HomeMy Public PortalAbout2022-33 Authorizing to issue a work order to AECOM Technical Services, Inc for the preparation of a probable cost evaluation report relating to System-Wide stormwater drainage upgradesRESOLUTION NO. 2022-33
A RESOLUTION OF THE VILLAGE COUNCIL OF THE
VILLAGE OF KEY BISCAYNE, FLORIDA, AUTHORIZING
THE VILLAGE MANAGER TO ISSUE A WORK ORDER TO
AECOM TECHNICAL SERVICES, INC. FOR THE
PREPARATION OF A PROBABLE COST EVALUATION
REPORT RELATING TO SYSTEM -WIDE STORMWATER
DRAINAGE UPGRADES IN AN AMOUNT NOT TO
EXCEED $359,769; AND PROVIDING FOR AN EFFECTIVE
DATE.
WHEREAS, on October 9, 2019, the Village of Key Biscayne ("Village") issued Request
for Qualifications No. 2020-03 ("RFQ") for design criteria professional services for stormwater
utility and right-of-way improvements (the "Services"); and
WHEREAS, pursuant to the RFQ, the Village Council adopted Resolution No. 2020-10
on February 11, 2020, selecting AECOM Technical Services, Inc. (the "Consultant") to provide
the Services and authorizing the Village Manager to execute an agreement with Consultant; and
WHEREAS, the Village and the Consultant entered into a Professional Services
Agreement for the Services pursuant to the RFQ (the "Agreement"); and
WHEREAS, the Consultant has provided a proposal, attached hereto as
Exhibit "A" (the "Proposal") to perform the Services for the preparation of a probable cost
evaluation report relating to system -wide stormwater drainage upgrades (the "Project"); and
WHEREAS, the Village Council desires to authorize the Village Manager to issue a work
order for the Project consistent with the Proposal attached hereto as Exhibit "A" and the Agreement
in an amount not to exceed $359,769; and
WHEREAS, the Village Council finds that this Resolution is in the best interest and
welfare of the residents of the Village.
NOW, THEREFORE, BE IT RESOLVED BY THE VILLAGE COUNCIL OF THE
VILLAGE OF KEY BISCAYNE, FLORIDA, AS FOLLOWS:
Section 1. Recitals. That each of the above -stated recitals are hereby adopted,
confirmed, and incorporated herein.
Section 2. Authorization. That the Village Council hereby authorizes the Village
Manager to issue a work order for the Project consistent with the Proposal attached hereto as
Exhibit "A" and the Agreement in an amount not to exceed $359,769.
Section 3. Effective Date. That this Resolution shall be effective immediately upon
adoption.
PASSED and ADOPTED this 26th day of July , 2022.
MICHAEL W. 1 Y, MAYOR
ATTEST:
c6C� nom- .K�,
JOCEL B. KOC
VILLAGE CLERK
APPROVED AS TO FORM AND LEGAL SUFFICIENCY:
WEISS SEROTA HELFMAN COLE & BIERMAN, P.L.
VILLAGE ATTORNEY
Page 2 of 2
AECOM 'el=ered.
Mr. Jake Ozyman, MSCM, PE, PMP, ENV SP, CFM
Public Works Director
Village of Key Biscayne
88 West McIntyre Street
Key Biscayne, FL 33149
Village of Key Biscayne Stormwater Program
Alternative Analysis Drainage Assessment
Dear Mr. Ozyman,
AECOM
2 Alhambra Plaza, Suite 900
Coral Gables, Florida 33134
aecom.com
May 6, 2022
This proposal constitutes AECOM's scope of services for the Alternative Analysis Drainage Assessment of
the Village's stormwater system. AECOM assumes this work will be authorized as a project under our
Professional Service Agreement dated June 4, 2020, as a result of the Request for Qualifications No.
202003.
Attached is Exhibit A (Scope of Services) and Exhibit B (Compensation) for your review and approval. We
are excited to be working with you on this very important project. Should you have any questions or need
any additional information concerning this scope and fee, please contact me or Erik M. Alcantara, PE, PMP,
ENV SP at 305-444-4691.
Sincerely,
Fernando A. Vazquez, PE
Vice President — SER Water
AECOM
T: 305-444-4691
M: 954-261-7188
E: Fernando.Vazquez@aecom.com
EXHIBIT A
Scope of Services
Alternative Analysis Drainage Assessment
Background — As part of The Village of Key Biscayne's (Village) previously completed 2021 Stormwater
Master Plan Evaluation, the Village's ability to manage potential sea level rise through anticipated climate
change will augment the Village's effort to protect vulnerable assets. On February 8, 2022, the Village
Council approved AECOM's recommendations for level of service, design storm, and sea level rise
projection. The approved recommendations include the following:
1. Level of Service: Keep roads passable for traffic.
a. Ponding Depth: 0-0.5 feet
b. Ponding Duration: 6-12 hours
c. Ponding Location: Swales
2. Design Storm: 10 -year, 24 -hour storm event (or 8 inches of rainfall within 24 hours)
3. Sea Level Rise Project: NOAA Intermediate High
The Village's goal is to increase the current level of service for drainage that states there shall be no
flooding of the crown of road during the 10 -year, 24 -hour storm event (or 8 inches of rainfall within 24
hours); and to plan for future climate conditions in order to provide a resilient system. Solutions may
include modifications to infrastructure such as adjusting roadway elevations, increasing pipe sizes,
increasing the number of drainage inlets, pump stations, etc. The study area is within the boundaries of
the Village of Key Biscayne and is generally located on an island approximately six (6) miles into the
Biscayne Bay and connects to the mainland via the Rickenbacker Causeway. The area generally consists
of residential land uses with an approximate total area of 704 acres.
The following tasks are proposed to provide the alternative analysis and drainage report.
Task 0001- Project Management
Effective project management is the key to a successful project and includes project administration,
project review meetings with the Village staff, project kick-off meeting, and project deliverable quality
assurance and control (QA/QC) plan. The following services will be included:
1. General project administration includes project control and team coordination, including timely
communication with Village staff. Also, AECOM will monitor progress of work on a weekly basis to
monitor compliance with established schedule, budget, and work quality requirements. In addition,
subconsultant coordination is included in the project administration.
2. Due to the many elements that are needed to be reviewed and planned to produce the necessary
planning documents for the drainage assessment, monthly meetings are proposed to coordinate with
Village staff to ensure that information is being conveyed to each party to produce a successful plan.
Monthly meetings will be held by conference call. AECOM will prepare meeting minutes and agendas
for all the meetings and submit them to the Village.
3. Conducting a Project kick-off meeting virtually upon receipt of Notice to Proceed. At this meeting,
AECOM will coordinate with the Village to obtain the documents needed to be reviewed and
incorporated into the assessment.
AECOM — May 2022
Page 1 of 7
Task 0002 — Data Collection
AECOM will collect existing stormwater data within the project area. Data collection and evaluation will
start with obtaining the available resources from the Village of Key Biscayne, which consists of GIS data
from the Village's database, as -built drawings of recently installed drainage systems, and updated
information from the Village's complaint database since the development of the 2021 Stormwater Master
Plan Evaluation Report for the assessment area. In addition, the data will include existing South Florida
Water Management District (SFWMD) permit information, review of seasonal high groundwater data,
review of existing Village infrastructure along with any existing operation and maintenance protocols, soil
survey information, bathymetry at outfall locations, FEMA floodplain information, and any other
information the Village may provide to assist with the assessment.
A field visit to the project site is proposed to verify the findings of the data collection. This field visit
proposes one day of field time with two staff members.
Task 0003 — Geotechnical
AECOM's subconsultant, Geosol, Inc. (Geosol), will provide geotechnical engineering services. The
geotechnical field services will include borehole exfiltration tests in accordance with South Florida Water
Management District "Usual Open -Hole Test" and Standard Penetration Test (SPT) borings in accordance
with ASTM D-1586. Upon termination of the borings, all holes will be backfilled with grout to the ground
surface and the site will be restored to its original condition.
The Field Exploration and Laboratory Testing Programs will include the following tasks:
1. Perform site reconnaissance, locate, and coordinate for existing utilities that may interfere with the
drilling operations.
2. Obtain a Right of Way permit from the Village of Key Biscayne to perform the soil borings.
3. Provide traffic control in accordance with the Index 600 series of the FDOT Roadway and Traffic Design
Standards.
4. Perform a total of five (5) Borehole Exfiltration tests at depths of 15 feet below existing grades for
determination of soil hydraulic conductivity values.
5. Perform a total of two (2) Standard Penetration Test (SPT) borings on land to depths of 10 feet below
existing grades for Determination of Seasonal Highwater Elevations and Explore Soil Stratigraphy.
6. Perform one (1) SPT boring on land to a depth of 20 feet below existing grades for Determination of
Seasonal Highwater Elevations and Explore Soil Stratigraphy.
7. Measure the groundwater levels at the test boring locations.
8. Backfill the boreholes using cement grout mix.
9. Visually examine all recovered soil/rock samples in the laboratory. Geosol will examine all recovered
soil and rock samples. The laboratory testing will include natural moisture content, grain -size analysis,
percent passing the #200 sieve, organic content determination, corrosion series testing (pH,
resistivity, sulfates, and chlorides). The tests will be conducted in accordance with applicable ASTM
and FDOT standards.
A geotechnical engineering report of Geosol's findings and recommendations will be prepared and
submitted at the conclusion of the study. The report will be prepared, signed, and sealed by a professional
engineer registered in the State of Florida. The report will specifically contain the following information:
AECOM — May 2022
Page 2 of 7
1. A plan of the site showing the location of the test locations.
2. A brief review of Geosol's test procedures and the results of the testing conducted.
3. Estimated subsurface profiles as necessary to illustrate subsurface conditions including standard
penetration resistance test data and groundwater levels.
4. A review of surface features and site conditions that could affect construction and site preparation.
5. General evaluation of the site considering the proposed project and estimated subsurface conditions.
6. Recommendations for site preparation and construction of compacted fills or backfills.
7. Results of laboratory testing.
8. Results of borehole exfiltration testing.
9. Anticipation of groundwater levels and methods for handling it during construction.
10. Derivation of soil/rock parameters for the design of the proposed improvements.
11. Foundation analysis and recommendations for the proposed improvements.
12. Construction considerations.
Task 0004 — Existing Conditions Model
Once data collection has been completed, including geotechnical and survey data, a meeting will be held
with the Village by conference call to review the data collected and to confirm that all available data is
being utilized for the assessment. AECOM will examine the sub basins utilized within the previous XPSWM
model and make modifications as needed based on information found in the data gathering phase of the
project. A preliminary sub basin map will be developed and will be provided at a virtual meeting to
confirm the level of detail within the assessment.
AECOM will develop an existing conditions stormwater model considering the main objectives of the
assessment. The boundary conditions will be verified ensuring that all offsite conditions are considered
and may result in re -defining the limits of the assessment boundary. ArcGIS tools will be used extensively
in the development of the model and the model parameters. LIDAR will be used to confirm and/or modify
the sub -basins, to create stage -area elevation tables required to compute the storage available within
each basin, and to prepare the land use calculations. Currently, the LIDAR information proposed to be
utilized is the information available on Miami -Dade County Open Data Hub and was captured in 2018. A
map characterizing the stormwater and natural drainage basins inside the assessment limits will be
developed and used for model setup. Hydrologic and hydraulic modeling will be conducted using
Advanced Interconnected Channel and Pond Routing (iCPR) modeling program Version 4.
Once the model setup is completed, AECOM will perform calibration and verification for storm events
selected and agreed upon with the Village. A large storm event or an event that has recorded data will be
used to calibrate the model by comparing model results with recorded stage data and adjusting model
input parameters.
AECOM's subconsultant, GIT Consulting, LLC (GIT), will perform QA/QC and serve as an extension of
AECOM's staff for this task.
AECOM — May 2022
Page 3 of 7
Task 0005 — Alternative Analysis Runs
An alternatives analysis shall be performed to evaluate an appropriate solution to address level of service
concerns along with sea level rise. The current level of service for drainage states there shall be no flooding
of the crown of road during the 10 -year, 24 -hour storm event (or 8 -inches of rainfall within 24 -hour).
Additionally, the sea level rise projection to be used is the NOAA Intermediate High.
AECOM will develop up to three (3) scenarios to improve level of service for the project area and provide
a comparative analysis of discharges, stages, flood depths and elevations, and determine the performance
of each scenario against Task 0005 Existing Conditions Model. The scenarios will be built off lessons
learned from the Discharge and Storage Opportunities Technical Memo provided to the Village by AECOM.
The analysis will also include a cost estimate for each alternative.
AECOM's subconsultant, GIT, will perform QA/QC and serve as an extension of AECOM's staff for this task.
Task 0006 — Final Report
AECOM will document the drainage assessment in a deliverable that will compile the following:
• Project methodology:
The AECOM team will provide a detailed description of the methods used to develop the drainage
assessment. Assumptions used for the existing and proposed stormwater drainage models will be
explained in detail. The methodology used to calculate storage volume within the sub -drainage areas
will be explained. The stage area calculations for the existing and proposed models will be provided;
additionally, a breakdown of the areas in acres of each sub -basin and the proposed system with its
respective sub -basins will be explained/provided. The curve number assumed for the study area will
be provided; moreover, the background for this and similar assumptions will be explained in detail.
A map characterizing the stormwater and natural drainage basins inside the assessment limits will be
developed and used for model setup. Hydrologic and hydraulic modeling will be conducted using
Advanced Interconnected Channel and Pond Routing (iCPR) modeling program Version 4. Once the
model setup is completed, AECOM will perform calibration and verification for storm events selected
and agreed upon with the Village. A large storm event or an event that has recorded data will be used
to calibrate the model by comparing model results with recorded stage data and adjusting model
input parameters.
• Results and analysis of the tasks defined under "scope of services".
AECOM will develop an existing conditions stormwater model considering the main objectives of the
assessment. The boundary conditions will be verified ensuring that all offsite conditions are
considered and may result in re -defining the limits of the assessment boundary. ArcGIS tools will be
used extensively in the development of the model and the model parameters. LIDAR will be used to
confirm and/or modify the sub -basins, to create stage -area elevation tables required to compute the
storage available within each basin, and to prepare the land use calculations.
The AECOM team will also develop up to three (3) scenarios to improve level of service for the project
area and provide a comparative analysis of discharges, stages, flood depths and elevations, and
determine the performance of each scenario against Task 0005 Existing Conditions Model. The
AECOM — May 2022
Page 4 of 7
scenarios will be built off lessons learned from the Discharge and Storage Opportunities Technical
Memo provided to the Village by AECOM. The analysis will also include a cost estimate for each
alternative.
• Model results with narrative.
AECOM will provide comprehensive model results for the existing conditions model and the three (3)
proposed scenarios. The narrative for each alternative will include recommendations, advantages,
and disadvantages. The following appendices with comprehensive model results will be provided:
a. Nodal Diagram.
b. iCPR Input Report.
c. iCPR Node Min/Max Report.
d. iCPR Link Min/Max Report.
e. Full Size Maps.
• Prioritized Capital Improvement Project (CIP) list for flood control.
A phasing plan will be prepared to help the Village prioritize the order in which the proposed projects
should be constructed. As funds become available, it is important that projects are constructed in a
prioritized sequence; AECOM will support the Village with this critical task.
• Cost Estimates for CIP with assumptions.
AECOM will provide a Class 4 Opinion of Probable Construction Cost, as classified by the American
Association of Cost Engineering (AACE), for each proposed drainage project. Per AACE criteria, a Class
4 Opinion of Probable Construction Cost is between 1% to 15% of project completion and is
anticipated to be within a range of -30% below and +50% above the actual cost of construction.
Assumptions used to develop the Opinions of Probable Construction Cost will be documented and
explained in detail.
AECOM will also create an Executive Summary highlighting the most important aspects of the assessment.
After the Village has reviewed the final report, AECOM will prepare for and attend a final workshop with
Council to review the findings of the assessment.
AECOM's subconsultant, GIT, will perform QA/QC and serve as an extension of AECOM's staff for this task.
Task 0007 — Community Meetings
Throughout the course of the Alternative Analysis Drainage Assessment, AECOM anticipates two (2)
community meetings with Village residents and stakeholders. The purpose of the first meeting with the
community will be to introduce the purpose of AECOM's work. The purpose of the second meeting with
the community will be to present the proposed alternatives. These meetings will be in -person and will
include a presentation to inform the community of the future drainage improvements. AECOM will have
three (3) staff members attend each meeting. After each meeting, AECOM will prepare a Debrief
Document that will contain an executive summary and the meeting outcomes (including attendance and
highlights).
Task 0008 — Council Presentations
This task includes the preparation of two (2) presentations to the Village Council. The Council
presentations will be coordinated/programmed with Village staff as needed. AECOM anticipates one (1)
AECOM — May 2022
Page 5 of 7
presentation to inform Council on the progress of the Alternative Analysis Drainage Assessment and one
(1) presentation to summarize the Alternative Analysis Drainage Assessment results.
Assumptions
• LIDAR information to be used is from Miami -Dade County, collected in 2018 at a 5 -ft resolution
topographic elevation DEM in NAVD 1988. Should a more up to date LIDAR be available, then
AECOM will utilize it.
• Pipe inverts in open bodies of water are not proposed to be obtained by the Village's survey
vendor. The invert from the structure within the road will be used to assume the invert of the
pipe in the open water areas.
• Drainage design assumes that the drainage components will be mostly for storage in the use of
swales and exfiltration trench with limited conveyance components.
• Survey information is limited, and AECOM proposes to utilize the Village's GIS data as well as
FEMA information. The Village's survey vendor will provide the drainage survey to AECOM once
it is completed.
• The Village will provide the GIS files of the drainage atlas and any other files that will be useful in
developing the schematic design.
Deliverables
• Meeting Agendas and Minutes distributed electronically to all participants in attendance.
• Three (3) signed and sealed Drainage Assessment Reports.
• Two (2) Community Meeting Debrief Documents.
• Two (2) Council presentations, in Microsoft PowerPoint (PPT) format.
Schedule
All services shall be completed within 389 days of Notice to Proceed (NTP). This schedule is dependent
on the coordination with the Village on receiving the appropriate information for the project. A critical
vendor is the surveyor.
Task No.
Task Description
Estimated Completion
from NTP
Task 0001
Task 0002
Task 0003
Task0004
Task 0005
Task 0006
Task 0007
Task 0008
Project Management
Data Collection
Geotechnical
Existing Conditions Model
Alternative Analysis Runs
Final Report
Community Meetings
Council Presentations
389 days
20 days
60 days
205 days
375 days
389 days
389 days
389 days
Compensation
This is a lump sum proposal based on the hourly rate schedule approved under the Professional Services
Agreement between the Village of Key Biscayne and AECOM Technical Services, Inc. effective on May 19,
2020. The total estimated fee is $359,768.30. Exhibit B represents the hourly breakdown of the tasks.
AECOM proposes to invoice the Village on a monthly basis, based on percent complete.
AECOM — May 2022
Page 6 of 7
EXHIBIT B - COMPENSATION
Role
Hourly
Rate
Task 0001 -Project
Management
Task 0002 -Data Collection
N Task 0003-Geotechnical
cow Task 0005 -Alternative
°' °' Analysis Runs
- i
0 Task 0006 -Final Report
E
O C
•C
Y+�
r• -• N
O 2
O
O
-
0
co
1-
L.,
C
N
O
U
00 i..
Q N
.X 2
ro
I —
L
O
2
N
o
1-
Principal -in -Charge
$130
15
0
16
16
85
Project Manager
$200
45
15
2
36
32
32
261
Assistant Project
Manager
$175
0
15
0
63
191
68
16
8
361
Senior Engineer
$150
40
63
2
200
490
142
8
4
949
GIS Specialist
$110
0
11
0
47
20
0
0
0
78
Senior Hydrogeologist
$215
0
2
0
35
10
19
0
0
66
Planning/Resiliency Lead
$235
0
0
0
0
0
0
16
8
24
Public Outreach Lead
$175
0
0
0
0
0
0
80
48
128
Admin/Tech.
$80
32
0
0
0
0
12
0
0
44
Total Hours
132
106
6
358
833
277
168
116
2,134
Total Labor Fee
$19,510
$16,715
$960
$56,320
$133,155
$48,895
$3Q240
$20,760
$323,105
Total Subconsultant Fee
$0
$0
$13,013.30
$7,500
$7,500
$7,500
$0
$0
$35,513.30
Total Other Direct Costs
$0
$200
$0
$200
$250
$0
$250
$250
$1,150
Total Fee
$19,510
$16,915
$13,973.30
$64,020
$140,905
$52,945
$30,490
$21,010
$359,768.30
AECOM - May 2022
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