75
GC_Trib210RCH510 492.12525fu787689.51694.59693.94695.440.01227.4106.2934.850.75
GC_Trib210RCH510 492.12510fu618689.51694.08693.49694.830.01226.9389.1532.330.74
GC_Trib210RCH510 492.1255fu466689.51693.57693.04694.20.01226.3773.230.340.72
GC_Trib210RCH510 492.1252fu278689.51692.81692.36693.270.012215.4251.3327.40.7
GC_Trib205RCH490 1198.244100fu645684689.2689.05690.260.015338.3982.8838.610.84
GC_Trib205RCH490 1198.24450fu545684688.94688.69689.880.015047.8573.3235.370.82
GC_Trib205RCH490 1198.24425fu477684688.75688.46689.60.014737.4266.86330.8
GC_Trib205RCH490 1198.24410fu388684688.14688.11689.120.023877.9448.9625.40.97
GC_Trib205RCH490 1198.2445fu308684687.91687.76688.690.021597.143.3923.080.91
GC_Trib205RCH490 1198.2442fu219684687.64687.29688.170.016085.8437.4821.390.78
GC_Trib205RCH490 858.071100fu645681.05684.84684.84685.270.013186.98156.24152.690.75
GC_Trib205RCH490 858.07150fu545681.05684.74684.74685.140.012216.55141.68151.430.72
GC_Trib205RCH490 858.07125fu477681.05684.66684.66685.040.011656.28130.16150.430.7
GC_Trib205RCH490 858.07110fu388681.05684.7684.56684.920.006954.89135.53150.90.54
GC_Trib205RCH490 858.0715fu308681.05684.56684.43684.770.006694.62114.42149.050.52
GC_Trib205RCH490 858.0712fu219681.05684.33684.3684.570.007224.581.18146.10.54
GC_Trib205RCH490 377.755100fu645674.85680.47680.780.00415.05214.64235.640.45
GC_Trib205RCH490 377.75550fu545674.85680.21680.60.004915.28154.2229.50.49
GC_Trib205RCH490 377.75525fu477674.85679.86678.82680.350.006475.6790.6541.870.55
GC_Trib205RCH490 377.75510fu388674.85678.62678.47679.520.020587.6150.9823.750.92
GC_Trib205RCH490 377.7555fu308674.85678.11678.11679.050.025967.839.4621.141.01
GC_Trib205RCH490 377.7552fu219674.85677.64677.64678.460.02747.2730.1318.761.01
GC_Trib205RCH490 218.547100fu645671.06680.54675.5680.560.000171.73734.53324.130.1
GC_Trib205RCH490 218.54750fu545671.06680.26675.16680.310.000292.19384.19311.420.13
D- 38
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib205RCH490 218.54725fu477671.06679.78674.91679.930.000693.26150.63241.630.2
GC_Trib205RCH490 218.54710fu388671.06678.65674.49678.790.000783.13128.05165.780.21
GC_Trib205RCH490 218.5475fu308671.06677.55674.1677.690.000913.01106.267.930.22
GC_Trib205RCH490 218.5472fu219671.06676.22673.61676.340.001192.8779.4535.650.24
GC_Trib205RCH490 190Culvert
GC_Trib205RCH490 160.662100fu645670.48674.74674.12675.670.01137.7383.4537.970.74
GC_Trib205RCH490 160.66250fu545670.48674.47673.83675.250.01077.1176.6835.920.71
GC_Trib205RCH490 160.66225fu477670.48674.25673.62674.940.010426.6971.3534.320.69
GC_Trib205RCH490 160.66210fu388670.48673.95673.32674.520.009946.0763.9332.120.66
GC_Trib205RCH490 160.6625fu308670.48673.6673.03674.080.010125.5655.3729.850.65
GC_Trib205RCH490 160.6622fu219670.48673.16672.65673.540.01054.9144.61270.64
GC_Trib205RCH490 41.651100fu645667672.47672.47673.830.018769.5573.1530.080.91
GC_Trib205RCH490 41.65150fu545667672.1672.1673.390.020299.2162.5627.260.92
GC_Trib205RCH490 41.65125fu477667671.83671.83673.050.021698.9555.3725.20.94
GC_Trib205RCH490 41.65110fu388667671.41671.41672.570.024998.6345.5722.130.98
GC_Trib205RCH490 41.6515fu308667671.06671.06672.070.027158.0838.1519.491
GC_Trib205RCH490 41.6512fu219667670.46670.46671.420.029017.8327.9614.811
GC_Trib200RCH430 1445.456100fu462675.88678.91678.91679.580.018387.7496.9977.570.83
GC_Trib200RCH430 1445.45650fu393675.88678.76678.76679.380.017787.3285.6773.310.81
GC_Trib200RCH430 1445.45625fu346675.88678.66678.66679.230.017086.9878.0870.760.79
GC_Trib200RCH430 1445.45610fu284675.88678.47678.47679.020.017156.6365.366.260.78
GC_Trib200RCH430 1445.4565fu229675.88678.28678.28678.790.017246.2753.0261.620.77
GC_Trib200RCH430 1445.4562fu167675.88678.2677.91678.520.0114.8848.3759.840.61
GC_Trib200RCH430 1163.808100fu462671.63678.51678.530.000151.19504.13187.630.08
GC_Trib200RCH430 1163.80850fu393671.63677.67677.70.000281.46355.6157.640.11
GC_Trib200RCH430 1163.80825fu346671.63677.07677.10.000391.6271.95124.090.13
GC_Trib200RCH430 1163.80810fu284671.63676.23676.280.000771.97179.4697.80.18
GC_Trib200RCH430 1163.8085fu229671.63675.45675.540.002022.75109.0382.650.27
GC_Trib200RCH430 1163.8082fu167671.63674.36674.35674.850.016135.8134.0443.020.72
GC_Trib200RCH430 1066.091100fu462670.27678.45673.01678.50.000362.14297.3225.040.13
GC_Trib200RCH430 1066.09150fu393670.27677.61672.83677.660.000392.07263.01187.70.14
GC_Trib200RCH430 1066.09125fu346670.27677.01672.67677.060.000412.01238.49176.260.14
GC_Trib200RCH430 1066.09110fu284670.27676.18672.47676.220.000451.93204.36160.350.14
GC_Trib200RCH430 1066.0915fu229670.27675.39672.26675.430.000511.85171.93142.720.15
GC_Trib200RCH430 1066.0912fu167670.27674.42671.91674.450.000621.77132119.760.16
GC_Trib200RCH430 900Culvert
GC_Trib200RCH430 745.513100fu462666.72669.52669.15669.920.010855.493.4362.270.63
GC_Trib200RCH430 745.51350fu393666.72669.35668.97669.720.010685.183.4758.180.61
GC_Trib200RCH430 745.51325fu346666.72669.22668.84669.570.010614.8876.2855.050.6
GC_Trib200RCH430 745.51310fu284666.72669.04668.65669.340.010454.5566.651.210.59
GC_Trib200RCH430 745.5135fu229666.72668.86668.46669.120.010144.1957.847.610.57
GC_Trib200RCH430 745.5132fu167666.72668.63668.2668.830.009723.747.0242.80.55
D- 39
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib200RCH430 514.474100fu462662.99665.21665.21666.020.02927.2865.742.520.98
GC_Trib200RCH430 514.47450fu393662.99665.04665.04665.770.030656.9458.3141.580.98
GC_Trib200RCH430 514.47425fu346662.99664.92664.92665.60.031626.6753.2340.930.99
GC_Trib200RCH430 514.47410fu284662.99664.74664.74665.350.033186.2746.2540.010.99
GC_Trib200RCH430 514.4745fu229662.99664.58664.58665.110.03525.8739.6339.10.99
GC_Trib200RCH430 514.4742fu167662.99664.37664.37664.810.038365.3231.6837.921
GC_Trib200RCH430 76.066100fu462655.16657.23656.94657.350.007312.65162.74226.250.44
GC_Trib200RCH430 76.06650fu393655.16657.14656.87657.260.00732.58143.38209.580.43
GC_Trib200RCH430 76.06625fu346655.16657.07656.82657.180.007312.52129.59196.840.43
GC_Trib200RCH430 76.06610fu284655.16656.98656.72657.080.00732.44111.79182.580.43
GC_Trib200RCH430 76.0665fu229655.16656.88656.66656.970.007312.3595.13168.20.43
GC_Trib200RCH430 76.0662fu167655.16656.76656.55656.830.007312.2475.06149.040.42
GC_Trib20RCH180 645.311100fu215566.52569.82569.66570.520.018786.7532.8319.940.86
GC_Trib20RCH180 645.31150fu199566.52569.73569.57570.390.018816.5531.1519.430.85
GC_Trib20RCH180 645.31125fu186566.52569.66569.48570.290.018846.3829.77190.85
GC_Trib20RCH180 645.31110fu170566.52569.57569.38570.160.01896.1728.0518.440.84
GC_Trib20RCH180 645.3115fu157566.52569.48569.28570.040.019016.0226.4717.920.84
GC_Trib20RCH180 645.3112fu136566.52569.33569.14569.840.019075.7623.8216.990.83
GC_Trib20RCH180 192.286100fu215556.99560.79560.58561.530.021026.931.1416.120.88
GC_Trib20RCH180 192.28650fu199556.99560.68560.46561.390.0216.7729.3915.660.87
GC_Trib20RCH180 192.28625fu186556.99560.58560.36561.270.021026.6627.9315.270.87
GC_Trib20RCH180 192.28610fu170556.99560.46560.26561.120.021026.5126.1114.770.86
GC_Trib20RCH180 192.2865fu157556.99560.36560.14560.990.021036.3824.614.340.86
GC_Trib20RCH180 192.2862fu136556.99560.18559.96560.770.021036.1622.0813.590.85
GC_Trib195RCH470 3233.213100fu665687.53691.55692.310.014567.21112.8164.350.75
GC_Trib195RCH470 3233.21350fu565687.53691.48692.070.011576.32108.1962.720.66
GC_Trib195RCH470 3233.21325fu497687.53691.2691.790.013326.3191.1456.30.7
GC_Trib195RCH470 3233.21310fu409687.53690.9690.49691.440.014175.9975.4349.650.71
GC_Trib195RCH470 3233.2135fu329687.53690.61690.23691.090.014965.616243.170.71
GC_Trib195RCH470 3233.2132fu240687.53690.26690.650.015675.0448.2835.340.7
GC_Trib195RCH470 3075.381100fu665683.83688.79688.79689.940.015189.88114.1457.250.82
GC_Trib195RCH470 3075.38150fu565683.83688688689.460.0235510.8377.7334.820.99
GC_Trib195RCH470 3075.38125fu497683.83687.87687.87689.130.021039.9973.2133.780.93
GC_Trib195RCH470 3075.38110fu409683.83687.5687.5688.660.021629.4461.5130.920.92
GC_Trib195RCH470 3075.3815fu329683.83687.13687.13688.190.022488.8850.5328.010.92
GC_Trib195RCH470 3075.3812fu240683.83686.65686.65687.570.024218.1537.8624.290.93
GC_Trib195RCH470 2839.955100fu665680686.5686.530.000351.74635.25227.340.13
GC_Trib195RCH470 2839.95550fu565680685.62685.660.000582449.57186.820.16
GC_Trib195RCH470 2839.95525fu497680684.99685.050.000832.18342.77155.450.19
GC_Trib195RCH470 2839.95510fu409680684.16684.240.001432.46225.37129.230.24
GC_Trib195RCH470 2839.9555fu329680683.39683.490.002482.71150.6384.680.3
GC_Trib195RCH470 2839.9552fu240680682.58682.720.005633.1487.1771.770.43
D- 40
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib195RCH470 2666.653100fu665677.63686.2681.95686.390.000933.7209.4176.860.24
GC_Trib195RCH470 2666.65350fu565677.63685.31681.63685.490.001063.63180.66161.960.25
GC_Trib195RCH470 2666.65325fu497677.63684.66681.38684.840.001183.59160.09138.480.26
GC_Trib195RCH470 2666.65310fu409677.63683.78680.98683.960.001433.55131.9291.90.27
GC_Trib195RCH470 2666.6535fu329677.63682.92680.64683.110.001813.55104.3543.890.3
GC_Trib195RCH470 2666.6532fu240677.63681.87680.13682.060.002673.5772.1733.040.35
GC_Trib195RCH470 2450Culvert
GC_Trib195RCH470 2347.764100fu665673.59678.84678.84681.010.0351311.8256.3913.770.99
GC_Trib195RCH470 2347.76450fu565673.59678.22678.22680.320.0373811.6248.6111.551
GC_Trib195RCH470 2347.76425fu497673.59677.77677.77679.780.0377111.3943.6410.851
GC_Trib195RCH470 2347.76410fu409673.59677.52677.27679.070.03049.9840.9710.80.9
GC_Trib195RCH470 2347.7645fu329673.59677.25676.77678.410.024238.663810.750.81
GC_Trib195RCH470 2347.7642fu240673.59676.82676.17677.620.018477.1833.4410.670.71
GC_Trib195RCH470 2248.356100fu665673.28677.17677.950.010527.1196.2736.930.71
GC_Trib195RCH470 2248.35650fu565673.28676.92677.590.010236.6387.0135.130.69
GC_Trib195RCH470 2248.35625fu497673.28676.72677.330.010116.2980.1633.730.67
GC_Trib195RCH470 2248.35610fu409673.28676.44676.960.009935.7971.0131.770.66
GC_Trib195RCH470 2248.3565fu329673.28676.14676.580.009935.3161.9529.710.64
GC_Trib195RCH470 2248.3562fu240673.28675.75675.18676.10.009724.7450.6527.880.62
GC_Trib195RCH470 1954.899100fu665668.92673.16673.13674.250.015098.8982.8137.320.86
GC_Trib195RCH470 1954.89950fu565668.92672.88672.84673.90.015598.5372.7434.980.86
GC_Trib195RCH470 1954.89925fu497668.92672.68672.63673.640.015828.216633.370.86
GC_Trib195RCH470 1954.89910fu409668.92672.4672.32673.270.01617.7457.0431.070.85
GC_Trib195RCH470 1954.8995fu329668.92672.13672.01672.880.016217.1948.7528.770.84
GC_Trib195RCH470 1954.8992fu240668.92671.75671.62672.390.016786.538.6225.750.83
GC_Trib195RCH470 1548.659100fu665662.62667.57667.02668.420.013377.4189.7231.520.77
GC_Trib195RCH470 1548.65950fu565662.62667.25666.71668.020.013147.0680.0829.930.76
GC_Trib195RCH470 1548.65925fu497662.62667.01666.47667.730.013146.8272.8728.680.75
GC_Trib195RCH470 1548.65910fu409662.62666.66666.13667.310.013156.4863.1326.910.75
GC_Trib195RCH470 1548.6595fu329662.62666.29665.8666.870.013336.1453.5825.050.74
GC_Trib195RCH470 1548.6592fu240662.62665.83665.38666.320.01325.6142.7522.750.72
GC_Trib195RCH470 1196.402100fu665657.9663.42664.020.011316.2107.3143.40.69
GC_Trib195RCH470 1196.40250fu565657.9663.08663.650.011466.0793.1239.160.69
GC_Trib195RCH470 1196.40225fu497657.9662.83663.380.011415.9583.5836.030.69
GC_Trib195RCH470 1196.40210fu409657.9662.42662.950.01155.8470.0231.040.69
GC_Trib195RCH470 1196.4025fu329657.9661.96662.480.011585.7856.925.560.68
GC_Trib195RCH470 1196.4022fu240657.9661.42660.82661.880.012045.4643.9922.170.68
GC_Trib195RCH470 865.51100fu665655.68659.39659.12660.150.011997.2799.3749.580.75
GC_Trib195RCH470 865.5150fu565655.68659.2659.860.011396.7789.9646.940.73
GC_Trib195RCH470 865.5125fu497655.68659.04659.640.011146.4382.7244.870.71
GC_Trib195RCH470 865.5110fu409655.68658.84659.350.010285.8574.142.480.67
GC_Trib195RCH470 865.515fu329655.68658.65659.060.009155.2166.2540.170.63
GC_Trib195RCH470 865.512fu240655.68658.4657.83658.690.007674.456.5637.130.56
D- 41
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib195RCH470 545.494100fu665651.77655.42655.42656.160.012968.13115.1474.520.8
GC_Trib195RCH470 545.49450fu565651.77655.2655.2655.930.013327.8799.769.050.8
GC_Trib195RCH470 545.49425fu497651.77655.05655.05655.750.013367.6189.5565.210.8
GC_Trib195RCH470 545.49410fu409651.77654.8654.8655.480.014227.3873.7957.640.81
GC_Trib195RCH470 545.4945fu329651.77654.48654.48655.190.01657.2857.4144.80.85
GC_Trib195RCH470 545.4942fu240651.77654654654.740.022327.2439.132.120.95
GC_Trib195RCH470 339.51100fu718647.87652.37651.94653.190.01397.28100.6150.830.79
GC_Trib195RCH470 339.5150fu628647.87652.3652.970.011626.5497.2548.080.72
GC_Trib195RCH470 339.5125fu571647.87652.24652.820.010416.194.4245.630.68
GC_Trib195RCH470 339.5110fu494647.87652.13652.610.009025.5189.7740.80.63
GC_Trib195RCH470 339.515fu418647.87652.86530.002763.58126.2768.320.36
GC_Trib195RCH470 339.512fu325647.87652.01652.240.004563.828536.630.44
GC_Trib195RCH470 268.531100fu718645.93652.43650.15652.60.00173.77290.68155.910.3
GC_Trib195RCH470 268.53150fu628645.93652.34649.87652.480.001443.43276.51153.930.27
GC_Trib195RCH470 268.53125fu571645.93652.26649.68652.390.00133.23265.26152.330.26
GC_Trib195RCH470 268.53110fu494645.93652.14649.4652.250.001122.95246.71149.660.24
GC_Trib195RCH470 268.5315fu418645.93652.82649.12652.860.000371.86353.62164.450.14
GC_Trib195RCH470 268.5312fu325645.93652.01648.73652.060.000572.06226.72146.730.17
GC_Trib195RCH470 254Bridge
GC_Trib195RCH470 238.608100fu718646.01651.91650.03652.170.002634.47222.56131.030.37
GC_Trib195RCH470 238.60850fu628646.01651.72649.78651.960.002484.22199.17119.110.36
GC_Trib195RCH470 238.60825fu571646.01651.6649.61651.820.002354.03185.16111.360.35
GC_Trib195RCH470 238.60810fu494646.01651.42649.36651.620.002143.74166.1899.910.33
GC_Trib195RCH470 238.6085fu418646.01651.22649.11651.390.001923.42147.5187.190.31
GC_Trib195RCH470 238.6082fu325646.01650.93648.76651.060.001612.97124.5971.840.28
GC_Trib195RCH470 100.695100fu718645.88651.8649.76651.870.000942.56483.81322.760.22
GC_Trib195RCH470 100.69550fu628645.88651.61649.53651.670.000942.48424.79290.810.22
GC_Trib195RCH470 100.69525fu571645.88651.48649.37651.550.000942.43388.99277.790.22
GC_Trib195RCH470 100.69510fu494645.88651.3649.12651.360.000952.35339.23258.60.22
GC_Trib195RCH470 100.6955fu418645.88651.09648.87651.150.000942.26288.43237.410.21
GC_Trib195RCH470 100.6952fu325645.88650.8648.5650.860.000952.13222.73206.820.21
GC_Trib190RCH450 2431.95100fu429699.83703.37704.020.014878.1793.6945.330.78
GC_Trib190RCH450 2431.9550fu365699.83702.78702.78703.650.024339.1968.2640.290.97
GC_Trib190RCH450 2431.9525fu321699.83702.68703.440.021898.5164.3539.460.91
GC_Trib190RCH450 2431.9510fu263699.83702.47702.38703.140.020757.8556.2237.660.88
GC_Trib190RCH450 2431.955fu212699.83702.32702.15702.850.017736.9550.4536.240.8
GC_Trib190RCH450 2431.952fu154699.83702.12701.81702.50.013445.7243.6934.510.69
GC_Trib190RCH450 1961.624100fu429693.78696.81696.81697.260.013856.8786.6789.650.73
GC_Trib190RCH450 1961.62450fu365693.78696.89695.93697.170.008085.3694.6494.60.56
GC_Trib190RCH450 1961.62425fu321693.78696.74695.92697.040.009045.4781.3886.20.58
GC_Trib190RCH450 1961.62410fu263693.78696.59695.91696.870.009085.2868.8277.410.58
GC_Trib190RCH450 1961.6245fu212693.78696.4695.91696.690.009955.2454.8765.390.6
D- 42
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib190RCH450 1961.6242fu154693.78696.07695.75696.410.012595.3436.9345.990.66
GC_Trib190RCH450 1600.659100fu429688.16692.44692.44692.860.009036.18100.12113.010.59
GC_Trib190RCH450 1600.65950fu365688.16692.02691.79692.920.018288.0555.9696.890.82
GC_Trib190RCH450 1600.65925fu321688.16691.78691.7692.570.01777.546.5125.750.8
GC_Trib190RCH450 1600.65910fu263688.16691.48691.41692.230.019327.2539.0923.550.82
GC_Trib190RCH450 1600.6595fu212688.16691.26691.12691.90.018386.6434.1221.950.79
GC_Trib190RCH450 1600.6592fu154688.16691.04690.74691.490.014825.5529.3520.30.69
GC_Trib190RCH450 1432.634100fu429685.73689.32689.32690.260.019669.0578.5744.760.88
GC_Trib190RCH450 1432.63450fu365685.73689.2689.980.016638.1273.543.520.81
GC_Trib190RCH450 1432.63425fu321685.73689.04689.760.016247.7566.4841.740.79
GC_Trib190RCH450 1432.63410fu263685.73688.85689.450.014366.9858.9739.740.73
GC_Trib190RCH450 1432.6345fu212685.73688.56689.130.015016.6347.7636.570.74
GC_Trib190RCH450 1432.6342fu154685.73688.09687.89688.680.018896.4831.7232.120.8
GC_Trib190RCH450 1332.082100fu429683.83688.5688.21688.830.006475.51161.39129.940.51
GC_Trib190RCH450 1332.08250fu365683.83688.07687.93688.590.010326.39106.03122.320.63
GC_Trib190RCH450 1332.08225fu321683.83687.91687.78688.40.01016.1289.2597.450.61
GC_Trib190RCH450 1332.08210fu263683.83687.64687.1688.160.011036.0164.0189.450.63
GC_Trib190RCH450 1332.0825fu212683.83687.47687.890.009415.3350.7260.810.58
GC_Trib190RCH450 1332.0822fu154683.83687.27687.540.006534.2141.9927.760.47
GC_Trib190RCH450 1126.731100fu429681.9685.65685.65686.650.02188.4164.739.150.89
GC_Trib190RCH450 1126.73150fu365681.9685.92686.480.010896.3376.0342.870.64
GC_Trib190RCH450 1126.73125fu321681.9685.67686.220.011796.2265.6939.480.66
GC_Trib190RCH450 1126.73110fu263681.9685.44685.90.011135.756.736.280.63
GC_Trib190RCH450 1126.7315fu212681.9684.98684.63685.480.015185.8241.4830.090.71
GC_Trib190RCH450 1126.7312fu154681.9684.29684.29684.960.032686.5424.0620.870.98
GC_Trib190RCH450 730.25100fu429675.12681.72682.070.003415.74143.7156.850.41
GC_Trib190RCH450 730.2550fu365675.12679.2679.2680.520.021710.1851.8922.70.94
GC_Trib190RCH450 730.2525fu321675.12679.03680.20.020129.5148.1821.850.9
GC_Trib190RCH450 730.2510fu263675.12678.58678.58679.720.022989.2638.8419.570.94
GC_Trib190RCH450 730.255fu212675.12678.53679.30.015967.6337.8119.30.78
GC_Trib190RCH450 730.252fu154675.12678.636790.007425.3239.7919.820.54
GC_Trib190RCH450 498.959100fu820671.86681.81681.840.000352.51906.44220.290.14
GC_Trib190RCH450 498.95950fu696671.86679.44679.540.001424.2451.21161.510.27
GC_Trib190RCH450 498.95925fu612671.86679.22679.320.001333.98416.96155.710.26
GC_Trib190RCH450 498.95910fu501671.86678.05678.260.00285.13254.04124.370.37
GC_Trib190RCH450 498.9595fu403671.86676.89677.310.006156.6134.0175.620.53
GC_Trib190RCH450 498.9592fu292671.86675.4676.210.016088.3758.8233.930.8
GC_Trib190RCH450 426.489100fu820670.21681.73673.81681.80.000192376.19239.930.11
GC_Trib190RCH450 426.48950fu696670.21679.4673.56679.490.000332.2292.46202.420.13
GC_Trib190RCH450 426.48925fu612670.21679.19673.38679.270.000271.99285.06198.520.12
GC_Trib190RCH450 426.48910fu501670.21678.07673.13678.140.000311.91244.56177.160.13
GC_Trib190RCH450 426.4895fu403670.21677672.89677.070.000351.84206.24159.30.13
GC_Trib190RCH450 426.4892fu292670.21675.69672.58675.740.000451.77158.78133.040.14
D- 43
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib190RCH450 300Culvert
GC_Trib190RCH450 129.896100fu820667.5671.77671.51672.860.014319.14119.6956.730.79
GC_Trib190RCH450 129.89650fu696667.5671.53671.21672.470.013068.39109.4852.30.75
GC_Trib190RCH450 129.89625fu612667.5671.35670.98672.180.012297.88101.5448.790.72
GC_Trib190RCH450 129.89610fu501667.5671.07670.49671.770.011277.1689.8943.960.68
GC_Trib190RCH450 129.8965fu403667.5670.77670.01671.360.01046.4877.9539.460.64
GC_Trib190RCH450 129.8962fu292667.5670.37669.64670.810.009075.5263.2533.290.59
GC_Trib190RCH450 22.995100fu820666.38670.65670.3671.230.01238.04212.85119.540.72
GC_Trib190RCH450 22.99550fu696666.38670.41670.06670.960.012317.69184.22110.750.72
GC_Trib190RCH450 22.99525fu612666.38670.22669.88670.750.012317.42164.16103.670.71
GC_Trib190RCH450 22.99510fu501666.38669.94669.6670.440.012317.01136.5892.430.7
GC_Trib190RCH450 22.9955fu403666.38669.66669.34670.120.012316.58111.9781.90.69
GC_Trib190RCH450 22.9952fu292666.38669.28668.97669.690.012315.9883.4468.70.67
GC_Trib180RCH460 5587.449100fu444701.85705.07705.07705.930.021939.3890.3856.980.94
GC_Trib180RCH460 5587.44950fu378701.85704.84704.84705.660.02238.997852.440.93
GC_Trib180RCH460 5587.44925fu332701.85704.64704.64705.450.023678.8267.7447.980.95
GC_Trib180RCH460 5587.44910fu273701.85704.35704.35705.140.025678.5254.8941.310.97
GC_Trib180RCH460 5587.4495fu220701.85704.03704.03704.80.029338.2742.7333.811.01
GC_Trib180RCH460 5587.4492fu160701.85703.74703.74704.370.027767.2933.7429.990.96
GC_Trib180RCH460 5263.007100fu444696.45703.76703.780.000311.8536.08171.170.12
GC_Trib180RCH460 5263.00750fu378696.45702.41702.470.000792.47318.23152.140.19
GC_Trib180RCH460 5263.00725fu332696.45701.78701.860.001152.74231.17116.770.23
GC_Trib180RCH460 5263.00710fu273696.45700.92701.040.002083.2144.2485.980.29
GC_Trib180RCH460 5263.0075fu220696.45700.12700.30.003913.7386.7957.350.39
GC_Trib180RCH460 5263.0072fu160696.45699.23699.490.008674.3446.3537.610.54
GC_Trib180RCH460 5178.48100fu444694.72703.61699703.720.000813.14201.19189.510.19
GC_Trib180RCH460 5178.4850fu378694.72702.23698.62702.370.001193.4158.59173.190.22
GC_Trib180RCH460 5178.4825fu332694.72701.6698.32701.740.001363.41138.84158.280.24
GC_Trib180RCH460 5178.4810fu273694.72700.73697.91700.880.001683.45111.96140.690.26
GC_Trib180RCH460 5178.485fu220694.72699.89697.52700.050.002213.5485.8113.270.29
GC_Trib180RCH460 5178.482fu160694.72698.84697.03699.030.003313.6754.3826.730.34
GC_Trib180RCH460 4900Culvert
GC_Trib180RCH460 4835.127100fu444689.2691.58690.94691.880.008764.57104.5575.480.55
GC_Trib180RCH460 4835.12750fu378689.2691.37690.82691.650.009194.3692.771.810.56
GC_Trib180RCH460 4835.12725fu332689.2691.22690.7691.480.00954.284.3369.160.56
GC_Trib180RCH460 4835.12710fu273689.2691.22690.57691.40.006373.4484.5669.230.46
GC_Trib180RCH460 4835.1275fu220689.2690.93690.43691.10.007893.3968.6964.090.49
GC_Trib180RCH460 4835.1272fu160689.2690.75690.25690.870.006632.8559.2161.040.44
GC_Trib180RCH460 4676.71100fu444686.35689.88690.410.009146.0291.150.670.65
GC_Trib180RCH460 4676.7150fu378686.35689.63690.120.009465.7478.9746.960.65
GC_Trib180RCH460 4676.7125fu332686.35689.44689.890.009855.5470.1944.230.66
D- 44
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib180RCH460 4676.7110fu273686.35688.76688.76689.470.024336.8243.0535.430.97
GC_Trib180RCH460 4676.715fu220686.35688.72688.55689.210.017545.6741.4534.840.82
GC_Trib180RCH460 4676.712fu160686.35688.29688.29688.820.029165.8527.8329.361
GC_Trib180RCH460 4330.08100fu1667682.54688.23687.43688.690.004296.28406.93182.450.5
GC_Trib180RCH460 4330.0850fu1408682.54687.88687.1688.330.004486.11345.04162.910.5
GC_Trib180RCH460 4330.0825fu1219682.54687.59686.38688.040.004665.97300.04153.030.51
GC_Trib180RCH460 4330.0810fu991682.54687.58687.880.003134.88298.03152.570.41
GC_Trib180RCH460 4330.085fu788682.54686.94687.310.004265.12207.54130.380.47
GC_Trib180RCH460 4330.082fu561682.54686.45686.730.003794.38159.7878.820.43
GC_Trib180RCH460 3783.417100fu1667676683.37684.810.0153113.3278.38175.280.93
GC_Trib180RCH460 3783.41750fu1408676683.24684.520.013412.27255.23169.280.86
GC_Trib180RCH460 3783.41725fu1219676683.12684.290.01211.47236.16164.180.81
GC_Trib180RCH460 3783.41710fu991676682.63681.88684.50.0173113.03161.09142.30.96
GC_Trib180RCH460 3783.4175fu788676682.63681.81683.810.0109810.38160.82142.220.77
GC_Trib180RCH460 3783.4172fu561676682.17681.58683.430.01099.78100.37121.770.75
GC_Trib180RCH460 3393.516100fu1667673.5680.3679.94680.710.006937.91392.78203.190.59
GC_Trib180RCH460 3393.51650fu1408673.5680.04679.78680.460.007638.04339.44197.020.62
GC_Trib180RCH460 3393.51625fu1219673.5679.81679.62680.260.008378.17295.64186.880.64
GC_Trib180RCH460 3393.51610fu991673.5679.68680.050.006937.31271.79180.590.58
GC_Trib180RCH460 3393.5165fu788673.5679.3679.770.009017.9206.16161.990.65
GC_Trib180RCH460 3393.5162fu561673.5678.99678.99679.460.008617.37158.71145.630.63
GC_Trib180RCH460 2910.425100fu1667668675.57675.57676.850.0095810.82320.14140.030.75
GC_Trib180RCH460 2910.42550fu1408668675.2675.2676.430.0094210.31269.62133.770.74
GC_Trib180RCH460 2910.42525fu1219668674.91674.91676.090.009179.85231.68128.080.72
GC_Trib180RCH460 2910.42510fu991668674.09673.76675.590.0128510.53134.01105.520.83
GC_Trib180RCH460 2910.4255fu788668673.64673.22674.870.011679.42110.7638.520.78
GC_Trib180RCH460 2910.4252fu561668673.2672.44674.020.008647.5894.6635.620.66
GC_Trib180RCH460 2626.506100fu1667663.58669.66669.66670.740.0117111.36357.32148.80.84
GC_Trib180RCH460 2626.50650fu1408663.58669.39669.39670.390.0110310.68318.13144.370.8
GC_Trib180RCH460 2626.50625fu1219663.58669.17669.17670.120.0105310.15286.74140.720.78
GC_Trib180RCH460 2626.50610fu991663.58668.88668.88669.740.00989.42246.09135.390.75
GC_Trib180RCH460 2626.5065fu788663.58668.55668.55669.360.00938.77202.54128.370.72
GC_Trib180RCH460 2626.5062fu561663.58667.8667.8668.70.011438.64119.5582.550.77
GC_Trib180RCH460 2229.781100fu1667659.48666.55667.180.003826.69324.0177.650.48
GC_Trib180RCH460 2229.78150fu1408659.48666666.570.003916.36281.8375.460.48
GC_Trib180RCH460 2229.78125fu1219659.48665.57666.10.003986.07249.8871.890.48
GC_Trib180RCH460 2229.78110fu991659.48665.01665.480.004045.65211.0567.250.47
GC_Trib180RCH460 2229.7815fu788659.48664.41664.830.004285.29172.5461.60.47
GC_Trib180RCH460 2229.7812fu561659.48663.55663.930.005284.97122.9652.870.5
GC_Trib180RCH460 1982.297100fu1667657.18663.4663.4665.370.0150211.87183.0654.420.92
GC_Trib180RCH460 1982.29750fu1408657.18662.89662.89664.730.0157311.34156.6250.530.93
GC_Trib180RCH460 1982.29725fu1219657.18662.5662.5664.220.0163710.91137.2347.420.93
GC_Trib180RCH460 1982.29710fu991657.18661.96661.96663.540.017710.36112.8843.040.95
D- 45
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib180RCH460 1982.2975fu788657.18661.56661.47662.870.016879.3796.23400.91
GC_Trib180RCH460 1982.2972fu561657.18661.45660.82662.170.009616.9292.0339.190.68
GC_Trib180RCH460 1407.486100fu2052651.9656.3655.67656.460.003834.07654.5485.530.41
GC_Trib180RCH460 1407.48650fu1730651.9656.08655.46656.250.004884.36546.14483.570.46
GC_Trib180RCH460 1407.48625fu1500651.9655.75655.36655.970.007134.85408.63385.520.54
GC_Trib180RCH460 1407.48610fu1216651.9655.53655.21655.750.008184.88326.44334.350.57
GC_Trib180RCH460 1407.4865fu965651.9655.28655.09655.520.009444.89252.39276.330.6
GC_Trib180RCH460 1407.4862fu683651.9654.93654.89655.230.013925.64165.97225.030.72
GC_Trib180RCH460 1001.202100fu2052646.97653.2653.2654.120.009239.21316.42173.330.72
GC_Trib180RCH460 1001.20250fu1730646.97653.12652.92653.830.007258.07302.57167.760.63
GC_Trib180RCH460 1001.20225fu1500646.97653.29652.7653.740.00446.44332.79179.690.5
GC_Trib180RCH460 1001.20210fu1216646.97652.94652.35653.370.004456.18274.19155.720.49
GC_Trib180RCH460 1001.2025fu965646.97652.59651.886530.00445.85223.28133.730.48
GC_Trib180RCH460 1001.2022fu683646.97652.13651.15652.480.004035.21167.92105.090.46
GC_Trib180RCH460 566.81100fu2052644.75651.49651.620.001363.61852.42354.460.28
GC_Trib180RCH460 566.8150fu1730644.75650.04650.630.007296.73374.9306.180.62
GC_Trib180RCH460 566.8125fu1500644.75649.17649.17650.280.017328.69203.43102.610.91
GC_Trib180RCH460 566.8110fu1216644.75648.83648.83649.830.018388.22168.8997.520.91
GC_Trib180RCH460 566.815fu965644.75648.48648.48649.40.020127.77135.4792.340.93
GC_Trib180RCH460 566.812fu683644.75647.94647.94648.80.026327.4491.8155.71.02
GC_Trib180RCH460 308.828100fu2052642.78651.47651.50.000161.691850.68405.310.1
GC_Trib180RCH460 308.82850fu1730642.78650.25650.280.000241.881381.72363.60.12
GC_Trib180RCH460 308.82825fu1500642.78649.33649.380.000342.051063.68327.720.15
GC_Trib180RCH460 308.82810fu1216642.78648.13648.190.000582.32712.22254.290.18
GC_Trib180RCH460 308.8285fu965642.78646.99647.080.001122.72455.48200.630.24
GC_Trib180RCH460 308.8282fu683642.78645.57645.750.00353.53217.84124.760.4
GC_Trib180RCH460 223.057100fu2052640.14651.12645.55651.40.000914.69588.01413.440.25
GC_Trib180RCH460 223.05750fu1730640.14649.92645650.180.001014.55509.89306.980.26
GC_Trib180RCH460 223.05725fu1500640.14649.01644.59649.270.001094.44451.02301.070.27
GC_Trib180RCH460 223.05710fu1216640.14647.82644.07648.070.001254.31373.84286.960.28
GC_Trib180RCH460 223.0575fu965640.14646.69643.51646.930.001484.19300.18232.650.29
GC_Trib180RCH460 223.0572fu683640.14645.27642.83645.510.001984.09207.7483.040.33
GC_Trib180RCH460 175Culvert
GC_Trib180RCH460 117.825100fu2052639.31646.67644.85647.430.004757.43347.54378.890.51
GC_Trib180RCH460 117.82550fu1730639.31646.11644.39646.790.004756.99308.44347.980.5
GC_Trib180RCH460 117.82525fu1500639.31645.67643.99646.30.004756.65278.56321.310.5
GC_Trib180RCH460 117.82510fu1216639.31645.09643.51645.640.004756.17238.45281.810.49
GC_Trib180RCH460 117.8255fu965639.31644.52643.016450.004765.69198.96255.060.48
GC_Trib180RCH460 117.8252fu683639.31643.77642.21644.150.004755.01150.6170.050.46
GC_Trib175RCH400 4890.15100fu1374675.49681.41681.41682.370.0166410.49251.35119.160.84
GC_Trib175RCH400 4890.1550fu1139675.49681.11681.11682.020.016449.99216.41111.060.82
GC_Trib175RCH400 4890.1525fu1027675.49680.93680.93681.840.016579.78197.74106.480.82
D- 46
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib175RCH400 4890.1510fu852675.49680.67680.67681.520.016089.25170.7899.50.8
GC_Trib175RCH400 4890.155fu648675.49680.33680.33681.090.01518.46137.8490.240.77
GC_Trib175RCH400 4890.152fu414675.49679.74679.74680.440.015057.5490.8469.30.74
GC_Trib175RCH400 4482.77100fu1374668675.03675.03676.220.012229.44223.74124.870.73
GC_Trib175RCH400 4482.7750fu1139668674.54674.54675.780.013489.28168.45101.590.76
GC_Trib175RCH400 4482.7725fu1027668674.23673.81675.520.014789.29139.5786.980.78
GC_Trib175RCH400 4482.7710fu852668673.71673.35674.890.015978.87108.643.450.8
GC_Trib175RCH400 4482.775fu648668673.12672.7674.130.016688.1285.1336.360.79
GC_Trib175RCH400 4482.772fu414668672.5671.88673.150.014046.4864.8928.870.7
GC_Trib175RCH400 4145.759100fu1374663.01669.05669.05670.340.0154810.2225.03113.740.83
GC_Trib175RCH400 4145.75950fu1139663.01668.52668.52669.860.0178910.12171.0587.90.87
GC_Trib175RCH400 4145.75925fu1027663.01668.09668669.560.0220110.44137.8767.260.95
GC_Trib175RCH400 4145.75910fu852663.01667.85667.83669.050.019339.37122.9960.520.88
GC_Trib175RCH400 4145.7595fu648663.01667.48667.33668.430.017348.24101.6154.490.82
GC_Trib175RCH400 4145.7592fu414663.01666.72666.59667.530.020157.3964.9442.210.84
GC_Trib175RCH400 3800.321100fu1374657.01663.55663.55664.490.012588.91253.6144.730.73
GC_Trib175RCH400 3800.32150fu1139657.01663.29663.29664.160.011898.33217.21137.820.7
GC_Trib175RCH400 3800.32125fu1027657.01663.15663.15663.990.011618.05197.8133.990.69
GC_Trib175RCH400 3800.32110fu852657.01662.81662.81663.680.012427.88154.36122.40.71
GC_Trib175RCH400 3800.3215fu648657.01662.31661.71663.150.013457.47103.2883.870.72
GC_Trib175RCH400 3800.3212fu414657.01661.66660.94662.230.011796.0768.8727.880.65
GC_Trib175RCH400 3409.147100fu1374651.76657.3657.3658.410.0160610.1242.02111.830.84
GC_Trib175RCH400 3409.14750fu1139651.76656.98656.98658.010.015769.53207.26104.690.82
GC_Trib175RCH400 3409.14725fu1027651.76656.57657.840.0208810.25166.7195.610.93
GC_Trib175RCH400 3409.14710fu852651.76656.51656.51657.440.015638.76160.4494.120.8
GC_Trib175RCH400 3409.1475fu648651.76655.92655.92656.90.01928.65109.7968.980.86
GC_Trib175RCH400 3409.1472fu414651.76655.22655.22656.090.021687.7868.0751.330.88
GC_Trib175RCH400 2782.266100fu1374645.22650.49650.980.007736.38336.97157.390.57
GC_Trib175RCH400 2782.26650fu1139645.22650.18650.630.007595.98289.66148.260.56
GC_Trib175RCH400 2782.26625fu1027645.22650.01650.440.007595.79265.1143.30.56
GC_Trib175RCH400 2782.26610fu852645.22649.74650.120.007285.37228.78131.410.54
GC_Trib175RCH400 2782.2665fu648645.22649.39649.70.00694.82184.33117.710.51
GC_Trib175RCH400 2782.2662fu414645.22648.87649.10.006384.03128.6897.90.48
GC_Trib175RCH400 2530.068100fu1374642.99647.68647.68648.460.017279.33307.74179.370.85
GC_Trib175RCH400 2530.06850fu1139642.99647.48647.48648.190.015968.66273.33175.760.81
GC_Trib175RCH400 2530.06825fu1027642.99647.39647.39648.050.015038.26257.38174.060.78
GC_Trib175RCH400 2530.06810fu852642.99647.2647.2647.810.014267.75224.83170.450.75
GC_Trib175RCH400 2530.0685fu648642.99646.95646.95647.50.013197.06181.98164.490.71
GC_Trib175RCH400 2530.0682fu414642.99646.57646.57647.050.011686.09121.92155.350.66
GC_Trib175RCH400 2413.045100fu1374640.17647.28645.28647.460.001634.21624.62359.210.31
GC_Trib175RCH400 2413.04550fu1139640.17647.18644.8647.320.001263.66589.66354.450.27
GC_Trib175RCH400 2413.04525fu1027640.17647.11644.58647.240.001113.42565.74351.190.25
GC_Trib175RCH400 2413.04510fu852640.17647.07644.2647.160.000812.9550.71349.280.22
D- 47
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib175RCH400 2413.0455fu648640.17646.82643.71646.890.000642.51465.16338.20.19
GC_Trib175RCH400 2413.0452fu414640.17646.58643.02646.620.000361.82383.37326.360.14
GC_Trib175RCH400 2380Culvert
GC_Trib175RCH400 2352.746100fu1374639.68645.65645.39646.140.006616.66396.19262.780.58
GC_Trib175RCH400 2352.74650fu1139639.68645.37645.17645.870.006726.45325.85249.270.58
GC_Trib175RCH400 2352.74625fu1027639.68645.23645.02645.720.006736.32291.25242.340.58
GC_Trib175RCH400 2352.74610fu852639.68644.64644.64646.850.0185411.9371.39192.81
GC_Trib175RCH400 2352.7465fu648639.68644.39643.88645.830.012979.6167.43109.060.82
GC_Trib175RCH400 2352.7462fu414639.68644.18642.93644.830.006316.4763.9681.360.57
GC_Trib175RCH400 2151.526100fu1374640.01644.51644.870.006866.67445.38216.450.6
GC_Trib175RCH400 2151.52650fu1139640.01644.34644.650.005815.96410.77211.460.54
GC_Trib175RCH400 2151.52625fu1027640.01644.28644.540.005175.56396.61209.290.51
GC_Trib175RCH400 2151.52610fu852640.01644.19644.390.004024.82377.84205.880.45
GC_Trib175RCH400 2151.5265fu648640.01644.11644.230.002613.82361.12202.80.36
GC_Trib175RCH400 2151.5262fu414640.01644.04644.10.001172.53348.31200.40.24
GC_Trib175RCH400 1780.234100fu1374639.97644642.58644.090.001122.55597.76251.30.24
GC_Trib175RCH400 1780.23450fu1139639.97644642.44644.060.000772.12597.76251.30.2
GC_Trib175RCH400 1780.23425fu1027639.97644642.36644.050.000621.91597.76251.30.18
GC_Trib175RCH400 1780.23410fu852639.97644641.93644.030.000431.58597.76251.30.15
GC_Trib175RCH400 1780.2345fu648639.97644641.66644.020.000251.2597.76251.30.11
GC_Trib175RCH400 1780.2342fu414639.97644641.31644.010.00010.77597.76251.30.07
GC_Trib170RCH390 2227.843100fu523633.56638.59638639.560.014059.5100.7347.140.78
GC_Trib170RCH390 2227.84350fu442633.56638.43637.83639.210.011678.4593.4243.520.71
GC_Trib170RCH390 2227.84325fu387633.56638.17637.56638.880.011297.9983.0837.80.69
GC_Trib170RCH390 2227.84310fu315633.56637.84637.2638.430.010287.2271.6632.780.65
GC_Trib170RCH390 2227.8435fu252633.56637.5636.85638.010.009716.5960.8830.260.62
GC_Trib170RCH390 2227.8432fu180633.56637.04636.37637.440.008895.7347.6726.80.58
GC_Trib170RCH390 1817.626100fu523629.22632.23632.23632.850.018727.11118.57101.240.82
GC_Trib170RCH390 1817.62650fu442629.22631.94631.93632.610.023367.2690.5181.090.9
GC_Trib170RCH390 1817.62625fu387629.22631.81631.81632.440.023186.9380.6475.550.88
GC_Trib170RCH390 1817.62610fu315629.22631.59631.59632.190.024956.6365.0465.950.9
GC_Trib170RCH390 1817.6265fu252629.22631.41631.41631.940.025326.1853.3260.210.89
GC_Trib170RCH390 1817.6262fu180629.22631.15631.14631.610.026245.5739.1652.440.88
GC_Trib170RCH390 1509.111100fu523621.68625.44626.30.020689.18105.9164.710.9
GC_Trib170RCH390 1509.11150fu442621.68625.21626.020.020818.7791.5760.880.89
GC_Trib170RCH390 1509.11125fu387621.68625.05625.820.020728.4381.7557.760.88
GC_Trib170RCH390 1509.11110fu315621.68624.82624.76625.510.019857.869.1952.110.85
GC_Trib170RCH390 1509.1115fu252621.68624.59624.54625.20.019097.1957.8147.750.82
GC_Trib170RCH390 1509.1112fu180621.68624.24624.16624.780.019456.5242.2139.990.81
GC_Trib170RCH390 1335.669100fu523619.48622.84622.44623.380.012946.08103.5862.480.69
GC_Trib170RCH390 1335.66950fu442619.48622.64622.21623.110.012815.791.0658.960.67
GC_Trib170RCH390 1335.66925fu387619.48622.48622.07622.920.012815.4382.0356.290.67
D- 48
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib170RCH390 1335.66910fu315619.48622.24621.84622.630.013085.0669.3551.880.66
GC_Trib170RCH390 1335.6695fu252619.48622.02621.64622.350.013364.6958.0947.410.65
GC_Trib170RCH390 1335.6692fu180619.48621.76621.39622.010.012434.0346.6442.410.61
GC_Trib170RCH390 1028.725100fu537614.53617.05617.05617.90.025618.3193.3259.880.96
GC_Trib170RCH390 1028.72550fu453614.53616.84616.84617.620.026137.8981.3156.970.96
GC_Trib170RCH390 1028.72525fu396614.53616.7616.7617.420.026217.5473.2854.930.95
GC_Trib170RCH390 1028.72510fu305614.53616.44616.44617.070.026846.9459.4951.240.94
GC_Trib170RCH390 1028.7255fu226614.53616.18616.18616.720.027866.3346.6147.540.93
GC_Trib170RCH390 1028.7252fu174614.53615.98615.98616.460.028955.8537.4944.50.92
GC_Trib170RCH390 946.546100fu537611.16616.69615.08616.770.001062.61312.41198.460.22
GC_Trib170RCH390 946.54650fu453611.16616.58614.74616.640.000882.33290.74186.180.2
GC_Trib170RCH390 946.54625fu396611.16616.51614.48616.560.000722.08277.96172.760.18
GC_Trib170RCH390 946.54610fu305611.16616.34614.06616.370.000531.74249.95158.720.15
GC_Trib170RCH390 946.5465fu226611.16616.12613.66616.140.00041.47215.84146.670.13
GC_Trib170RCH390 946.5462fu174611.16615.97613.35615.980.00031.23194.84134.120.11
GC_Trib170RCH390 925Culvert
GC_Trib170RCH390 905.447100fu537610.88613.38613.38614.540.024548.4262.4536.430.95
GC_Trib170RCH390 905.44750fu453610.88613.17613.17614.170.024327.8956.5633.750.93
GC_Trib170RCH390 905.44725fu396610.88612.98612.98613.910.025567.6351.4132.650.94
GC_Trib170RCH390 905.44710fu305610.88612.68612.68613.470.027297.094330.860.95
GC_Trib170RCH390 905.4475fu226610.88612.4612.4613.050.02896.4735.0929.360.95
GC_Trib170RCH390 905.4472fu174610.88612.18612.18612.730.03081629.2728.30.95
GC_Trib170RCH390 783.736100fu537606609.78609.78610.840.019138.8165.9930.920.87
GC_Trib170RCH390 783.73650fu453606609.49609.49610.50.020228.5157.4429.040.88
GC_Trib170RCH390 783.73625fu396606609.29609.29610.240.020948.2551.6527.690.88
GC_Trib170RCH390 783.73610fu305606608.93608.93609.780.022197.7342.2325.410.89
GC_Trib170RCH390 783.7365fu226606608.58608.58609.310.023777.1733.5523.170.9
GC_Trib170RCH390 783.7362fu174606608.3608.3608.960.025416.7127.4121.390.9
GC_Trib170RCH390 566.202100fu537603.91607.36607.530.003043.7167.4495.230.35
GC_Trib170RCH390 566.20250fu453603.91607.19607.340.002833.46152.0591.650.34
GC_Trib170RCH390 566.20225fu396603.91607.1607.220.002543.21143.4789.60.32
GC_Trib170RCH390 566.20210fu305603.91606.92607.020.002082.8127.8685.730.29
GC_Trib170RCH390 566.2025fu226603.91606.7606.770.001772.45109.280.860.26
GC_Trib170RCH390 566.2022fu174603.91606.49606.550.001622.2393.1376.430.25
GC_Trib170RCH390 500.989100fu537601.74607.31606.42607.370.000932.43327.59239.860.2
GC_Trib170RCH390 500.98950fu453601.74607.14606.31607.190.000942.38287.07229.660.2
GC_Trib170RCH390 500.98925fu396601.74607.05606.22607.090.000882.27265.55223.920.19
GC_Trib170RCH390 500.98910fu305601.74606.87604.97606.910.000782.08226.73213.190.18
GC_Trib170RCH390 500.9895fu226601.74606.64604.55606.680.000731.94180.18195.530.17
GC_Trib170RCH390 500.9892fu174601.74606.44604.26606.470.00071.84142.97168.610.17
GC_Trib170RCH390 475Culvert
D- 49
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib170RCH390 450.409100fu537601.07605.28605.02605.520.009035.12174.29110.880.56
GC_Trib170RCH390 450.40950fu453601.07605.29604.83605.460.006314.29175.52111.120.47
GC_Trib170RCH390 450.40925fu396601.07605.09604.7605.510.012775.7885.94106.870.66
GC_Trib170RCH390 450.40910fu305601.07604.82604.45605.160.012215.2273.1101.110.63
GC_Trib170RCH390 450.4095fu226601.07604.55604.2604.830.011624.6560.2695.350.6
GC_Trib170RCH390 450.4092fu174601.07604.34604604.580.011194.2150.3790.910.58
GC_Trib170RCH390 269.12100fu537600.66603.55602.94603.870.009354.7128.2476.040.57
GC_Trib170RCH390 269.1250fu453600.66603.35602.79603.640.009354.41113.7873.280.56
GC_Trib170RCH390 269.1225fu396600.66603.21602.67603.470.009354.19103.5871.270.56
GC_Trib170RCH390 269.1210fu305600.66602.96602.47603.180.009363.7986.4967.770.54
GC_Trib170RCH390 269.125fu226600.66602.72602.28602.90.009373.3870.564.320.53
GC_Trib170RCH390 269.122fu174600.66602.54602.15602.690.009353.0559.1761.50.51
GC_Trib165RCH410 4317.931100fu436681.49684.87684.87685.790.018887.8265.5447.960.91
GC_Trib165RCH410 4317.93150fu366681.49684.6684.6685.480.021137.653.2440.850.94
GC_Trib165RCH410 4317.93125fu318681.49684.4684.4685.240.022627.3745.8735.920.95
GC_Trib165RCH410 4317.93110fu255681.49684.13684.13684.890.02534736.9328.840.98
GC_Trib165RCH410 4317.9315fu200681.49683.86683.86684.540.028156.6330.1522.481.01
GC_Trib165RCH410 4317.9312fu140681.49683.5683.5684.090.029716.1622.7219.711.01
GC_Trib165RCH410 3938.561100fu436653.89657.38658.160.017329.27105.975.640.91
GC_Trib165RCH410 3938.56150fu366653.89657.26657.26657.920.014778.3597.3873.080.84
GC_Trib165RCH410 3938.56125fu318653.89657.11657.11657.740.01451886.6369.70.83
GC_Trib165RCH410 3938.56110fu255653.89656.88656.88657.480.014277.5271.3464.60.81
GC_Trib165RCH410 3938.5615fu200653.89656.68656.68657.210.013276.8858.5960.010.77
GC_Trib165RCH410 3938.5612fu140653.89655.91655.91656.970.035158.7521.5520.611.18
GC_Trib165RCH410 3547.055100fu436646.61650.09650.09651.210.01949.0166.2839.420.95
GC_Trib165RCH410 3547.05550fu366646.61650.56651.080.007596.2587.0149.580.61
GC_Trib165RCH410 3547.05525fu318646.61650.25650.770.008436.1672.6942.820.63
GC_Trib165RCH410 3547.05510fu255646.61649.76650.290.01076.1554.0334.620.69
GC_Trib165RCH410 3547.0555fu200646.61649.49649.06649.930.010155.5445.1331.520.66
GC_Trib165RCH410 3547.0552fu140646.61649.12648.7649.460.009884.8234.1227.220.63
GC_Trib165RCH410 3291.914100fu436642.71646.93646.93647.550.009637.44118.28113.80.69
GC_Trib165RCH410 3291.91450fu366642.71645.97645.97647.530.0310.664627.41.16
GC_Trib165RCH410 3291.91425fu318642.71645.87645.87647.180.026169.743.3626.681.08
GC_Trib165RCH410 3291.91410fu255642.71645.8645.8646.710.018798.0641.4426.150.91
GC_Trib165RCH410 3291.9145fu200642.71645.44645.44646.280.021037.6632.4823.350.94
GC_Trib165RCH410 3291.9142fu140642.71645.02645.02645.730.023196.9323.4919.950.95
GC_Trib165RCH410 3004.978100fu436635.54640.22639.93641.260.01578.2457.2427.450.83
GC_Trib165RCH410 3004.97850fu366635.54639.96639.61640.850.015087.650.7122.690.8
GC_Trib165RCH410 3004.97825fu318635.54639.76639.38640.550.014667.1346.3221.690.78
GC_Trib165RCH410 3004.97810fu255635.54639.48639.07640.120.013956.4440.4220.280.75
GC_Trib165RCH410 3004.9785fu200635.54639.17638.77639.70.013945.8534.4118.720.73
GC_Trib165RCH410 3004.9782fu140635.54638.71638.34639.150.015455.3326.2716.380.74
GC_Trib165RCH410 2561.773100fu436629.17632.45632.38633.250.020677.1962.7842.690.92
D- 50
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib165RCH410 2561.77350fu366629.17632.26632.16632.970.020996.7554.9937.970.91
GC_Trib165RCH410 2561.77325fu318629.17632.12632.01632.760.021236.449.8434.840.9
GC_Trib165RCH410 2561.77310fu255629.17631.89631.77632.450.02186642.5130.720.9
GC_Trib165RCH410 2561.7735fu200629.17631.67631.53632.150.021175.5635.9828.460.87
GC_Trib165RCH410 2561.7732fu140629.17631.44631.22631.780.017794.7429.5326.050.78
GC_Trib165RCH410 2224.472100fu436623.78627.03627.03627.470.013896.83136.23133.70.77
GC_Trib165RCH410 2224.47250fu366623.78626.91626.91627.320.013236.45120.32129.490.74
GC_Trib165RCH410 2224.47225fu318623.78626.82626.82627.210.012746.16108.41126.240.72
GC_Trib165RCH410 2224.47210fu255623.78626.68626.68627.050.011995.7391.25121.410.69
GC_Trib165RCH410 2224.4725fu200623.78626.52626.52626.880.011885.472.03115.760.68
GC_Trib165RCH410 2224.4722fu140623.78626.24626.24626.610.013315.1642.6192.740.7
GC_Trib165RCH410 1951.054100fu436619.93622.54622.29622.920.009215.61110.9697.140.64
GC_Trib165RCH410 1951.05450fu366619.93622.35621.96622.720.009665.4493.6385.190.65
GC_Trib165RCH410 1951.05425fu318619.93622.2621.88622.560.009975.2781.84760.65
GC_Trib165RCH410 1951.05410fu255619.93621.97621.67622.310.010625.0165.7855.80.66
GC_Trib165RCH410 1951.0545fu200619.93621.62621.476220.014895.1547.9148.220.75
GC_Trib165RCH410 1951.0542fu140619.93621.34621.19621.660.01624.6535.2342.060.76
GC_Trib165RCH410 1668.036100fu436614.82618.57618.4619.330.018287.0163.1134.550.87
GC_Trib165RCH410 1668.03650fu366614.82618.37618.19619.030.018236.5356.4233.240.85
GC_Trib165RCH410 1668.03625fu318614.82618.22618.03618.810.018186.1751.6732.280.84
GC_Trib165RCH410 1668.03610fu255614.82618.04617.8618.520.017195.5645.8931.080.8
GC_Trib165RCH410 1668.0365fu200614.82618.01617.54618.320.011344.4544.9330.870.65
GC_Trib165RCH410 1668.0362fu140614.82617.66617.2617.910.010884.0134.927.090.62
GC_Trib165RCH410 1410.773100fu436611.52615.01614.8615.590.011536.3689.4278.720.72
GC_Trib165RCH410 1410.77350fu366611.52614.82615.340.011335.9775.4767.990.7
GC_Trib165RCH410 1410.77325fu318611.52614.66615.150.011315.6965.4459.690.69
GC_Trib165RCH410 1410.77310fu255611.52614.38613.99614.820.012145.3650.8745.420.7
GC_Trib165RCH410 1410.7735fu200611.52613.87613.73614.410.021125.8834.0124.550.88
GC_Trib165RCH410 1410.7732fu140611.52613.48613.37613.960.022985.5825.0820.870.9
GC_Trib165RCH410 1182.351100fu436607.73611.39611.39612.350.017488.1968.4544.970.89
GC_Trib165RCH410 1182.35150fu366607.73611.11611.11612.030.018927.956.3840.280.9
GC_Trib165RCH410 1182.35125fu318607.73610.91610.89611.780.01977.6148.8236.510.91
GC_Trib165RCH410 1182.35110fu255607.73610.69610.6611.410.018556.8841.3532.370.87
GC_Trib165RCH410 1182.3515fu200607.73610.77610.29611.170.009955.1743.8733.820.64
GC_Trib165RCH410 1182.3512fu140607.73610.43609.94610.730.009324.4333.4927.340.6
GC_Trib165RCH410 882.765100fu436603.49606.59606.59606.960.013595.64151.13216.850.74
GC_Trib165RCH410 882.76550fu366603.49606.48606.48606.830.013575.39127.02209.550.73
GC_Trib165RCH410 882.76525fu318603.49606.38606.38606.740.013765.23108.04199.170.73
GC_Trib165RCH410 882.76510fu255603.49606.26606.26606.590.01354.983.69183.610.71
GC_Trib165RCH410 882.7655fu200603.49605.84605.84606.40.029366.0233.2329.811
GC_Trib165RCH410 882.7652fu140603.49605.53605.53606.030.031455.6524.7625.691.01
GC_Trib165RCH410 688.884100fu436601.56605.13605.190.000822.11328.16188.470.2
GC_Trib165RCH410 688.88450fu366601.56604.77604.830.000942.1262.75176.940.21
D- 51
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib165RCH410 688.88425fu318601.56604.47604.530.001122.13210.58166.810.23
GC_Trib165RCH410 688.88410fu255601.56603.98604.050.001632.25131.31110.080.27
GC_Trib165RCH410 688.8845fu200601.56603.66603.730.001652.04108.9768.490.26
GC_Trib165RCH410 688.8842fu140601.56603.3603.350.00171.884.6564.20.26
GC_Trib165RCH410 539.47100fu930599.93604.84604.990.001533.21337.43143.560.29
GC_Trib165RCH410 539.4750fu767599.93604.51604.640.001422.92293.79122.590.27
GC_Trib165RCH410 539.4725fu650599.93604.23604.340.001362.7261.53104.690.26
GC_Trib165RCH410 539.4710fu484599.93603.77603.850.001252.34218.2388.530.24
GC_Trib165RCH410 539.475fu391599.93603.46603.530.00122.13191.4585.410.24
GC_Trib165RCH410 539.472fu298599.93603.09603.150.001181.91161.0381.710.23
GC_Trib165RCH410 310.724100fu930599.88604.46604.630.001633.39332.27198.610.3
GC_Trib165RCH410 310.72450fu767599.88604.14604.290.00163.18270.71179.750.29
GC_Trib165RCH410 310.72425fu650599.88603.88604.010.001482.92235.2779.690.28
GC_Trib165RCH410 310.72410fu484599.88603.47603.560.001272.48202.9475.910.25
GC_Trib165RCH410 310.7245fu391599.88603.18603.260.001152.22181.7973.340.23
GC_Trib165RCH410 310.7242fu298599.88602.84602.90.001041.93157.1470.230.22
GC_Trib165RCH410 97.811100fu930597.79604.22601.39604.350.000973.19430.75492.450.24
GC_Trib165RCH410 97.81150fu767597.79603.94601.03604.040.000742.7314.6883.110.21
GC_Trib165RCH410 97.81125fu650597.79603.71600.75603.790.000642.42295.3280.980.19
GC_Trib165RCH410 97.81110fu484597.79603.33600.31603.390.000481.99265.2977.550.16
GC_Trib165RCH410 97.8115fu391597.79603.07600.05603.110.000391.73245.1775.420.15
GC_Trib165RCH410 97.8112fu298597.79602.74599.77602.770.000311.45221.2172.870.13
GC_Trib165RCH410 75Culvert
GC_Trib165RCH410 55.871100fu930597.6601.41600.75601.870.00565.82178.7975.620.54
GC_Trib165RCH410 55.87150fu767597.6601.09600.4601.50.005595.47155.4470.250.53
GC_Trib165RCH410 55.87125fu650597.6600.83600.13601.20.00565.19137.7965.90.52
GC_Trib165RCH410 55.87110fu484597.6600.69599.74601.090.005615.0995.8563.550.52
GC_Trib165RCH410 55.8715fu391597.6600.35599.49600.690.00564.6984.2857.630.51
GC_Trib165RCH410 55.8712fu298597.6599.97599.19600.250.00564.2371.4751.550.5
GC_Trib100RCH350 17184.31100fu696669.58674.44674.690.003974.51207.7103.010.41
GC_Trib100RCH350 17184.3150fu594669.58673.56673.960.008035.42134.1971.580.55
GC_Trib100RCH350 17184.3125fu524669.58672.91673.530.016626.6391.758.740.77
GC_Trib100RCH350 17184.3110fu432669.58672.46672.46673.210.025657.1566.9950.190.92
GC_Trib100RCH350 17184.315fu350669.58672.22672.22672.910.027466.7855.7345.770.94
GC_Trib100RCH350 17184.312fu257669.58671.96671.92672.520.027076.0644.540.720.91
GC_Trib100RCH350 16874.29100fu696667.53674.49674.50.000141.09879.25333.490.08
GC_Trib100RCH350 16874.2950fu594667.53673.63673.650.000231.22632.23247.60.1
GC_Trib100RCH350 16874.2925fu524667.53673.01673.040.000341.36484.25234.320.12
GC_Trib100RCH350 16874.2910fu432667.53672.18672.210.000591.53317.44153.110.15
GC_Trib100RCH350 16874.295fu350667.53671.41671.460.001091.72215.8122.890.2
GC_Trib100RCH350 16874.292fu257667.53670.56670.620.002382.01128.2482.60.28
GC_Trib100RCH350 16689.19100fu696665.72674.4669.55674.450.000392.04841.62440.050.14
D- 52
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib100RCH350 16689.1950fu594665.72673.46669.23673.560.000682.46251.93273.790.18
GC_Trib100RCH350 16689.1925fu524665.72672.84668.95672.930.000772.43224.36243.190.19
GC_Trib100RCH350 16689.1910fu432665.72671.97668.57672.060.000952.4186.12114.710.2
GC_Trib100RCH350 16689.195fu350665.72671.14668.26671.230.001262.4149.5965.460.22
GC_Trib100RCH350 16689.192fu257665.72670.1667.85670.20.00212.48104.1944.770.27
GC_Trib100RCH350 16650Culvert
GC_Trib100RCH350 16625.99100fu696665.2669.67668.02669.940.003914.43174.8386.490.38
GC_Trib100RCH350 16625.9950fu594665.2669.35667.79669.580.003844.17159.380.650.37
GC_Trib100RCH350 16625.9925fu524665.2669.11667.63669.320.003823.98147.5976.250.37
GC_Trib100RCH350 16625.9910fu432665.2668.75667.41668.940.003853.73130.3770.180.36
GC_Trib100RCH350 16625.995fu350665.2668.39667.16668.560.003933.49113.2264.240.36
GC_Trib100RCH350 16625.992fu257665.2667.93666.84668.070.00413.1991.2454.450.36
GC_Trib100RCH350 16492.62100fu696664.18668.77669.230.006175.65144.6765.030.51
GC_Trib100RCH350 16492.6250fu594664.18668.5668.90.005885.25128.5855.170.49
GC_Trib100RCH350 16492.6225fu524664.18668.29668.660.005694.96117.7250.240.48
GC_Trib100RCH350 16492.6210fu432664.18667.98668.290.005444.55103.2243.790.46
GC_Trib100RCH350 16492.625fu350664.18667.64667.910.005514.2288.5741.190.45
GC_Trib100RCH350 16492.622fu257664.18667.19667.410.005663.7970.8437.810.45
GC_Trib100RCH350 16090.76100fu696660.5665.75665.41666.30.009036.43133.1388.60.6
GC_Trib100RCH350 16090.7650fu594660.5665.54665.03666.060.008846.12116.0778.750.59
GC_Trib100RCH350 16090.7625fu524660.5665.38664.61665.870.008715.88103.9270.910.58
GC_Trib100RCH350 16090.7610fu432660.5665.12664.29665.570.008635.5387.0158.260.57
GC_Trib100RCH350 16090.765fu350660.5664.86663.99665.250.008125.0573.6744.660.54
GC_Trib100RCH350 16090.762fu257660.5664.47663.57664.780.007654.4259.632.50.51
GC_Trib100RCH350 15742.93100fu696657.27661.05661.05661.890.018188.41105.8261.670.84
GC_Trib100RCH350 15742.9350fu594657.27660.81660.81661.630.019118.1891.956.690.85
GC_Trib100RCH350 15742.9325fu524657.27660.64660.64661.430.019657.9682.5653.180.86
GC_Trib100RCH350 15742.9310fu432657.27660.41660.41661.140.020017.5570.6848.520.85
GC_Trib100RCH350 15742.935fu350657.27660.14660.14660.840.021677.2758.3443.140.87
GC_Trib100RCH350 15742.932fu257657.27659.81659.81660.440.023136.7345.1137.380.87
GC_Trib100RCH350 14850.75100fu753645.82650.72651.30.00876.17128.4958.830.64
GC_Trib100RCH350 14850.7550fu643645.82650.52651.020.008245.72116.7155.690.61
GC_Trib100RCH350 14850.7525fu568645.82650.36650.810.00795.38108.3853.230.59
GC_Trib100RCH350 14850.7510fu469645.82650.14650.510.007374.899749.350.56
GC_Trib100RCH350 14850.755fu381645.82649.93650.230.006694.3887.1142.810.53
GC_Trib100RCH350 14850.752fu280645.82649.57649.80.005843.8472.8337.580.49
GC_Trib100RCH350 14138.41100fu753639.21643.8644.50.010586.75114.4145.990.7
GC_Trib100RCH350 14138.4150fu643639.21643.48642.97644.130.011486.5100.2543.630.72
GC_Trib100RCH350 14138.4125fu568639.21643.25642.79643.870.012316.3290.4341.850.73
GC_Trib100RCH350 14138.4110fu469639.21642.93642.55643.50.013726.0577.5339.40.75
GC_Trib100RCH350 14138.415fu381639.21642.57642.28643.120.016275.9963.6136.70.8
GC_Trib100RCH350 14138.412fu280639.21642.08641.94642.640.02102646.6432.690.89
D- 53
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib100RCH350 13724.8100fu753635.18640.95639.29641.490.005165.95129.2638.440.51
GC_Trib100RCH350 13724.850fu643635.18640.62638.94641.090.004975.54117.1834.80.49
GC_Trib100RCH350 13724.825fu568635.18640.37638.71640.790.004845.23108.8731.40.48
GC_Trib100RCH350 13724.810fu469635.18640.01638.36640.360.004644.7898.0229.190.46
GC_Trib100RCH350 13724.85fu381635.18639.59638.04639.890.004424.4386.0227.840.44
GC_Trib100RCH350 13724.82fu280635.18639.02637.62639.270.004123.9570.8926.050.42
GC_Trib100RCH350 13199.59100fu753631.9635.33635.33636.420.023488.3590.1442.121
GC_Trib100RCH350 13199.5950fu643631.9635.08635.08636.090.024448.0879.5839.951.01
GC_Trib100RCH350 13199.5925fu568631.9634.89634.89635.850.024957.8572.3238.51.01
GC_Trib100RCH350 13199.5910fu469631.9634.63634.63635.50.02577.5162.4936.441.01
GC_Trib100RCH350 13199.595fu381631.9634.37634.37635.160.026497.1353.4234.421.01
GC_Trib100RCH350 13199.592fu280631.9634.04634.04634.720.027616.5942.4731.821.01
GC_Trib100RCH350 12795.32100fu753628.5635.87635.875.9E-050.841203.91364.590.06
GC_Trib100RCH350 12795.3250fu643628.5635.67635.675.2E-050.771131.68358.880.06
GC_Trib100RCH350 12795.3225fu568628.5635.47635.474.9E-050.731060.37353.270.05
GC_Trib100RCH350 12795.3210fu469628.5634.67634.678.3E-050.86786.3331.430.07
GC_Trib100RCH350 12795.325fu381628.5633.7633.720.000231.23481.98294.730.11
GC_Trib100RCH350 12795.322fu280628.5632.52632.590.001532.51175.46222.530.27
GC_Trib100RCH350 12620.85100fu866627.32635.86630.43635.873.5E-050.751788.45492.130.05
GC_Trib100RCH350 12620.8550fu738627.32635.66630.19635.670.000030.691690.92487.240.04
GC_Trib100RCH350 12620.8525fu650627.32635.46630.02635.472.8E-050.651594.08479.830.04
GC_Trib100RCH350 12620.8510fu536627.32634.58629.76634.640.000271.86288.63453.250.13
GC_Trib100RCH350 12620.855fu433627.32633.62629.45633.670.00031.77245.18400.70.13
GC_Trib100RCH350 12620.852fu317627.32632.43629.09632.470.000361.66191.81280.510.14
GC_Trib100RCH350 12600Culvert
GC_Trib100RCH350 12549.21100fu866626.96630.22630.22631.580.020099.3995.87159.020.97
GC_Trib100RCH350 12549.2150fu738626.96629.95629.93631.160.020518.8885.5838.010.96
GC_Trib100RCH350 12549.2125fu650626.96629.93629.7630.890.016177.8685.137.920.85
GC_Trib100RCH350 12549.2110fu536626.96629.87629.41630.550.011936.6482.8237.460.73
GC_Trib100RCH350 12549.215fu433626.96629.72629.12630.220.00965.7277.1936.340.65
GC_Trib100RCH350 12549.212fu317626.96629.47628.75629.810.007364.6768.5834.560.56
GC_Trib100RCH350 12306.92100fu866624.43628.92628.75629.120.003884.65327.06368.670.44
GC_Trib100RCH350 12306.9250fu738624.43628.8628.67629.010.0044.61282.94360.450.44
GC_Trib100RCH350 12306.9225fu650624.43628.7628.6628.920.004144.6248.88353.980.45
GC_Trib100RCH350 12306.9210fu536624.43628.56627.72628.810.004384.59199.2337.110.46
GC_Trib100RCH350 12306.925fu433624.43628.37627.39628.640.004484.46145.69234.490.46
GC_Trib100RCH350 12306.922fu317624.43628.01627.01628.310.005174.3975.5755.670.48
GC_Trib100RCH350 11899.21100fu866622.2626.75626.64627.050.00555.26249.65275.070.52
GC_Trib100RCH350 11899.2150fu738622.2626.63626.55626.930.00555.12216.67266.590.51
GC_Trib100RCH350 11899.2125fu650622.2626.53625.86626.840.00555.02192.06260.090.51
GC_Trib100RCH350 11899.2110fu536622.2626.39625.59626.710.005514.86156.27250.320.51
GC_Trib100RCH350 11899.215fu433622.2626.23625.29626.550.005514.68116.88239.120.5
GC_Trib100RCH350 11899.212fu317622.2625.85624.9626.130.005514.2275.9136.330.49
D- 54
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 8926.285100fu695593.89601.65601.720.000632.89434.22145.610.19
GC_Trib10RCH190 8926.28550fu544593.89600.08600.260.00184.12227.25117.80.31
GC_Trib10RCH190 8926.28525fu486593.89599.52599.780.00274.68166.0999.590.38
GC_Trib10RCH190 8926.28510fu410593.89598.91599.270.003945.16111.9678.330.45
GC_Trib10RCH190 8926.2855fu335593.89598.45598.810.004385.0382.7510.46
GC_Trib10RCH190 8926.2852fu244593.89597.96598.230.003924.3363.5128.950.43
GC_Trib10RCH190 8646.762100fu695592.19601.45601.540.000632.7330.7378.610.18
GC_Trib10RCH190 8646.76250fu544592.19599.68599.820.00133.2206.2261.760.24
GC_Trib10RCH190 8646.76225fu486592.19598.97599.140.001823.44164.8654.560.28
GC_Trib10RCH190 8646.76210fu410592.19598.07598.280.002933.79119.7945.440.34
GC_Trib10RCH190 8646.7625fu335592.19597.26597.510.004694.0886.2237.210.42
GC_Trib10RCH190 8646.7622fu244592.19596.09596.460.011744.9249.6225.410.61
GC_Trib10RCH190 8592.118100fu695590.36601.28597601.470.001133.46200.7347.850.25
GC_Trib10RCH190 8592.11850fu544590.36599.42595.67599.690.002064.21129.0942.330.32
GC_Trib10RCH190 8592.11825fu486590.36598.69595.19598.980.002674.36111.5638.340.36
GC_Trib10RCH190 8592.11810fu410590.36597.72594.71598.060.004124.6488.4132.620.43
GC_Trib10RCH190 8592.1185fu335590.36596.73594.2597.140.007465.1864.6626.720.54
GC_Trib10RCH190 8592.1182fu244590.36595.52593.54595.980.006415.4245.0510.420.46
GC_Trib10RCH190 8548Culvert
GC_Trib10RCH190 8493.151100fu695589.44594.9594.9596.740.0195611.0167.1720.290.92
GC_Trib10RCH190 8493.15150fu544589.44594.2594.2595.880.0222410.4553.7617.730.96
GC_Trib10RCH190 8493.15125fu486589.44593.92593.92595.510.0233610.1548.8916.710.97
GC_Trib10RCH190 8493.15110fu410589.44593.51593.51594.990.025529.7542.4315.240.99
GC_Trib10RCH190 8493.1515fu335589.44593.1593.1594.420.026559.2336.4314.060.99
GC_Trib10RCH190 8493.1512fu244589.44592.51592.51593.640.028278.5328.612.581
GC_Trib10RCH190 8320.406100fu695585.14590.66590.25591.440.009817.47117.9465.830.69
GC_Trib10RCH190 8320.40650fu544585.14590.44591.020.007726.36104.6359.340.61
GC_Trib10RCH190 8320.40625fu486585.14590.24590.790.007866.1693.2353.140.61
GC_Trib10RCH190 8320.40610fu410585.14589.41589.23590.260.017027.4357.7434.080.85
GC_Trib10RCH190 8320.4065fu335585.14589.23588.89589.90.014956.6151.9230.510.78
GC_Trib10RCH190 8320.4062fu244585.14588.94588.47589.420.012765.5643.9624.810.71
GC_Trib10RCH190 7917.054100fu695580.48586.45586.45587.330.010368.62113.2382.080.71
GC_Trib10RCH190 7917.05450fu544580.48585.79585.79586.860.013938.9975.6637.930.81
GC_Trib10RCH190 7917.05425fu486580.48585.62585.62586.630.013668.6469.5435.840.79
GC_Trib10RCH190 7917.05410fu410580.48586.12585.22586.560.005385.989.554.640.51
GC_Trib10RCH190 7917.0545fu335580.48585.65586.120.006245.8770.6736.230.54
GC_Trib10RCH190 7917.0542fu244580.48584.98584.19585.450.007775.734927.650.58
GC_Trib10RCH190 7559.605100fu695578.3584.82585.040.002514.46230.4192.710.36
GC_Trib10RCH190 7559.60550fu544578.3584.62584.780.001883.75211.9588.90.31
GC_Trib10RCH190 7559.60525fu486578.3583.9584.150.003434.5151.3279.410.41
GC_Trib10RCH190 7559.60510fu410578.3582.49582.49583.320.017797.4962.5947.690.86
GC_Trib10RCH190 7559.6055fu335578.3582.45582.19583.030.012646.2460.8646.960.72
D- 55
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 7559.6052fu244578.3582.41581.62582.740.007164.6559.0646.20.54
GC_Trib10RCH190 7304.148100fu886575.3584.65584.740.000653.35462.71143.170.21
GC_Trib10RCH190 7304.14850fu727575.3584.48584.550.000492.88439.37139.980.18
GC_Trib10RCH190 7304.14825fu634575.3583.72583.810.000663.13339.08121.280.2
GC_Trib10RCH190 7304.14810fu521575.3581.55581.80.002394.7153.1656.880.36
GC_Trib10RCH190 7304.1485fu417575.3579.82580.430.00886.8875.8833.620.65
GC_Trib10RCH190 7304.1482fu296575.3578.66578.66579.590.02168.1741.8324.880.96
GC_Trib10RCH190 7193.067100fu886572.4584.57577.2584.670.000622.82469.59420.410.2
GC_Trib10RCH190 7193.06750fu727572.4584.37576.62584.490.000542.84365.55413.10.19
GC_Trib10RCH190 7193.06725fu634572.4583.54576.27583.720.00073.32190.9438.560.19
GC_Trib10RCH190 7193.06710fu521572.4581.41575.81581.60.001073.49149.3724.350.22
GC_Trib10RCH190 7193.0675fu417572.4579.7575.36579.90.001473.58116.5919.370.25
GC_Trib10RCH190 7193.0672fu296572.4578.05574.78578.230.001613.3987.2616.410.26
GC_Trib10RCH190 7155Culvert
GC_Trib10RCH190 7111.441100fu886572.29578.42577.07579.150.007176.85129.3937.190.59
GC_Trib10RCH190 7111.44150fu727572.29578.37576.59578.880.0055.69127.8736.790.49
GC_Trib10RCH190 7111.44125fu634572.29578.08576.27578.520.004735.34118.8334.040.48
GC_Trib10RCH190 7111.44110fu521572.29577.8575.87578.140.0044.72110.2932.540.43
GC_Trib10RCH190 7111.4415fu417572.29577.47575.46577.730.003414.15100.4430.830.4
GC_Trib10RCH190 7111.4412fu296572.29576.97574.93577.160.002713.4486.1628.280.35
GC_Trib10RCH190 6920.486100fu886570.89577.1577.570.008317.16204.85109.060.62
GC_Trib10RCH190 6920.48650fu727570.89576.33577.180.017339.01129.1188.090.87
GC_Trib10RCH190 6920.48625fu634570.89576.25576.25576.980.015048.26122.1185.150.81
GC_Trib10RCH190 6920.48610fu521570.89576576576.70.015587.96101.5375.780.81
GC_Trib10RCH190 6920.4865fu417570.89575.72575.72576.40.0167.5682.0966.930.81
GC_Trib10RCH190 6920.4862fu296570.89575.33575.33575.970.017037.0358.0954.020.81
GC_Trib10RCH190 6771.653100fu886570577.16577.210.000612.19590.9215.920.18
GC_Trib10RCH190 6771.65350fu727570576.57576.610.000732.19469.38193.170.19
GC_Trib10RCH190 6771.65325fu634570576.36576.40.000692.05429.94185.190.18
GC_Trib10RCH190 6771.65310fu521570575.79575.830.000852.11339.1123.990.2
GC_Trib10RCH190 6771.6535fu417570574.67574.750.002112.92209.63108.820.31
GC_Trib10RCH190 6771.6532fu296570573.9574.020.003953.56129.3597.240.41
GC_Trib10RCH190 6663.972100fu886569.31576.96577.130.001063.4300.22119.850.27
GC_Trib10RCH190 6663.97250fu727569.31576.36576.530.001163.26237.7491.930.28
GC_Trib10RCH190 6663.97225fu634569.31576.18576.320.001032.98221.8485.010.26
GC_Trib10RCH190 6663.97210fu521569.31575.61575.740.001162.86184.0957.220.27
GC_Trib10RCH190 6663.9725fu417569.31574.32574.520.003063.5911648.620.41
GC_Trib10RCH190 6663.9722fu296569.31573.33573.590.005424.172.1738.030.52
GC_Trib10RCH190 6510.281100fu1141568.41576.75576.970.000993.8326.9673.120.27
GC_Trib10RCH190 6510.28150fu953568.41576.17576.360.000983.55285.9567.820.27
GC_Trib10RCH190 6510.28125fu827568.41576.03576.180.000813.17276.4266.490.24
GC_Trib10RCH190 6510.28110fu670568.41575.47575.60.000782.89240.5561.470.23
D- 56
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 6510.2815fu530568.41574.03574.190.00163.27161.8747.650.31
GC_Trib10RCH190 6510.2812fu371568.41572.93573.10.002083.27113.6140.720.34
GC_Trib10RCH190 6403.758100fu1141567.8576.7576.870.000753.36409.49110.480.24
GC_Trib10RCH190 6403.75850fu953567.8576.11576.260.000773.19346.71101.240.24
GC_Trib10RCH190 6403.75825fu827567.8575.98576.10.000632.85333.4399.190.21
GC_Trib10RCH190 6403.75810fu670567.8575.41575.520.000622.63280.3488.190.21
GC_Trib10RCH190 6403.7585fu530567.8573.88574.030.001373.09171.7448.980.29
GC_Trib10RCH190 6403.7582fu371567.8572.75572.890.001693.07120.7940.740.31
GC_Trib10RCH190 6267.631100fu1141567576.75576.780.000191.45868.44215.120.12
GC_Trib10RCH190 6267.63150fu953567576.15576.180.000211.4739.86209.780.12
GC_Trib10RCH190 6267.63125fu827567576576.030.000181.26710.2208.50.11
GC_Trib10RCH190 6267.63110fu670567575.43575.450.00021.2592.4199.180.11
GC_Trib10RCH190 6267.6315fu530567573.8573.850.000931.8294.93145.040.22
GC_Trib10RCH190 6267.6312fu371567572.11572.380.013794.1888.8292.930.75
GC_Trib10RCH190 6160.701100fu1141566.36576.74576.760.000181.32911.43196.960.1
GC_Trib10RCH190 6160.70150fu953566.36576.13576.150.000181.24795.8184.910.1
GC_Trib10RCH190 6160.70125fu827566.36575.99576.010.000151.11770.3182.120.09
GC_Trib10RCH190 6160.70110fu670566.36575.41575.430.000151.02668.39170.50.09
GC_Trib10RCH190 6160.7015fu530566.36573.76573.780.000361.29412.15141.140.13
GC_Trib10RCH190 6160.7012fu371566.36572.02572.070.000891.83202.29100.590.23
GC_Trib10RCH190 6012.984100fu1141565.37576.38571.38576.650.000294.97418.44128.580.27
GC_Trib10RCH190 6012.98450fu953565.37575.81570.76576.050.000274.6338.29112.820.26
GC_Trib10RCH190 6012.98425fu827565.37575.74570.32575.930.000214.04331.61110.990.23
GC_Trib10RCH190 6012.98410fu670565.37575.2569.73575.360.000183.62282.4388.820.21
GC_Trib10RCH190 6012.9845fu530565.37573.47569.18573.680.000273.91171.4245.180.25
GC_Trib10RCH190 6012.9842fu371565.37571.74568.44571.950.000353.76118.5329.140.27
GC_Trib10RCH190 5969Culvert
GC_Trib10RCH190 5936.929100fu1141564.71572.01572.01574.890.0068413.8687.4919.670.93
GC_Trib10RCH190 5936.92950fu953564.71571.28571.28573.90.0071213.1376.317.530.93
GC_Trib10RCH190 5936.92925fu827564.71570.77570.77573.190.0073212.5768.39160.93
GC_Trib10RCH190 5936.92910fu670564.71569.9569.9572.190.0085612.1655.6813.430.98
GC_Trib10RCH190 5936.9295fu530564.71569.14569.14571.170.0093211.4346.3611.391
GC_Trib10RCH190 5936.9292fu371564.71568.23568.23569.860.0090610.2436.2111.031
GC_Trib10RCH190 5750.002100fu1220562.93570.96571.180.000715.15456.61191.560.33
GC_Trib10RCH190 5750.00250fu1018562.93570.59570.80.000694.92389.32175.180.32
GC_Trib10RCH190 5750.00225fu886562.93570.3570.510.000684.77340.4164.790.32
GC_Trib10RCH190 5750.00210fu704562.93570570.170.000584.27291.71150.310.29
GC_Trib10RCH190 5750.0025fu553562.93569.44569.630.000634.2222.79114.770.3
GC_Trib10RCH190 5750.0022fu387562.93567.51568.170.002556.5463.1838.210.57
GC_Trib10RCH190 5681.931100fu1220562.39570.27569.82570.960.002067.31245.67131.490.54
GC_Trib10RCH190 5681.93150fu1018562.39569.89567.59570.580.00217.05197.88122.290.54
GC_Trib10RCH190 5681.93125fu886562.39569.64567.1570.30.002066.76167.98112.340.53
D- 57
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 5681.93110fu704562.39569.61566.44570.040.001335.42165.25111.390.43
GC_Trib10RCH190 5681.9315fu553562.39569.14565.85569.520.001224.96119.8771.150.4
GC_Trib10RCH190 5681.9312fu387562.39567.54565.11567.910.001254.8479.9916.310.38
GC_Trib10RCH190 5649Culvert
GC_Trib10RCH190 5599.73100fu1220562.21568.33566.59568.890.003536.02204.53159.580.49
GC_Trib10RCH190 5599.7350fu1018562.21567.87566.19568.350.003485.58183.49116.450.48
GC_Trib10RCH190 5599.7325fu886562.21567.47565.9567.920.003695.38165.41107.170.49
GC_Trib10RCH190 5599.7310fu704562.21566.78565.46567.210.004565.23134.7749.610.52
GC_Trib10RCH190 5599.735fu553562.21566.16565.06566.570.005265.11108.3240.230.55
GC_Trib10RCH190 5599.732fu387562.21565.37564.54565.750.006184.9278.7335.060.58
GC_Trib10RCH190 5403.975100fu1220559.66565.6565.6567.360.0124610.77127.1953.820.88
GC_Trib10RCH190 5403.97550fu1018559.66564.89564.89566.70.0157410.8297.4933.220.97
GC_Trib10RCH190 5403.97525fu886559.66564.53564.53566.220.0165810.4286.3229.520.98
GC_Trib10RCH190 5403.97510fu704559.66564.26563.97565.510.01381978.5226.630.88
GC_Trib10RCH190 5403.9755fu553559.66563.87564.870.01268.0268.9823.580.83
GC_Trib10RCH190 5403.9752fu387559.66563.27564.030.01144755.321.750.77
GC_Trib10RCH190 5250.252100fu1220558.19564.33565.30.006718.07168.8153.830.67
GC_Trib10RCH190 5250.25250fu1018558.19564.18564.910.00537.01160.6752.150.6
GC_Trib10RCH190 5250.25225fu886558.19563.99564.610.004716.41151.1750.140.56
GC_Trib10RCH190 5250.25210fu704558.19564.03564.410.002875.04153.1650.560.44
GC_Trib10RCH190 5250.2525fu553558.19563.58563.890.002674.5131.3746.520.41
GC_Trib10RCH190 5250.2522fu387558.19562.86563.110.002773.97100.2440.170.41
GC_Trib10RCH190 4877.936100fu1220555.76562.72563.190.004546.86373.8296.230.53
GC_Trib10RCH190 4877.93650fu1018555.76562.44562.44562.980.005046.97291.75290.060.55
GC_Trib10RCH190 4877.93625fu886555.76562.29562.29562.830.004946.75247.96286.710.54
GC_Trib10RCH190 4877.93610fu704555.76561.11561.11562.360.013139.1289.2249.850.85
GC_Trib10RCH190 4877.9365fu553555.76560.36560.36561.720.018019.3660.3528.120.96
GC_Trib10RCH190 4877.9362fu387555.76559.59559.59560.80.020768.8343.8318.361.01
GC_Trib10RCH190 4798.875100fu1712554.69561.44562.630.006599.27250.8135.030.69
GC_Trib10RCH190 4798.87550fu1429554.69561.02559.98562.150.006638.83200.85103.980.68
GC_Trib10RCH190 4798.87525fu1255554.69560.74561.790.006498.42174.5583.110.67
GC_Trib10RCH190 4798.87510fu1010554.69560.29561.170.006127.66143.4254.910.64
GC_Trib10RCH190 4798.8755fu821554.69559.78560.540.006117.06121.637.830.63
GC_Trib10RCH190 4798.8752fu597554.69559.09559.710.006346.3296.6534.40.62
GC_Trib10RCH190 4435.388100fu1712552.19559.84560.690.004247.97272.2598.660.56
GC_Trib10RCH190 4435.38850fu1429552.19559.33560.160.004427.69225.5384.390.56
GC_Trib10RCH190 4435.38825fu1255552.19558.98559.790.004567.5196.89770.57
GC_Trib10RCH190 4435.38810fu1010552.19558.35559.140.005037.25152.4363.930.58
GC_Trib10RCH190 4435.3885fu821552.19557.82558.510.005076.73125.5933.840.57
GC_Trib10RCH190 4435.3882fu597552.19557.08557.630.005135.97101.3931.550.56
GC_Trib10RCH190 4195.877100fu1712550.78558.97559.650.004026.78290.4986.660.5
GC_Trib10RCH190 4195.87750fu1429550.78558.52559.110.003786.27253.7475.560.48
D- 58
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 4195.87725fu1255550.78558.2558.730.003635.92230.967.750.47
GC_Trib10RCH190 4195.87710fu1010550.78557.55558.020.003685.58190.4957.160.47
GC_Trib10RCH190 4195.8775fu821550.78556.98557.410.003665.25160.250.150.47
GC_Trib10RCH190 4195.8772fu597550.78556.17556.530.003724.85123.240.930.48
GC_Trib10RCH190 3884.197100fu1712549.4557.04558.160.005619.57279.03111.060.65
GC_Trib10RCH190 3884.19750fu1429549.4556.6557.670.005539.08233.7895.960.64
GC_Trib10RCH190 3884.19725fu1255549.4556.29557.320.005528.76205.4385.150.63
GC_Trib10RCH190 3884.19710fu1010549.4555.69556.60.005498.13163.3760.230.62
GC_Trib10RCH190 3884.1975fu821549.4555.15555.980.005567.63133.551.140.61
GC_Trib10RCH190 3884.1972fu597549.4554.4555.090.00566.8399.9738.440.6
GC_Trib10RCH190 3518.932100fu1663547.7555.45556.180.004967.51323.06130.240.51
GC_Trib10RCH190 3518.93250fu1384547.7554.8555.580.005657.5246.46107.930.53
GC_Trib10RCH190 3518.93225fu1213547.7554.4555.180.005977.37205.296.280.54
GC_Trib10RCH190 3518.93210fu981547.7553.86554.520.005636.7161.7942.740.52
GC_Trib10RCH190 3518.9325fu797547.7553.4553.950.005216.06142.7240.170.49
GC_Trib10RCH190 3518.9322fu578547.7552.72553.130.004785.23116.6336.380.46
GC_Trib10RCH190 3328.318100fu1663546.3554.55555.340.003757.85264.0867.990.53
GC_Trib10RCH190 3328.31850fu1384546.3553.91554.660.004017.58222.5461.150.54
GC_Trib10RCH190 3328.31825fu1213546.3553.47554.20.004257.44196.3357.680.55
GC_Trib10RCH190 3328.31810fu981546.3552.83553.540.004637.17161.3752.70.56
GC_Trib10RCH190 3328.3185fu797546.3552.27552.950.005056.92132.9948.290.58
GC_Trib10RCH190 3328.3182fu578546.3551.51552.120.005636.4598.6540.570.59
GC_Trib10RCH190 2833.369100fu1663544.12552.96553.720.002917.25276.2864.910.48
GC_Trib10RCH190 2833.36950fu1384544.12552.355530.002796.68239.9754.640.46
GC_Trib10RCH190 2833.36925fu1213544.12551.95552.520.002676.27219.1848.520.45
GC_Trib10RCH190 2833.36910fu981544.12551.34551.820.002555.71190.645.620.43
GC_Trib10RCH190 2833.3695fu797544.12550.79551.190.002455.21166.1142.980.41
GC_Trib10RCH190 2833.3692fu578544.12549.96550.290.002434.6132.3839.080.4
GC_Trib10RCH190 2565.053100fu1680542.49551.96550.03552.790.004197.35239.5853.580.54
GC_Trib10RCH190 2565.05350fu1397542.49551.36549.52552.090.004266.87208.6649.260.54
GC_Trib10RCH190 2565.05325fu1224542.49550.95551.620.004336.56189.2446.340.53
GC_Trib10RCH190 2565.05310fu989542.49550.35550.930.004466.09162.8842.050.53
GC_Trib10RCH190 2565.0535fu803542.49549.81550.310.004575.7140.8838.490.53
GC_Trib10RCH190 2565.0532fu582542.49548.98549.40.004565.26110.7434.130.51
GC_Trib10RCH190 1949.012100fu1680540.21547.34547.06548.840.010579.94177.656.050.83
GC_Trib10RCH190 1949.01250fu1397540.21547.03546.51548.270.009579160.5751.690.78
GC_Trib10RCH190 1949.01225fu1224540.21546.82547.890.008798.34150.3748.890.75
GC_Trib10RCH190 1949.01210fu989540.21546.5547.340.007767.39135.2444.410.69
GC_Trib10RCH190 1949.0125fu803540.21546.19546.870.006936.58122.3440.210.64
GC_Trib10RCH190 1949.0122fu582540.21545.64546.150.006165.73101.6635.260.59
GC_Trib10RCH190 1583.186100fu1680538.5546.91547.220.00185.39429.76129.380.37
GC_Trib10RCH190 1583.18650fu1397538.5546.23546.560.002225.57345.18118.680.4
GC_Trib10RCH190 1583.18625fu1224538.5545.8546.160.002525.65296.47110.930.42
D- 59
RiverReachRiver StaProfile
Q Total
(cfs)
Min Ch
El (ft)
W.S. Elev
(ft)
Crit
W.S. (ft)
E.G.
Elev (ft)
E.G.
Slope
(ft/ft)
Vel
Chnl
(ft/s)
Flow
Area (sq
ft)
Top
Width (ft)
Froude #
Chl
APPENDIX D
HEC-RAS Results for Future Conditions
GC_Trib10RCH190 1583.18610fu989538.5545.2545.580.002985.68233.6598.070.45
GC_Trib10RCH190 1583.1865fu803538.5544.69545.080.003445.67185.8986.880.48
GC_Trib10RCH190 1583.1862fu582538.5543.95544.340.0045.41129.9659.630.5
GC_Trib10RCH190 1023.274100fu1680535.31545.93546.310.001665.29387.92118.440.35
GC_Trib10RCH190 1023.27450fu1397535.31544.9545.360.00235.62282.1287.170.4
GC_Trib10RCH190 1023.27425fu1224535.31544.2544.70.002885.8228.665.930.44
GC_Trib10RCH190 1023.27410fu989535.31543.36543.860.003355.72180.551.530.46
GC_Trib10RCH190 1023.2745fu803535.31542.66543.130.003695.52147.3942.390.48
GC_Trib10RCH190 1023.2742fu582535.31541.86542.240.003664.95117.5733.220.46
GC_Trib10RCH190 535.579100fu1668534.11545.36545.640.001144.31411.1788.560.29
GC_Trib10RCH190 535.57950fu1393534.11544.07544.40.001634.58308.5272.20.34
GC_Trib10RCH190 535.57925fu1208534.11543.17543.510.001984.71256.7449.640.36
GC_Trib10RCH190 535.57910fu993534.11542.04542.410.002554.88203.4345.120.41
GC_Trib10RCH190 535.5795fu805534.11540.99541.390.003385.09158.0740.880.46
GC_Trib10RCH190 535.5792fu584534.11539.72540.160.0055.33109.5435.720.54
GC_Trib10RCH190 324.93100fu1668533.85545.3538.94545.450.000363.07552.77151.060.18
GC_Trib10RCH190 324.9350fu1393533.85544.01538.49544.150.000433.02471.21116.180.19
GC_Trib10RCH190 324.9325fu1208533.85543.09538.16543.220.000493413.1198.860.2
GC_Trib10RCH190 324.9310fu993533.85541.92537.72542.060.000633339.8380.30.22
GC_Trib10RCH190 324.935fu805533.85540.8537.3540.940.000863.07268.8768.120.24
GC_Trib10RCH190 324.932fu584533.85539.37536.69539.520.001363.2184.8154.170.29
GC_Trib10RCH190 258Culvert
GC_Trib10RCH190 191.143100fu1668533.5539.47538.38540.480.006598.1208.7451.170.67
GC_Trib10RCH190 191.14350fu1393533.5539.07537.92539.930.006237.4218948.790.64
GC_Trib10RCH190 191.14325fu1208533.5538.78537.58539.520.005986.92174.9147.010.62
GC_Trib10RCH190 191.14310fu993533.5538.4537.14539.020.005646.3157.5244.730.59
GC_Trib10RCH190 191.1435fu805533.5538.01536.71538.520.00515.72140.6942.650.56
GC_Trib10RCH190 191.1432fu584533.5537.48536.16537.850.004324.92118.5839.860.5
GC_Trib10RCH190 34.419100fu1668533.8538.96537.56539.50.003635.89283.1779.890.55
GC_Trib10RCH190 34.41950fu1393533.8538.53537.23539.010.003635.58249.4976.320.54
GC_Trib10RCH190 34.41925fu1208533.8538.21536.99538.650.003635.35225.7973.70.54
GC_Trib10RCH190 34.41910fu993533.8537.81536.67538.20.003645.04196.9670.390.53
GC_Trib10RCH190 34.4195fu805533.8537.43536.37537.770.003634.72170.5467.270.52
GC_Trib10RCH190 34.4192fu584533.8536.9536537.190.003634.27136.6662.690.51
D- 60
Node ID *ConditionSurveyor's Comments
GR530113(critical)broken pipe u/s of manhole covered by wood.
GR531423 (critical)structure is filling with mud.
GR552953 (critical)pipe is buried.
GR552963 (critical)pipe is buried.
GR530552 (routine)we cannot locate end of pipe, concrete trucks have been cleaning & dumping concrete
covering pipe.
GR531182 (routine)structure still has 2" x 4" framing in it.
GR531382 (routine)debris in pipe
GR531582 (routine)box has some mud in it.
GR531772 (routine)the pipe has re-rod drove in front of it blocking flow also owner thinks pipe may be mashed
from 53177 to 53176.
GR535172 (routine)channel is breaking up at this point. link = 53518 ahead & 53516 back.
GR535382 (routine)pipe could be caving in some.
GR535392 (routine)link = 53538 back & 53540 ahead.
GR535402 (routine)deteriorated concrete
GR535442 (routine)link = 53545 ahead & 53543 back. cracked
GR535452 (routine)just the end of channel flat conc. (concrete is broken off on end.)
Node ID *ConditionSurveyor's Comments
GR550133 (critical)structure needs to have wood framing removed from bottom structure. cannot see bottom of
cmp's, can only poke a
GR550143 (critical)cmp needs to be dug and cleaned out.
GR550253 (critical)cmp at 55024 or 55023 is reduced to a 18" cmp, causing a ponding affect at 55021
GR550563 (critical)cmp is smashed & clogged with brush & leaves, cutting into road bedfill.
GR555233 (critical)pipe is extremely clogged. may have a fence blocking front of pipe.
GR555393 (critical)bottom is discolored and pipe is dented. pipe now has a big tear in it.
GR550052 (routine)pipe has been set fire to, partly melted. it could be trimmed to remove melted area.
GR550162 (routine)p-2 has 2-12" rocks in end of pipe
GR550202 (routine)cmp needs to be cleaned out. approx. 1/2 full of dirt.
GR550352 (routine)pipe has water standing in it, probably will rust out sooner
GR550382 (routine)pipe has rusted out.
GR550432 (routine)structure has some leaves & sticks in it
GR550462 (routine)cmp is rusted out, undermining of pavement around structure.
GR550472 (routine)p-2 is lower than p-1, both pipes are rusted out
GR550482 (routine)pipe is rusted out.
GR550492 (routine)cmp is rusting out.
GR550502 (routine)pipe is rusted out.
APPENDIX E
Surveyor's Structure Comments
Structures inside City boundary
Structures in the County
* These node ID identifiers refer to the GIS database
E-1
Node ID *ConditionSurveyor's Comments
Structures in the County
GR550582 (routine)cmp is plugged with stricks & leaves.
GR550632 (routine)cmp is rusted out.
GR550842 (routine)pipe has several of slits.
GR550942 (routine)cmp is smashed on top at end.
GR551052 (routine)pipe is rusted out.
GR551092 (routine)cmp is 3/4 full of fill, cannot see condition
GR551102 (routine)cmp is 3/4 full of fill, cannot see condition.
GR551112 (routine)end is smashed, ditch needs to be cleaned
GR551122 (routine)ditch needs to be cleaned.
GR551132 (routine)cmp is partly smashed, ditch needs to be cleaned.
GR551142 (routine)cmp appears to be in good shape, needs to be cleaned out.
GR551192 (routine)cmp is rusted out
GR551252 (routine)cmp is 1/2 full of fill, cannot see condition.
GR551362 (routine)cmp is smashed at this end.
GR551452 (routine)pipe needs to be cleaned.
GR551482 (routine)cmp is rusted out.
GR551902 (routine)cmp is 1/3 full of mud.
GR551982 (routine)cmp is rusted out
GR552042 (routine)pipe has rusted out
GR552272 (routine)cmp is rusted out.
GR552552 (routine)cmp is 1/3 full of gravel.
GR552562 (routine)cmp is 2/3 full, also has brush piled around it.
GR552762 (routine)cmp is smashed at end.
GR555092 (routine)cmp is rusted out.
GR555112 (routine)bottom is rusted out.
GR555162 (routine)debris in bottom of manhole
GR555172 (routine)sits on top of 36" cmp with a 12" x 12" slit cut out.
GR555182 (routine)lots of tree limbs and stumps blocking the pipe.
GR555292 (routine)pipe has had the end bent up pretty good, but probably serves the purpose. has a lot of
weeds around it.
GR555352 (routine)bottom of pipe is silted in.
GR555362 (routine)bottom of pipe is rusted.
GR555512 (routine)bottom is rusted out.
GR555522 (routine)bottom rusted out.
GR555662 (routine)pipe is about 30% silted in.
GR555682 (routine)pipe is about 25% silted in.
GR555692 (routine)pipe has discoloration and is clogging.
GR555702 (routine)bottom of pipe is silted in.
GR555712 (routine)pipe has a big dent on the side.
GR555752 (routine)bottom has gravel in it.
E-2
Node ID *ConditionSurveyor's Comments
Structures in the County
GR555762 (routine)has gravel in bottom.
GR555792 (routine)appears real brushy.
GR555812 (routine)pipe is silted in
GR555882 (routine)has some rocks in bottom.
GR555922 (routine)has some gravel in bottom of pipe.
GR555952 (routine)has some rocks in front of end of pipe. appears to be there to slow down flow.
GR556322 (routine)bottom has some gravel in it, rain would wash it out.
E-3