HomeMy Public PortalAboutCAMPBELL_172.pdfCITY OF TYBEE ISLAND
CERTIFICATE OF OCCUPANCY
DATE COMPLETED: 7/28/2017
This Certificate issued pursuant to the requirements of the Standard Building Code
Certifying that at the time of issuance this structure was in compliance with the various
ordinances of the Jurisdiction regulating building construction or use.
PERMIT #:
PROPOSED USE:
OCCUPANCY TYPE:
CONTACT NAME
CONTACT ADDRESS
CONTACT CITY STATE ZIP
PROPERTY ADDRESS
APPROVED BY:
160590
NEW RESIDENTIAL BLDG -SF
TODD & TAMMY SMITH
172 SOUTH CAMPBELL
TYBEE ISLAND GA 31328
172 S CAMPBELL
P. O. Box 2749 - 403 Butler Avenue, Tybee Island, Georgia 31328
(912) 786-4573 - FAX (912) 786-5737
www.cityoftybee.org
CITY OF TYBEE ISLAND
Application for a New Construction Permit
P.O. Box 2749. 403 Butler Ave., Tybee Island, GA 31328
Phone 912.472.5030 - Fax 912.786.9539
pages 1 - 7 of permit application
Required submittals: _� 2 sets building plans
1 copy REScheck or COMcheck
_✓ 1 copy certified survey showing existing ground elevations, flood zone(s), and trees
3 sets certified hydrology, drainage and erosion control plans
$250 plan deposit (will be forfeited if project is abandoned) check #
Street address Z S alb b i-Apbe'll 1,It be_r_ PIN # 4-0011.0— - — . -
NAME MAILING ADDRESS PHONE
Check all that apply:
Details of project:
N New Construction
❑ Other
❑ Commercial
5�u
f
owv.to\
esidential
Single Family
❑ Duplex
❑ Multi -Family
units
Estimated cost of construction: $ C7� C1 & f 4S-. X A copy of the contract may be requested.
Construction type: _ (select appropriate number below)
1. wood frame 3. brick veneer 5. steel & masonry
2. wood & masonry 4. masonry 6. other:
Lot area `-f sq. ft. # buildings # units
# floors 1 # bedrooms— # bathrooms 2—
# of egresses 2- An elevator is not an accepted means of egress.
Height 2_%,(-J'iA Vertical distance is measured from the average adjacent grade of the lot to the extreme high point of
the building (roof ridge, handrail, etc.), exclusive of chimneys, HVAC units, elevators, and similar appurtenances.
Total heated/cooled square footage I I qSS44. Flood Zone (AE or VE)
Base Flood Elevation` .
As -built setbacks: Front a;
Total driveway(s) width feet
Number of off-street parking spaces
Design Flood Elevation (BFE + 1 -foot) I4
Rear Sides (L) _L� (R) 1 4
# of openings �� Culvert? Swale?
Number of trees to be removed
A separate tree removal permit is required. 3/10/2013
1
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Architect
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Contractor
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Office:
cell:
Check all that apply:
Details of project:
N New Construction
❑ Other
❑ Commercial
5�u
f
owv.to\
esidential
Single Family
❑ Duplex
❑ Multi -Family
units
Estimated cost of construction: $ C7� C1 & f 4S-. X A copy of the contract may be requested.
Construction type: _ (select appropriate number below)
1. wood frame 3. brick veneer 5. steel & masonry
2. wood & masonry 4. masonry 6. other:
Lot area `-f sq. ft. # buildings # units
# floors 1 # bedrooms— # bathrooms 2—
# of egresses 2- An elevator is not an accepted means of egress.
Height 2_%,(-J'iA Vertical distance is measured from the average adjacent grade of the lot to the extreme high point of
the building (roof ridge, handrail, etc.), exclusive of chimneys, HVAC units, elevators, and similar appurtenances.
Total heated/cooled square footage I I qSS44. Flood Zone (AE or VE)
Base Flood Elevation` .
As -built setbacks: Front a;
Total driveway(s) width feet
Number of off-street parking spaces
Design Flood Elevation (BFE + 1 -foot) I4
Rear Sides (L) _L� (R) 1 4
# of openings �� Culvert? Swale?
Number of trees to be removed
A separate tree removal permit is required. 3/10/2013
1
During construction on-site restrooms will be provided by
Construction debris will be disposed by 0 �3Y J by means of
Section 22-169 — When active work ceases on the project for the day a SECURE COVER shall be placed over
the dumpster or container so as to prevent trash or construction debris from being blown out.
I understand that I must comply with zoning, erosion control, building, fire, shore protection and wetland
ordinances, FEMA regulations, and all other applicable codes and regulations. I understand a foundation
survey and certification letter are required as soon as the foundation is in place to ensure that the setback
requirements will be met. I understand an Elevation Certificate — Building Under Construction is required
immediately after lowest floor or flood proofing is completed. I realize that an as -built survey, Elevation
Certificate — Finished Construction, Breakaway Wall Certification, Recorded Nonconversion Agreement,
Energy Code Compliance Certificate, tree mitigation, height certification, drainage certification, and site
acceptance by the City will be required. I accept financial responsibility for any expenses the city incurs for
third -party engineering services related to this project.
I agree to construct/place all equipment such as air conditioning compressors, ducts, water heaters, furnaces,
electrical outlets, etc., at or above the required Design Flood Elevation (Base Flood Elevation + 1 -foot).
Projects must demonstrate they are in compliance with the City of Tybee Island Stormwater Management
requirements as outlined in Article 16 of the Land Development Code. As part of the approval process,
applicants must illustrate how these requirements will be met, including how stormwater naturally flowed on the
property prior to any development activity, and what changes in stormwater flow will occur.
A permit normally requires 7 to 10 business days to process.
Signature of applicant: Date:
Printed name: H1� �, , C cn " ,, -.rte
The following will be completed by City of Tybee Island personnel.
Zoning District Flood Zone BFE 13 _ DFE
Approved zoning action?
Verified street address Ye S
If new, has it been reported to MPC, CRC, etc.? ygt-S
Number of egresses?
10M
Average adjacent grade S—• (P ( feet
New ZExisting _
Drainage and Erosion Control plans approved? `J
Approval ature Date
Building Official
Water/Sewer U�
Public Works
Fire Chief
Planning & Zoning
2
FEES
Permit
Inspections
Water Tap
CC Recovery
J_ Sewer Stub"
Aid to Construction
Plan deposit refund
TOTAL
The following deficiencies are the most common on the projects in the City of Tybee Island, While the
deficiencies are not necessarily the fault of the owner or his agent, they are their responsibilities. The two most
common areas of deficiencies are for the two most basic BMPs on projects:
Co — Construction Exit
Sdi — Sediment Barrier
Correct installation information can be found in the Green Book and in the Field Manual for Erosion and
Sediment Control in Georgia, which is available at: http://www.gaswcc.org/docs/field manual 4ed Pdf. The
Georgia Soil and Water Conservation Commission is located at 4310 Lexington Road, P.O. Box 8024, Athens,
Georgia, 30603. The telephone number is 706.542.3065. Their website is: htlp://gaswcc.georgiaL0 Also
see pages 9 through 12 of this packet.
Attention to the Construction Exit is not limited to the installation, but must also include the material.
Specifically, job site personnel are not checking to ensure the stone delivered is the 1.5 -inch to 3.5 -inch stone
they requested. Gradations that are obviously smaller will not be tolerated. The smaller stone allows for a
smoother surface with smaller voids, thereby reducing the function of the Construction Exit.
Type A sediment barriers are not allowed where Type C is required as shown on the approved permit
drawings. Where two rows are called for they will be installed with a separation that allows for the first one to
fail (fall over) without impacting the second one. The complete assembly and installation must be compliant:
steel or wood posts, post spacing, Type C or A, etc.
Past violations have resulted in:
1) Sediment discharge from the site which causes unsightliness, inconvenience to others, unnecessary
cleanup, and Violation Notices.
2) Increased maintenance efforts by the Department of Public Works on downstream lines.
3) Due to item 2, higher costs to island taxpayers.
While these deficiencies are not the only ones, they are the most common. Heeding the above cautions
should result in fewer infractions.
Downer Davis
City of Tybee Island Consulting Engineer
SIGNATURE OF ACKNOWLEDGEMENT
Signature of contractor:
Printed name:
3
Date: S - Lt
February 2013
all
F7711 -
s engineered design
MaX',Mum 8 -foot pier - greater than 8 -foot require
4-#8[)R
6'#7OR
8-#6OR
lO'#5
#Ztie every IIinches
Fill all cells with SOOOPS\concrete
CITY OF TYBEE ISLAND
P.O. Box 2749 - 403 Butler Ave., Tybee Island, GA 31328
Phone 912.472.5030 • Fax 912.786.9539
Water Tap and Sewer Stub Application
Street address of project 1 -I ,�
Plumbing company
Plumbing contact person & phone numbers
Name of property owners)
amca r Coll
Phone numbers of property owner(s)
_ office call
Details of project (�,,._ N�11
Residential I Commercial
Enter the required number of water taps/meters and sewer stubs:
WATER TAP/METER
SEWER STUB
Number Meter
Number
Stub
of Tans Size
of Stubs
Size
314"
�`
4°
1-112"
8»
2"
Unauthorized use of water prior to installation of a water meter is prohibited.
Installation of lines and meters are the responsibility of the owner/contractor. Contact the Water/Sewer Department at
912.472.5051 for line and tie-in locations and for inspections.
Contact the Planning & Zoning Department at 912.472.5030 to arrange for water meter pick up.
It is the responsibility of the owner to establish a water/sewer account with the City. An application and deposit are
required. Contact 912.472.5025,
XSignature of owner: J
r
Printed name;
Signature of contractor:
Printed name: Jt
I -
11
Date: 5 1 a t {c
Date: S —'-t" I to
A SEPARATE PERMIT IS REQUIRED FOR INFRASTRUCTURE ALTERATIONS
Any alteration to City owned streets, curbs, sidewalks, waterlines, sewer lines, drainage pipes, catch basins, or
other elements of the City's infrastructure, requires a separate permit from the City, and an acknowledgement
by tbR individual seeking to accomplish the alteration, that:
a. The City's infrastructure will not be degraded in any way.
All necessary safety precautions will be undertaken.
c. The City will inspect the work in process and upon completion.
d. The work will be accomplished to the City's satisfaction.
e. The City shall be held harmless of any liability or damages of any variety.
f. The individual has read applicable portion of the City's Code of Ordinance dealing with the alteration,
and agrees to fully comply with such provisions.
Will the proposed project at ,� �'O �< ��'« 1 require an infrastructure alteration permit?
street address of project
E] Yes �No
Description of alteration:
A site plan must be provided illustrating the planned alteration.
City Design Standards and Specifications: Any alteration to the City's infrastructure shall be accomplished
in such a fashion so as to restore the infrastructure to essentially the same condition that existed prior to the
alteration, or to an improved condition, as determined by the City.
Certification: I hereby acknowledge the above requirements, and certify that I will obtain a separate permit
prior to performing any alteration in accordance with these provisions.
Signature of contractor: Date: C' -
Printed
Printed name:
5
CITY OF TYBEE ISLAND
Temporary Electrical Service Affidavit
Street address of project: i I a a -, c l -V, -)b.1-0
This notice is to confirm the understanding of the owner and contractor of the compliance requirement of the Georgia
State Minimum Construction Codes.
It is understood and agreed by the undersigned that the requested temporary electrical power is intended for the
completion of the construction process and the testing of equipment installed within the structure.
It is understood and agreed by the undersigned that the issuance of temporary power DOES NOT constitute the approval
to occupy the structures. A Certificate of Occupancy must be issued by the City of Tvbee Island prior to the structure
being furnished and/or occupied.
The owner and contractor are hereby held responsible for any violations to this policy. A violation of this policy may result
in discontinuance of the electrical service.
Temporary electrical service will be granted as an aid to complete construction only. It may be revoked as
circumstances dictate.
Means shall be provided to disconnect all conductors from the service -entrance conductors.
NEC 230.70
State Energv Code Affidavit
I hereby declare that the design and construction of the above referenced project is in compliance with the Georgia State
Energy Code for Buildings, 2009 Edition, with Georgia Amendments.
A Georgia Energy Code Compliance Certificate will be required at project completion.
It is understood and agreed by the undersigned owner and contractor (if applicable) that the approval of the permit does
not constitute a privilege to violate the Code and that any omission of or misrepresentation of fact, with or without
intention, of the permit issued which was based on the approval of this application. The owner will be held responsible for
insuring that all permits have been obtained and that all required inspections have been made. The owner will be held
legally liable for any violations which may occur with or without his knowledge. The owner shall be allowed to request a
Certificate of Occupancy when all inspections (building and site) have been approved.
SIGNATURES for Temporary Electrical Service and State Energy Code AFFIDAVITS
Signature of owner: y " ' Date: ? `�
Printed name: LAA �C-VLn
Signature of contractor: Date: S — Lf
Printed name:
G
Subcontractor List
Street address of project: �` �. So L'_�-, C_
Provide the company name, business type, address, contact person, and phone numbers of all
subcontractors. The City of Tybee Island requires annual Contractor Registration for all contractors.
1. Company Lc�-AV- I OJ �l� r Business type
Address �S� cj Cell number �� la— V14 —Sol
Contact persons I�^c�.,�-e _ Office number
2. Company e CA %f-' N c Business type Evc
Address � '��- {a A- Cell number rA r�,
Contact person 5 4�ZL-_% Office number
3. Company
Address
Contact person
4. Company
Address
Contact person
5. Company
Address
Contact person
6. Company
Address
Contact person
Business type
Cell number 0
Office number
Business type
Cell number _
Office number
Business type
Cell number _
Office number
Business type
Cell number _
Office number
Attach additional sheets if needed.
7
U.S. DEPARTMENT OF HOMELAND SECURITY ELEVATION CERTIFICATE
FEDERAL. EMERGENCY MANAGEMENT AGENCY
lValional Flood Insurance Program Important: Read the instructions on pages 1-9.
SECTION A - PROPERTY INFORMATION
Al. Building Owner's Name
A2 Building Street Address (including Apt., Unit, Suite, and/or Bldg. No_) or P_O_ Route and Box No.
172 South Campbell
City Tybee Island
State GA ZIP Code 31328
A3. Property Description (Lot and Block Numbers, Tax Parcel Number, Legal Description, etc.)
Lot 32-B, Horse Pen Hammock PIN 4-0016-02-032
[Expiration
MB No. 1660-0008
Date: July 31, 2015
ONSURANCE COMPANY USE
Company
A4, Building Use (e.g., Residential, Non -Residential, Addition, Accessory, etc.) Residential
A.5- Latitude/Longitude: Lat. N 32 deg 00.4650 min Long. W 80 deg 51.1610 min Horizontal Datum: ❑ NAD 1927 ® NAD 1983
A6. Attach at least 2 photographs of the building if the Certificate is being used to obtain flood insurance.
AT Building Diagram Number 5
A8. For a building with a crawlspace or enclosure(s)- A9. For a building with an attached garage:
a) Square footage of crawlspace or enclosure(s) Ilia sq ft a) Square footage of attached garage n/a sq ft
b) Number of permanent flood openings in the crawlspace b) Number of permanent flood openings in the attached garage
or enclosure(s) within 1.0 foot above adjacent grade n/a within 1.0 foot above adjacent grade nla
c) Total net area of flood openings in A8.b n/a sq in c) Total net area of flood openings in A9.b Ilia sq in
d) Engineered flood openings? ❑ Yes ® No d) Engineered flood openings? ❑ Yes
N No
SECTION B - FLOOD INSURANCE RATE MAP (FIRM) INFORMATION
B1. NFIP Community Name & Community Number B2. County Name B3. State
Tybee Island 135164 Chatham GA
B4. MaplPane! Numb��F
x B6�FIR dex Date B7. FIRM Panel B8. Flood B9. Base Flood Elevations) (Zone
1 3051 0021 3 14 Effective/Revised Date Zone(s) AQ use base flood depth)
9126108 AE 13.0
B10. Indicate the source of the Base Flood Elevation (BFE) data or base flood depth entered in Item B9.
❑ FIS Profile ® FIRM ❑ Community Determined ❑ Other/Source:
B11. Indicate elevation datum used for BFE in Item B9: ❑ NGVD 1929 ® NAVD 1988 ❑ Other/Source:
B12. Is the building located in a Coastal Barrier Resources System (CBRS) area or Otherwise Protected Area (OPA)? ❑ Yes ® No
Designation Date: ❑ CBRS ❑ OPA
SECTION C - BUILDING ELEVATION INFORMATION (SURVEY REQUIRED)
C1. Building elevations are based on: ❑ Construction Drawings" ❑ Building Under Construction' ❑ Finished Construction
'A new Elevation Certificate will be required when construction of the building is complete.
C2. Elevations - Zones Al -A30, AE, AH, A (with BFE), VE, V1 -V30, V (with BFE), AR, ARIA, AR/AE, ARIA1-A30, AR/AH, AR/AO. Complete Items C2.a-h
below according to the building diagram specified in Item A7. In Puerto Rico only, enter meters.
Benchmark Utilized: local Vertical Datum: NAVD 1988
Indicate elevation datum used for the elevations in items a) through h) below. ❑ NGVD 1929 ® NAVD 1988 ❑ Other/Source:
Datum used for building elevations must be the same as that used for the BFE.
Check the measurement used
a) Top of bottom floor (including basement, crawlspace, or enclosure floor)
14.8
® feet
❑ meters
b) Top of the next higher floor
n/a.
® feet
❑ meters
c) Bottom of the lowest horizontal structural member (V Zones only)
nla.
® feet
❑ meters
d) Attached garage (top of slab)
n/a.
® feet
❑ meters
e) Lowest elevation of machinery or equipment servicing the building
14.0
® feet
❑ meters
(Describe type of equipment and location in Comments)
f) Lowest adjacent (finished) grade next to building (LAG)
5.4
® feet
❑ meters
g) Highest adjacent (finished) grade next to building (HAG)
5.7
® feet
❑ meters
h) Lowest adjacent grade at lowest elevation of deck or stairs, including structural support
5.7
® feet
❑ meters
SECTION D - SURVEYOR, ENGINEER, OR ARCHITECT CERTIFICATION
This certification is to be signed and sealed by a land surveyor, engineer, or architect authorized by law to certify elevation
information. I certify that the information on this Certificate represents my best efforts to interpret the data available. OR
l understand that any false statement may be punishable by fine or imprisonment under 18 U.S. Code, Section 1001. 5TE I�
® Check here if comments are provided on back of form. Were latitude and longitude in Section A provided by a
® Check here if attachments. licensed land surveyor? ® Yes ❑ No
Certifiers Name J. Whitley Reynolds License Number 2249
Title Land Su 7n
Company Name
Address 6 step h ns nue City Savannah State GA ZIP Code 31405
SignatO 1p, /I---- Date 4127116 Telephone 912-352-0464
E'11
FEMA Forfl 086-0-33 (7112) See reverse side for continuation. Replaces all previous editions.
ELEVATION CERTIFICATE, page 2
IMPORTANT. In these spaces, copy the corresponding information from Section A. FOR INSURANCE COMPANY USE
Building Street Address (including Apt., Unit, Suite, and/or Bldg. No.) or P.O. Route and Box No. Policy Number:
172 South Campbell Ave.
City Tybee Island State GA ZIP Code 31328 Company NAIC Number.
SECTION D - SURVEYOR, ENGINEER, OR ARCHITECT CERTIFICATION (CONTINUED)
Copy both sides of this Elevation Certificate for (1) community official, (2) insurance agent/company, and (3) building owner.
Comments Ground level is storage and parking with lattice.
Signature
Date 4/27116
SECTION- BUILDING ELEVATION INFORMATION (SURVEY NOT REQUIRED) FOR ZONE AO AND ZONE A (WITHOUT BFE)
For Zones lib and A (without BFE), complete Items El -i If the Certificate is intended to support a LOMA or LOMR-F request, complete Sections A, B,
and C. For Items E1 -E4, use natural grade, if available. Check the measurement used. In Puerto Rico only, enter meters.
E1. Provide elevation information for the following and check the appropriate boxes to show whether the elevation is above or below the highest adjacent
grade (HAG) and the lowest adjacent grade (LAG).
a) Top of bottom floor (including basement, crawlspace, or enclosure) is _ ❑ feet ❑ meters ❑ above or ❑ below the HAG,
b) Top of bottom floor (including basement, crawlspace, or enclosure) is ❑ feet ❑ meters ❑ above or ❑ below the LAG.
E2. For Building Diagrams 6-9 with permanent flood openings provided in Section A Items 8 and/or 9 (see pages 8-9 of Instructions), the next higher floor
(elevation C2,b in the diagrams) of the building is _ ❑ feet ❑ meters ❑ above or ❑ below the HAG.
E3. Attached garage (top of slab) is ❑ feet ❑ meters ❑ above or ❑ below the HAG,
E4. Top of platform of machinery and/or equipment servicing the building is ❑ feet ❑ meters ❑ above or ❑ below the HAG.
E5. Zone AO only: If no flood depth number is available, is the top of the bottom floor elevated in accordance with the community's floodplain management
ordinance? ❑ Yes ❑ No ❑ Unknown. The local official must certify this information in Section G.
SECTION F - PROPERTY OWNER (OR OWNER'S REPRESENTATIVE) CERTIFICATION
The property owner or owner's authorized representative who completes Sections A, B, and E for Zone A (without a FEMA -issued or community -issued BFE)
or Zone AO must sign here. The statements in Sections A, B, and E are correct to the best of my knowledge.
Property Owner's or Owner's Authorized Representative's Name
Address T City State ZIP Code
Signature
Comments
Date
Telephone
Check here if attachments
SECTION G - COMMUNITY INFORMATION (OPTIONAL)
The local official who is authorized by law or ordinance to administer the community's floodplain management ordinance can complete Sections A, B, C (or E), and G
of this Elevation Certificate. Complete the applicable item(s) and sign below Check the measurement used in Items G8 -G10 In Puerto Rico only, enter meters.
G1. ❑ The information in Section C was taken from other documentation that has been signed and sealed by a licensed surveyor, engineer, or architect who
is authorized by law to certify elevation information. (Indicate the source and date of the elevation data in the Comments area below.)
G2. ❑ A community official completed Section E for a building located in Zone A (without a FEMA -issued or community -issued BFE) or Zone AO_
G3. ❑ The following information (Items G4 -GI 0) is provided for community floodplain management purposes.
G4. Permit Number — G5. Date Permit Issued G6. Date Certificate Of Compliance/Occupancy Issued
G7. This permit has been issued for. ❑ New Construction ❑ Substantial Improvement
G8. Elevation of as -built lowest floor (including basement) of the building: ❑ feet ❑ meters Datum
G9. BFE or (in Zone AO) depth of flooding at the building site: ❑ feet ❑ meters Datum
G10_ Community's design flood elevation: ❑ feet ❑ meters Datum
Local Official's Name
Community Name - T
Signature
Comments
FEMA Form 086-0-33 (7/12)
Title
Telephone
Date
Check here if attachments.
Replaces all previous editions.
DESIGN CALCULATIONS AND
HYDROLOGY REPORT
FOR THE
New Residential Structure
176 South Campbell Avenue
Tybee Island, Georgia
FOR
Todd and Tammy Smith
106 B, Laurel Ave.
Tybee Island, Georgia 30328
May, 2016
BOSWELL DESIGN SERVICES, INC
103 NASSAU DRIVE
SAVANNAH, GEORGIA
912-897-6932
LAHBOSPBELLSOUTH.NET
ViciNITYMAP, SAGISAND PROJECT INFORMATION
Enter MAp Title
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PLN 4-001 G -02-032
Owners Name: To UD ANa TAo6nSri•
Owner`s Address l:
Owner's Address 2: 17G 5 CAMPBELL AVE
Owners Addre55 3:
City. TYBEE 15LAND
,State: GA
Zip Code: 31328
PropertyAddres5: 0 5 CAMPBELL AVE TYBEE 15LAND
Street Llghting:
Munlclpal Code: 4
Neighborhood Code: I
Land Urnt5: 30
Land Frontage: 30
Land Depth: 7 1
Land Type: FF
Ileal Estate Value: 177700
Land Value: 177700
Building Value: 0
Property C1a55: K
Land Use Code: 01
Sale Pace: 0
Sale Year.
Sale Month:
.sale Day.
Tran5lt Code: 0
APC Code:
Commercial Categary.
Agent:
Total A.s5es3ment: 71080
Legal Description /: LOT 32-B NORSE PEN HAMMOCK
Legal Oe5crlptlon 2: BOOK 50 PG 15
Zanirng Code:
Sale or Book.
Safe or Page:
Base Year Value: 0
Base Year Value w/ CPI: 0
CAMA Land Value: 177700
CAMA Mr.Sc Value: 0
CAMA Belding Value: O
CAMA Total Value: 177700
Ch'TXFER Filler. Null
Tax Allocation District (TAD):
TAD Base Year Value: 0
Enterprise Zone:
GData EZ
TCR Date: 5/8/2015
Street Number: 0
Street Short Name: CAMPBELL
Street Prefix: S
Umt Number. N u I
Street Name: CAMPBELL
Calculated Acreage: 0.205058
Owner Name: BRAGG JOHN D
Full Address: O S CAMPBELL AVE
Property Address 2: 0 S CAMPBELL AVE TYBEE 15LAN D
Property Zip Code: 3 13 28
Calculated Zoning: R-2
Zornng Descrrpbon: One and Two Family Residences
Alderman: O
Comm1551oner. 4
Neighborhood: T222 TYBEE HORSE PEN
Land Uye: SINGLE FAMILY RES
Calculated Flood Zone: AE
Elementary 5chool: HOWARD
Middle 5chool: COASTAL
t-ligh 5chool: 15LAND5
Voter Precinct: 4-1 OC
Street Suffix: AVE
Alder Text: None
IayerName: Parcels Outline
REPoRr
HYDROLOGY REPORT
For The Proposed
Residential Project
176 South Campbell Avenue
Tybee Island, Georgia
SITE NARRATIVE AND SITE CONDITIONS
The existing site is vacant with few trees and the ground is generally flat with slopes between o
percent and 2 percent. The proposed project will be the construction of a new residential
structure. The total site is 0.21 acres with the disturbed area being approximately 0.05 acres.
PRE DEVELOPMENT SITE CONDITIONS
The existing area will be treated as one drainage area. The existing drainage area consists of 0.21
acres and has a diverse drainage pattern. The pattern dominantly drains to the east toward the
adjacent saltwater marsh.
The existing storm water run-off volume currently leaving the site will be the maximum allowed
to impact any adjacent property during post developed storm events.
POST DEVELOPMENT SITE CONDITIONS
The proposed site will be treated as one drainage area and is not changed in pattern or size from
the pre developed state but will have an increase in impervious area. Run off for the residential
addition will be collected on site by sheet drainage and swales and the increase in run off will be
directed to the existing saltwater marsh.
ANALYSIS METHOD
The TR 55 method was utilized for the analysis of the pre -development and post -development
runoff for this site. Hydroflow Hydrographs software was utilized to perform these analyses and
for the purpose of sizing pipes, inlets, ditches and detention. The analysis was performed
utilizing the following data:
DRA/NAGE'AREA
PRE -DEVELOPMENT RUN-OFF COEFFICIENT = SEE EXHIBITS
POST -DEVELOPMENT RUNOFF COEFFICIENT = SEE EXHIBITS
IDF CURVES -- SAVANNAH
HYDROGRAPH GENERATION METHOD = RATIONAL
PRE -DEVELOPMENT SLOPE SEE EXHIBITS
POST DEVELOPMENT SLOPE -- SEE EXHIBITS
TIME OF CONCENTRATION PRE -DEVELOPMENT = 6 MINUTES
TIME OF CONCENTRATION POST -DEVELOPMENT = 6 MINUTES
It is also our opinion that the increase in run-off due to the addition will be retained on site for
storms up to and including the 25 year storm event and should not affect neighboring properties.
Run-off calculations accompany this report.
SOUTH SWALE CALCULATIONS
Enter Ma p Title
:09
INDEX
INTERMEDIATE
i
SUPPLEMENTARY tt _
DEPRESSION
Parcels Outline
Buildings
SAGS EIA GNQ MRRkN . REPRESENTATION. ON Gi3AAAxiY oTHE CONTExi, gEQUENCE,
nn ..nil. AMURAGYTINELINFSS Oa GOrrPt EfENE&S OEaxvpp THE pAYAaA4E aFFORYATgN plrpylpFa 1•Fl
Ri
SITS
i
9 o_nos 9.-------------
g,
Q 92
Miles
9 25 50
00
Feel y
Savannah Area Geographic Information gy em�ggGl
Sources: Esri, HERE, 6elmnre, 11SG5, inlelmap, in4enlen[ P Chip_, Hi=CAN, i Japan.
MEFl, Psri China (Hong atmgy, E.,,(Thailand], ErMapmylndH. ®tlpenS€raelWap cRRtrihulors.
and the Gls Uscr Community
i'��
1-�_�,���" � � -
�� �� 1
-� i � � � �
� � L� Y.
.� � l
��
., ,.:
rw` � � i ��� � xa ��_;� . � . �. .
-}
i f s t I'�- i.r � ,�''
POST - DOEV.
-SOO-TW SIDE S WALE
Project: TODD-SOUTH-SWALE. FW: SAVANNAHADF 7 hyd's 104-23-2016
Hydrograph Summary Report
Page 1
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cis)
Time
interval
(min)
Time to
peak
(min)
Volume
(tuft)
Return
period
(yrs)
Inflow
hyd(s)
Maximum
elevation
(ft)
Maximum
storage
(tuft)
Hydrograph
description
I
1
SCS Runoff
0.78
! 1
726
2,774
1
- -
—
—
TODD-SOUTH-SWALE-1
2
SCS Runoff
0.89
1
726
3,194
2
—
----
- --
TODD-SOUTH-SWALE-2
3
SCS Runoff
1.12
1
726
4,044
5
---
—
TODD-SOUTH-SWALE-5
4
SCS Runoff
1.34
1
726
4,906
10
-
--
TODD-SOUTH-SWALE-1
5
SCS Runoff
; 1.56
1
726
5,775
25
—
—
---
TODD-SOUTH-SWALE-2
6
SGS Runoff
1.79
1
726
6,649
50
—
--
TODD-SOUTH-SWALE-5
7
{
SCS Runoff
2.01
1
726
i
7,527
I
100
--
- —
----
TODD-SOUTH-SWALE-1
Prot. file: TODD-SOUI
13RUF file. SAVANNAHADF
Run date: 04-23-2016
Hydrograph Plot
Hyd. No. 1
= 1 min
TODD-SOUTH-SWALE-1-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 1 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0 %
Tc method
= USER
Total precip.
= 4.50 in
Storm duration
= 24 hrs
0.
0.
w
a 0.
0.
0.
0
English
Peak discharge = 0.78 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 2,774 cult
9 - SCS Runoff -1 Yr - Qp = 0.78 ds
5 10 15 20 25
Time (hrs)
Hyd. 1
Hydrograph Plot
Hyd. No. 2
TODD-SOUTH-SWALE-2-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 2 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 5.00 in
Storm duration
= 24 hrs
English
Peak discharge = 0.89 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 3,194 cuft
2 - SCS Runoff - 2 Yr - Qp = 0.89 ds
5 10 15 20 25
Time (hrs)
Hyd. 2
Hydrograph Plot
Hyd. No. 3
TODD -SOUTH -S WALE -5 -YR
Hydrograph type
= SCS Runoff
Storm frequency
= 5 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 6.00 in
Storm duration
= 24 hrs
1
1
CY
0
English
Peak discharge = 1.12 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 4,044 cult
3 - SCS Runoff - 5 Yr - Qp = 1.12 ds
5
10 15 20
Time (hrs)
Hyd. 3
25
Hydrograph Plot
Hyd. No. 4
TODD-SOUTH-SWALE-10-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 10 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 7.00 in
Storm duration
= 24 hrs
1
English
Peak discharge = 1.34 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of cone. (Te)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 4,906 cult
4 -SCS Runoff -1Q Yr -Qp= 1.34 cfs
0
0 5 10
Time (hrs)
Hyd. 4
15
20
25
I
Hydrograph Plot
Hyd. No. 5
TODD-SOUTH-SWALE-25-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 25 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 8.00 in
Storm duration
= 24 hrs
English
Peak discharge = 1.56 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 5,775 cuft
5 - SCS Runoff - 25 Yr - Qp = 1.56 cfs
10 15
Time (hrs)
Hyd. 5
20
i
i
25
2.0
�-
I
CY
i
0.5
0.0
0 5
10 15
Time (hrs)
Hyd. 5
20
i
i
25
Hydrograph Plot
Hyd. No. 6
TO D D -SO U TH -S WA LE -50 -YR
Hydrograph type
= SCS Runoff
Storm frequency
= 50 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 9.00 in
Storm duration
= 24 hrs
English
Peak discharge = 1.79 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 6,649 cult
6 - SGS Runoff - 50 Yr - QP = 1.79 ds
2.0 _
TI
[d
5 10 15 20 25
Time (hrs)
�' Hyd. 6
Hydrograph Plot
Hyd. No. 7
TODD-SOUTH-SWALE-100-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 100 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 10.00 in
Storm duration
= 24 hrs
English
Peak discharge = 2.01 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 7,527 cult
7 - SCS Runoff -100 Yr - Qp = 2.01 ds
61
10 15
Time (hrs)
Hyd. 7
20
25
Bentley Systems, Inc. Haestad Methods SolOW410pliftewMaster V8i (SELECTseries 1) [08.11.01.03]
4123/2016 11:19:50 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 1 of 2
Worksheet for TODD-SOUTH-SWALE
Project Description
Friction Method
Manning Formula
Solve For
Normal Depth
Input Data
Roughness Coefficient
0.025
Channel Slope
1 noon 24,
Left Side Slope
3300 ft./ft (H:V)
Right Side Slope
3.00 ft/ft (H:V)
Bottom Width
200
Discharge
2.01 ft'/s • --^� �� t'j R•
1
Results
Normal Depth
3.71 in
Flow Area
0.90 ft
Wetted Perimeter
3.95 ft
Hydraulic Radius
2.74 in
Top Width
3.85 ft
Critical Depth
0.27 ft
Critical Slope
0.01578 ft/ft
Velocity
2.22 ft/s
Velocity Head
0.08 ft
Specific Energy
0.39 ft
Froude Number
0.81
Flow Type
Subcritical
GVF Input Data
Downstream Depth
0.00 in
Length
0.00 R
Number Of Steps
0
GVF Output Data
Upstream Depth
0.00 in
Profile Description
Profile Headloss
0.00 ft
Downstream Velocity
Infinity ft/s
Upstream Velocity
Infinity ft/s
Normal Depth
3.71 in
Critical Depth
0.27 ft
Channel Slope
1.00000
Bentley Systems, Inc. Haestad Methods SolOW410pliftewMaster V8i (SELECTseries 1) [08.11.01.03]
4123/2016 11:19:50 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 1 of 2
Worksheet for TODD-SOUTH-SWALE
GVF Output Data
Critical Slope
0.01578 ft/ft
Bentley Systems, Inc. Haestad Methods SohHbydI&ftMewMaster V8i (SELECTseries 1) [08.11.01.03]
4123/2016 11:19:50 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 2 of 2
NORTH SWALE CALCULATIONS
3
DRIVE TO BE CON5TRUCTED OF
MATERIAL5 APPROVED BY THE CITY 0
TYBEE 15LAND PLANNING AND ZONING AND
BE 25' WIDE ( TOTAL MAX AT RIGHT OF
WAY LINE) OR A5 PER CITY OF TYBEE
15LAND ORDINANCE5
50/ALE "A"
7 1 LF 5WALE
AT 0.55%
PRB C 28 DATED N
THE F.1.R•M• g�26/06 THtS LOT F3 YfLTHl
.E BFE 13.0,
PAT
WALE W
5.0
If
I .27% r
( MAT H W -G E V5 A� �b
1 I3 18°11'21°v
NDA
I = 0.005 AC (98)
F = 0.014 AC (84)
a o- T= 0.0 1 9 AC
Cw = 55
k TT
y
TD 5.
�I15801
LLJ I I kB LOT
h'
AMU
ofcu
II try
_ - _Y8iry19 0
L � •s—
�r• ,_.{� - J �s.�,�' ,-' r . -_.� stay J r.� �... .= ....� � r-' r r-' r ,-� � •--' � � 7 1
as
Hydrograph Summary Report
Page 1
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
peak
(min)
Volume
(cuft)
Return
period
(Yrs)
Inflow
hyd(s)
Maximum
elevation
(ft)
Maximum
storage
(tuft)
Hydrograph
description
1
726
581
`�
40
--
TODD-NORTH-SWALE-1
1
I
i
SCS Runoff
0.15
—
{ —
Proj.
file: TODD-NORTH-SWALE
GOV
file: SAVANNAH.IDF
TR un
date: 04-28-2016
1 - SCS Runoff - 100 Yr - Qp = 0.15 cfs
0.20T - - - - - -- -- - - - --
1
101
5 10
Time (hrs)
Hyd. 1
15 20
25
GVF Output Data
Upstream Depth
Worksheet for TODD-NORTH-SWALE
Project Description
Profile Description
Friction Method
Manning Formula
Solve For
Normal Depth
Input Data
Downstream Velocity
Roughness Coefficient
0.025
Channel Slope
1.27000 0�
Left Side Slope
300 t1ft (H:V)
Right Side Slope
3.00 fttff (H:V)
Bottom Width
1.00 ft
Discharge
0.15
Results
Normal Depth
GI)
Flow Area
0.12 ft2
Wetted Perimeter
1.61 ft
Hydraulic Radius
0.92 in
Top Width
1.58 ft
Critical Depth
0.08 ft
Critical Slope
0.02283 ft/ft
Velocity
1.21 ft/s
Velocity Head
0.02 ft
Specific Energy
0.12 ft
Froude Number
0.76
Flow Type
Subcritical
GVF Input Data
Downstream Depth
0.00 in
Length
000 ft
Number Of Steps
0
GVF Output Data
Upstream Depth
0.00
in
Profile Description
Profile Headloss
0.00
ft
Downstream Velocity
Infinity
fus
Upstream Velocity
Infinity
ft/s
Normal Depth
1.15
in
Critical Depth
0.08
ft
Channel Slope
1.27000
Bentley Systems, Inc_ Haestad Methods SolNA11YAWPUIMMaster V8i (SELEC7series i) [08.11,01.()3]
412812016 1:19.53 PM 27 Siemons Company Drive Suite 200 W Watertown, CF 06795 USA +1-203.755.1666 Page 1 of 2
Worksheet for TODD-NORTH-SWALE
GVF Output Data
Critical Slope 0.02283 ft/ft
Bentley Systems, Inc. Haested Methods SolBentlDpfilewMaster V8i (SELECTseries 1) [08.11.01.03]
412812016 1:19:53 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2
SOILS
32" Cr 27N
32" V ;7'N
Soil Map—Bryan and Chatham Counties, Georgia 3
32" D` 29" N
513750 513780 513810 523840 513870 513900 513930 51396D 513990 514020 514050
3 3
b �
Map Smle: 1:1,510 W printed on A landsope (11" x 8.5") sheet — etersN
N 0 20 40 80 120 as
Feet
A0 50 100 200 300
Map pYDJaction, Web Memator Comer coadinates: WGS84 Edge tics: tlTM Zane 17N WGS84
I,s?m Natural Resources Web Soil Survey 3/29/2015
Conservation Service National Cooperative Soil Survey Page 1 o/ 3
32" d 27 N
Soil Map—Bryan and Chatham Counties, Georgia
MAP LEGEND
MAP INFORMATION
Area of Interest (A01)
Spoil Area
The soil surveys that comprise your AOI were mapped at 1:20,000,
v
Area of Interest (AOI)
Stony Spot
Waming: Soil Map may not be valid at this scale.
Solis
Soil Map Unit Polygons
Very Stony Spot
Enlargement of maps beyond the scale of mapping can cause
Wet Spot
misunderstanding of the detail of mapping and accuracy of soil line
..
Soil Map Unit Linea
The maps do not show the small areas of contrasting
0
Soil Map Unit Points
Otherplacement.
soils that could have been shown at a more detailed scale.
Specs
Special Line Features
Special
Point Features
Please rely on the bar scale on each map sheet for map
Blowout
Water Features
measurements,
Streams and Canals
Borrow Pit
Source of Map: Natural Resources Conservation Service
Transportation
Web Soil Survey URL: http://websolisurvey.nres.usda.gov
�ff
Clay Spot
+ r Rails
Coordinate System: Web Mercator (EPSG:3857)
Closed Depression
,. Interstate Highways
Maps from the Web Soil Survey are based on the Web Mercator
Gravel Pit
US Routes
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Gravelly Spot
Major Roads
Albers equal-area conic projection, should be used if more accurate
Landfill
calculations of distance or area are required.
Lccal Roads
Lava Flow
Background
This product is generated from the USDA-NRCS certified data as of
the version date(s) listed below.
Marsh or swamp
� Aerial Photography
Soil Survey Area: Bryan and Chatham Counties, Georgia
Mine or quarry
Survey Area Data: Version 9, Sep 17, 2014
Miscellaneous Water
Soil map units are labeled (as space allows) for map scales 1:50,000
Perennial Water
or larger.
Rock Outcrop
Date(s) aerial images were photographed: Mar 1, 2010—Jan 15,
2012
Saline Spot
The orthophoto or other base map on which the soil lines were
Sandy spot
compiled and digitized probably differs from the background
Severely Eroded Spot
imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
Sinkhole
Slide or Slip
Sodic Spot
t1Sb-k Natural Resources Web Soil Survey 3/29/2015
:rim Conservation Service National Cooperative Soil Survey Page 2 of 3
Sall Map.—Bryan and Chatham Counties, Georgia
Map Unit Legend
Bryan and Chatham Counties, Georgia (GA613)
Map Unit Symbol Map Unit Name Acres In A01 Percent of AOI
Ch Capers soils 0.91 8.846
Cue —` Chipley-Urban land complex 2.0'., — 20.1%
Tmt Tidal marsh, salty 7.3 — 71.4%{
Totals for Area of Interest i _ T _T� 10.21 — loco%
i si .N Natural Resources Web Soil Survey 312912015
5 Conservation Service National Cooperative Soil Survey Page 3 of 3
iw.
s: l
1W At
4FQ1,. '
ZONE AI
MAP SCALE 1" = 500'
250 0 500 1000
FEET
METE
- PANEL 0213F f_
FIRM
FLOOD INSURANCE RATE MAP
CHATHAM COUNTY,
GEORGIA
AND INCORPORATED AREAS
PANEL 213 OF 455
1 (SEE MAP INDEX FOR FIRM PANEL LAYOUT)
CONTAINS:
COM UNITY NSI 1IBE PANEL $VFFI
CHATHAM COUNTY 130030 0215 F
TYBEE ISLAND, CITY OF 135164 0213 F
Notice to User: The Map Number shown below
should be used when placing map orders; the
community Number shown above should be
used on insurance applications for the subject
community
4 tit�F�, MAP NUMBER
° 13051CO213F
7 EFFECTIVE DATE
o¢F
. j• <HNO ffGA
� . + SEPTEMBER 26, 2008
•FK Federal Cmcrgency MunugcmcntAgcnc}
This is an official copy of a portion of the abrnro referenced Mood map. it
was extracted using F -MIT On -lane. This map does not reflect changes
or amendments which may have been mack, subsequent to the date on the
title Mock. For the latest product Information about National Flood Insurance
"
Program Mood maps check the FEMA Flood Map Store at www msc.fema.no
VICINITY MAP SAGISAND PROJECT INFORMATION
Enter Map Title
r
ro � i --�
I 1�
I It
16
r ► csy ,�
! (291
' j
l rf 2 X40
i � ' °j
/ '
Buildings ��
SILL; MAK 5110 MR ""-RE"E5k"14" X. lA G0MA --TiSE Cprfl>:HT, SEOnENCE.
ACFAIPACY T,MEIdF.W C CO.— Hess OF ANY Of YnF OATA &lSE ECQN . EIOE EO 7•'i 9ai1
4 a.ot n.az
o,os
Miles
p 55 11C
Feet 2iF
www.SAGIS.c
Savannah Area Geographic IMormat€on System (SAG,
Soureey; Esli. HEM'- Oeieime, USGS. Inlumap, inaemenE P Gory., NRCAEF. Eui .lApan
IAETI, Esri Ghlna (Heng 1[on91. Esri (fhaiiand}, Mapmylndia, �gcenSaeetMap rnntriJ-p-
Antl Ne GFS User cmnmun;ry
P/N: 4-001 G -02-032
Owner's Name: To 00 ANO TAe-n (,ky c µ Z 1a
Owner's Addre55 /: �C
Owners Address 2: 17C:, 5 CAMPBELL AVE
Owners Address 3.-
City.
:City TYBEE ISLAND
State: GA
Zip Code: 3 13 28
Property Address: 0 S CAMPBELL AVE TY5EE ISLAND
Street Lighting:
Municipal Code: 4
Melghborhood Code: I
Land Units: 30
Land )lrontage: 30
Land Depth: 71
Land type: PF
Real (state Value: 177700
Land Value: 177700
Building Value: 0
Property Class: R
Land Use Code: 01
Sale Price: 0
Sale Year.
Sale Month:
Sale Da),
Transit Code: 0
APC Code:
Commernal Category.
Agent:
Total A55e55meat: 7 1080
Legal Description /: LOT 32-8 HORSE PEN HAMMOCK
Legal Description 2: BOOK 50 PG 15
Zoning Code:
Sale or Booh.
Sale or Page:
Base Year Value: 0
Base Year Value w/ CPI: 0
CAMA Land Value: 177700
CAMA M5c Value: 0
CAMA 6u,ldrng Value: 0
CAMA Total Value: 177700
Cfl TXFER filler. N u I I
Tax Allocation District (TAD):
TAD Base Year Value: 0
Enterprise Zone:
GData EZ
TCR Date: 5/8/2015
Street Number. 0
Street Short Name: CAMPBELL
Street Prefix: 5
Unit Number. Null
Street Name: CAMPBELL
Calculated Acreage: 0.205958
Owner Name: BRAGG JOHN D
Full Addre55: 0 5 CAMPBELL AVE
Property Address 2: 0 S CAMPBELL AVE TYBEE ISLAND
Property Zlp Code: 3 1328
Calculated Zoning: R-2
Zoning De5crlptlon: One and Two Family Re5ldenGe5
Aldermdn: 0
Commissioner- 4
IVelglhborhood: T222 TYBEE HORSE PEN
Land Use: SINGLE FAMILY RES
Calculated Flood Zone: AF
Elementary School: HOWARD
Middle School: COASTAL
High School: ISLANDS
Voter Prennct: 4- 1 OC
Street Suffix: AVE
Alder Text.: None
layerName: Parcels Outline
REPORT`
HYDROLOGY REPORT
For The Proposed
Residential Project
176 South Campbell Avenue
Tybee Island, Georgia
SITE NARRATIVE AND SITE CONDITIONS
The existing site is vacant with few trees and the ground is generally flat with slopes between 0
percent and 2 percent. The proposed project will be the construction of a new residential
structure. The total site is 0.21 acres with the disturbed area being approximately 0.05 acres.
PRE DEVELOPMENT SITE CONDITIONS
The existing area will be treated as one drainage area. The existing drainage area consists of 0.21
acres and has a diverse drainage pattern. The pattern dominantly drains to the east toward the
adjacent saltwater marsh.
The existing storm water run-off volume currently leaving the site will be the maximum allowed
to impact any adjacent property during post developed storm events.
POST DEVELOPMENT SITE CONDITIONS
The proposed site will be treated as one drainage area and is not changed in pattern or size from
the pre developed state but will have an increase in impervious area. Run off for the residential
addition will be collected on site by sheet drainage and swales and the increase in run off will be
directed to the existing saltwater marsh.
ANALYSIS METHOD
The TR 55 method was utilized for the analysis of the pre -development and post -development
runoff for this site. Hydro#low Hydrographs software was utilized to perform these analyses and
for the purpose of sizing pipes, inlets, ditches and detention. The analysis was performed
utilizing the following data:
DRAINAGEAREA
PRE -DEVELOPMENT RUN-OFF COEFFICIENT = SEE EXHIBITS
POST -DEVELOPMENT RUN-OFF COEFFICIENT = SEE EXHIBITS
IDF CURVES — SAVANNAH
HYDROGRAPH GENERATION METHOD = RATIONAL
PRE -DEVELOPMENT SLOPE — SEE EXHIBITS
POST DEVELOPMENT SLOPE - SEE EXHIBITS
TIME OF CONCENTRATION PRE -DEVELOPMENT = 6 MINUTES
TIME OF CONCENTRATION POST -DEVELOPMENT = 6 MINUTES
It is also our opinion that the increase in run-off due to the addition will be retained on site for
storms up to and including the 25 year storm event and should not affect neighboring properties.
Run-off calculations accompany this report.
SOUTH SWALE CALCULATIONS
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POST - DEV,
SD�7Tl� SIDE- SwAL-E-
0 m m 0
! Project: TODD-SOUTH-SWALE. FDV: SAVANNAHJDF
7 hyd's
0
04-23-2016
Hydrograph Summary Report
Page 1
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
peak
(min)
Volume
(cult)
Return
period
(yrs)
Inflow
hyd(s)
Maximum
elevation
(ft)
Maximum
storage
(cult)
Hydrograph
description
1
SCS Runoff
0.78
1
726
2,774
1
—
— -
- -
TODD-SOUTH-SWALE-1 �!
2
SCS Runoff
0.89
1
726
3,194
2
--
—
--
TODD-SOUTH-SWALE-2
3
SCS Runoff
1.12
1
726
4,044
5
—
--
--
TODD SOUTH-SWALE-5
4
SCS Runoff
1.34
1
726
4,906
10
—
--
--
TODD-SOUTH-SWALE-1
5
SCS Runoff
1.56
1
726
5,775
25
—
-
- -
TODD-SOUTH-SWALE-2
6
SCS Runoff
1.79
1
726
6,649
50
—
—
--
TODD-SOUTH-SWALE-5
7
SCS Runoff
2.01
1
726
7,527
100
--
—
TODD-SOUTH-SWALE-1
Proj. file: TODD-SOUTH-SWALE�GHW file: SAVANNAH.lDF
Run date. 04-23-2016
Hydrograph Plot
Hyd. No. 1
= 1 min
TODD-SOUTH-SWALE-I-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 1 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0 %
Tc method
= USER
Total precip.
= 4.50 in
Storm duration
= 24 hrs
E
X
U 0
a
.X
English
Peak discharge = 0.78 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 2,774 cuft
1 - SCS Runoff -1 Yr - Qp = 0.78 cfs
5 10 15 20
Time (hrs)
Hyd. 1
I
25
Hydrograph Plot
Hyd. No. 2
TODD-SOUTH-SWALE-2-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 2 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 5.00 in
Storm duration
= 24 hrs
1
0
to 0
V
CY
1 0
0
0
1 0
English
Peak discharge = 0.89 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 3,194 cult
2 - SCS Runoff - 2 Yr - Qp = 0.89 cfs
5 10 15 20 25
Time (hrs)
' Hyd. 2
Hydrograph Plot
English
Hyd. No. 3
TODD-SOUTH-SWALE-5-YR
Hydrograph type
= SCS Runoff
Peak discharge
= 1.12 cfs
Storm frequency
= 5 yrs
Time interval
= 1 min
Drainage area
= 0.25 ac
Curve number
= 87
Basin Slope
= 1.0%
Hydraulic length
= 125 ft
Tc method
= USER
Time of conc. (Tc)
= 6 min
Total precip.
= 6.00 in
Distribution
= Type III
Storm duration
= 24 hrs
Shape factor
= 300
Total Volume = 4,044 cult
3 - SCS Runoff - 5 Yr - Qp = 1.12 cfs
M
5 10 15 20
Time (hrs)
Hyd . 3
i
i
25 1
Hydrograph Plot
Hyd. No. 4
TO DD-SOUTH-SWALE-10-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 10 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 7.00 in
Storm duration
= 24 hrs
English
Peak discharge = 1.34 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of cone. (Tc)
= 5 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 4,906 tuft
4- SCS Runoff -10Yr-Qp=1.34 ds
Q
C1
I
0.
5 10 15 20
Time (hrs)
Hyd. 4
25
Hydrograph Plot
Hyd. No. 5
= 1 min
TODD-SOUTH-SWALE-25-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 25 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 8.00 in
Storm duration
= 24 hrs
English
Peak discharge = 1.56 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 5,775 cuft
I
5 - SCS Runoff - 25 Yr - Qp = 1.56 ds
0 5 10 15 20 25
Time (hrs)
Hyd. 5
Hydrograph Plot
Hyd. No. 6
TODD-SOUTH-SWARE-50-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 50 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 9.00 in
Storm duration
= 24 hrs
2.
1.
English
Peak discharge = 1.79 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of conc. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 6,649 cult
6 - SCS Runoff - 50 Yr - Qp = 1.79 ds
Lei
M
5 10 15 20
Time (hrs)
Hyd. 6
25
Hydrograph Plot
Hyd. No. 7
TODD-SOUTH-SWALE-100-YR
Hydrograph type
= SCS Runoff
Storm frequency
= 100 yrs
Drainage area
= 0.25 ac
Basin Slope
= 1.0%
Tc method
= USER
Total precip.
= 10.00 in
Storm duration
= 24 hrs
2.0
Cy
0.5--
0.0-
0
.50.00
English
Peak discharge = 2.01 cfs
Time interval
= 1 min
Curve number
= 87
Hydraulic length
= 125 ft
Time of cone. (Tc)
= 6 min
Distribution
= Type III
Shape factor
= 300
Total Volume = 7,527 tuft
7 - SCS Runoff -100 Yr - Qp = 2.01 ds
5 10 15
Time (hrs)
e Hyd. 7
20
25
Worksheet for TODD-SOUTH-SWALE
Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient
Channel Slope-y,nnnn ci
Left Side Slope ^ ft/ft (H:V)
Right Side Slope 3.00 ft/ft (H:V)
Bottom Width-ZZL-4
Discharge 2.01 ft3//s - too � 9.
Results
3.71 In
Normal Depth
Flow Area
0.90 ft'
Wetted Perimeter
3.95 ft
Hydraulic Radius
2.74 in
Top Width
3.85 It
Critical Depth
0.27 ft
Critical Slope
0.01578 ft/ft
Velocity
2.222.22 ft/s
Velocity Head
0.08 ft
Specific Energy
0.39 ft
Froude Number
0.81
Flow Type
Subcritical
GVF Input Data
Downstream Depth
0.00 in
Length
0.00 ft
Number Of Steps
0
GVF Output Data
Upstream Depth
0.00 in
Profile Description
Profile Headloss
0.00 ft
Downstream Velocity
Infinity ft/s
Upstream Velocity
Infinity ftis
Normal Depth
3.71 in
Critical Depth
0.27 ft
Channel Slope
1.00000 %
aentley Systems, Inc. Haestad Methods S010kneop6tswMaster V81(SELECTseries 1) [08.11.01.03]
4/2312016 11:19:50 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2
Worksheet for TODD-SOUTH-SWALE
GVF Output Data
Critical Slope
0.01578 ft/ft
Bentley Systems, Inc. Haestad Methods SohRixftU FtewMaster V8i (SELECTseries 1 ) [08.11.01.03]
4/2312016 11:19:50 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2
NDRTH SWALE CALCULATIONS
3
I 5WALE "B^ -
DRIVE TO BE CONSTRUCTED OF I I _ — —€ r F 5. L
MATERIALS APPROVED BY THE CITY OF
I AT I .2795 j
TYBEE ISLAND PtANN1NG AND ZONING AND r f�
BE 25' WIDE ( TOTAL MAX AT RIGHT OF MATCH G ELEV 5
I — _--- FG 5. r r r)
WAY LINE ) OR A5 PER CITY OF TYBEE I I
I5LAND ORDINANCES
F
D .7 — NDA
I = 0.005 AG (98)
IP=0.014AC(54)
a" p T=0.Ci 9AC r r r r —
FG 5. Gv = 88
l �I
I TD 5.
II t� 1
SWALE
IN,
= 71 LF SWALE > I I TF5
AT 0.8595
r« I I La's t2—B I
cQ t I
0
II1 +y —'k --
PRB C 28 r i1g'61 02 9.04' n ! 1
08 �T 19 ',
928/ o, --Nye
TjW F.1.R.UN
1[, DATED I TH15
E 13.0. f
as
,o op
"-
Project: TODD-NORTH-SWALE. FVDV: SAVANNAH.IDF 1 hyd's 04-28-2016
Hydrograph Summary Report
Page 1
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
peak
(min)
Volume
(cult)
Return
period
(Yrs)
Inflow
hyd(s)
Maximum
elevation
(ft)
Maximum
storage
(cult)
Hydrograph
description
1
726
581
TODD-NORTH-SWALE-1
1
I
SCS Runoff
i
I
Proj. file: TODD-NORTH-SWALE.Gi3W
fife: SAVANNAH.IDF
Run date: 04-28-2016
111
A
oY
0..
0.c
1 - SCS Runoff - 100 Yr - Qp = 0.15 cfs
IU 15 20
Time (hrs)
y Hyd. 1
25
i
Worksheet for TODD-NORTH-SWALE
Project Description
Friction Method
Solve For
Input Data
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Bottom Width
Discharge
Results
Normal Depth
Flow Area
Wetted Perimeter
Hydraulic Radius
Top Width
Critical Depth
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Flow Type
GVF Input Data
Downstream Depth
Length
Number Of Steps
GVF Output Data
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Manning Formula
Normal Depth
Subcritical
0.025
1.27000
3.00
ft/ft (H: V)
,! —00
,ftlft (H: V)
1,00
ft
0.15
felsZ>C) i�-
1.15 7:�
0.12 ft2
1.61 ft
0.92 in
1.58 ft
0.08 ft
0.02283 ft/ft
1.21 ftfs
0.02 ft
0.12 ft
0.76
0.00 in
0.00 ft
0
0.00 in
a00 ft
Infinity fus
Infinity ftls
1.15 in
0.08 ft
1.27000
Bentley Systems, Inc. Haestad Methods SohHkrrfNRPhlewMaster V8i (SELECTseries 1) [08.11.01.03]
4/2812016 1:19:53 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 VSA +1-203.755-1666
Page 1 of 2
GVF Output Data
Critical Slope
Worksheet for TODD-NORTH-SWALE
0.02283 ft/fl:
Bentley Systems, Inc. Haestad Methods SaA@i3t IMpfitewMaster V81(SELECTseries 1) 108.11.01.03]
4/2812016 1:19:53 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2
SOILS
32° Of 29'N
32' U 77' N
3 Soil Map—Bryan and Chatham Counties, Georgia ;
sa €3
513750 513760 513810 513840 513970 513900 513930 513960 513990 514020
3
Map Scale: 1:1S10 iP printed on A landscape (11" x 8.5") sheet.
--Meters
N
0 20 40 so 120
0 so 100 200 300
Map projection: Web Mer rotor Comer coordinate,; WGS84 Edge tics: UTM Zone 17N WG -SM
t stm Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
32` 029 N
n
n
32° 922"N
514050
N
3129/2015
Page 1 of 3
Soil Map—Bryan and Chatham Counties, Georgia
MAP LEGEND
MAP INFORMATION
Area of Interest (AOI)
Spoil Area
The soil surveys that comprise your AOI were mapped at 1:20,000.
Area of Interest (AOI)
Stony Spat
Warning: Soil Map may not be valid at this scale.
Soils
Soil Map Unit Polygons
Very Stony Spot
Enlargement of maps beyond the scale of mapping can cause
Wet Spot
misunderstanding of the detail of mapping and accuracy of soil line
..
Soil Map Unit Lines
placement. The maps do not show the small areas of contrasting
13
Soil Map Unit Points
Other
sails that could have been shown at a more detailed scale.
Special Line Features
Special
Point Features
Please rely on the bar scale on each map sheet for map
Blowout
Water Features
measurements.
Streams and Canals
w
Borrow Pit
Source of Map: Natural Resources Conservation Service
Transportation
Web Soil Survey URL: http:itwebsoilsurvey.nres,usda.gov
Clay Spot
Rails
Coordinate System: Web Mercator (EPSG:3857)
Closed Depression
.. Interstate Highways
Maps from the Web Soil Survey are based on the Web Mercator
Gravel Pit
US Routes
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Gravelly Spot
Major Roads
Albers equal-area conic projection, should be used if more accurate
Landfill
calculations of distance or area are required.
Lccal Roads
Lava Flow
This product is generated from the USDA-NRCS certified data as of
Background
the version date(s) listed below.
Marsh or swamp
� Aerial Photography
Soil Survey Area: Bryan and Chatham Counties, Georgia
Mine or Quarry
Survey Area Data: Version 9, Sep 17, 2014
Miscellaneous Water
Soil map units are labeled (as space allows) for map scales 1:50,000
Perennial Water
or larger.
Rock Outcrop
Date(s) aerial images were photographed: Mar 1, 2010—Jan 15,
2012
_i-
Saline Spot
The orthophoto or other base map on which the soil lines were
Sandy Spot
compiled and digitized probably differs from the background
Severely Eroded Spot
imagery displayed on these maps. As a result, some minor shifting
of map unit boundaries may be evident.
Sinkhole
Slide or Slip
r�
Sodic Spot
t:sim Natural Resources Web Soil Survey 3/29/2015
Conservation Service National Cooperative Soil Survey Page 2 of 3
Sal Map—Bryan and Chatham Counties, Georgia
Map Unit Legend
Bryan and Chatham Counties, Georgia (GAM)
Map Unit Symbol Map Unit Name I Acres in AOI Percent of AOI
Ch
Capers Solis
O.g
8.5%
Cur; i
htpley-Urban land complex
— -- —�—
2.0
20.1%'
i
Tml
Tidelmersh,salty
7.9'
71.11
Totals for Aran of Interest'
10.2 i
100,0%
osa1 Natural Resources Web Soil Survey 31292015
dli'llill Conservatlon Service National Cooperative Soil Survey Page 3 of 3
" ; . t i , P A N E L 0 2 1 3 F
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