Item 4G - MemoCITY OF
SOUTHLAKE
Item 4G
MEMORANDUM
(May 17, 2022)
To: Shana Yelverton, City Manager
From: Rob Cohen, Director of Public Works
Subject: Approve an engineering services agreement with Halff
Associates, Inc. (Halff) to provide engineering services to
evaluate open space availability for citywide stormwater
management in an amount not to exceed $127,842.
Action
Requested: Approve an engineering services agreement with Halff Associates,
Inc. (Halff) to provide engineering services to evaluate open space
availability for citywide stormwater management in an amount not to
exceed $127,842.
Background
Information: Voters approved the issuance of bonds to acquire open space for
passive parks and stormwater management. A third party
engineering consultant familiar with leveraging passive parks as part
of a stormwater management strategy will help identify prospective
areas throughout the city through the creation of a stormwater model.
The model will identify areas possessing attributes essential to serve
as a regional stormwater detention facility while also identifying
roadways prone to overtopping during rain events. A total of five (5)
locations for detention and preservation will be further investigated.
Conceptual mitigation options will be identified and accompanied by
benefits/challenges, probable cost estimates and estimated returns
on investments. Additional work will need to be undertaken to refine
the concepts through development of a complete project package.
The stormwater modeling will be performed on the following drainage
basins:
Drainage Basins for Analysis
1
Dove Creek
2
Hi ins Branch
3
Jones Branch
4
Kirkwood Branch
5
South Fork Kirkwood Branch
6
Timarron Creek
Page 1 of 3
Item 4G
7
Tributary BB-5
8
Tributary BB-7
9
Tributary BB-8
10
Tributary BB-9
11
1 Unnamed Tributary 4
121
Unnamed Tributary to Kirkwood Branch
13
1 West Jones Branch
This project supports the City's Parks, Recreation and Open Space
Master Plan, Capital Improvements Program and Stormwater Master
Plan. This will improve the quality of life for its citizens while
preserving natural assets of the City.
Financial
Considerations: Funding for this agreement is budgeted as part of the approved
Capital Improvement Program. This agreement is within the project
budget.
Strategic Link: These items link to the City's Strategy Map strategic focus areas of
Safety & Security, Infrastructure, and Performance Management &
Service Delivery. It specifically relates to the City's Corporate
Objectives, C1: Achieve the Highest Standards of Safety & Security,
and F2: Invest to Provide & Maintain High Quality Public Assets. The
Critical Business Outcomes are, CBO3: Engage in thoughtful
planning to ensure continued high -quality development that is
integrated well into the current built environment, and CBO5:
Improve Quality of Life Through Progressive Implementation of
Southlake's Comprehensive Plan Recommendations.
Citizen Input/
Board Review: None.
Legal
Review: The proposed agreement is a standard agreement that the City
Attorney has reviewed and approved.
Alternatives: The City Council may approve or deny the agreement.
Supporting
Documents: Attachment A: Engineering Services Agreement
Staff
Recommendation: Approve an engineering services agreement with Halff Associates,
Inc. (Halff) to provide engineering services to evaluate open space
availability for citywide stormwater management in an amount not to
exceed $127,842.
Page 2 of 3
Item 4G
Staff
Contact: Rob Cohen, Director of Public Works
Kevin Ferrer, P.E., Deputy City Engineer
Kevin Taylor, P.E., Civil Engineer
Page 3 of 3
Attachment A
AGREEMENT FOR ENGINEERING SERVICES
THIS AGREEMENT is made this day of , 2022 by and
between the City of Southlake, Texas (hereinafter referred to as "CITY"), and Halff
Associates, Inc. (hereinafter referred to as "ENGINEER").
WHEREAS, CITY contemplates the need to provide engineering design services
for hydrological modeling and conduct open space planning with storm water
management capabilities. This project is to be known as the Open Space Planning and
hereinafter referred to as the "Project".
WHEREAS, ENGINEER is qualified, able, and desirous of performing the
necessary engineering work upon which the Project is based and is willing and able to
work with CITY staff to organize and coordinate the professional services necessary to
complete the Project.
NOW, THEREFORE, CITY engages ENGINEER to perform, and ENGINEER
agrees to perform, the engineering work for the Project, as more fully described herein
below, and CITY agrees to pay as compensation, and ENGINEER agrees to accept as
compensation, the payments on the dates and in the amounts herein specified, all in
accordance with the terms more fully set out below and as provided in Attachment A
which is attached hereto and incorporated by reference as if fully set forth herein.
I. ARTICLE
ENGINEERING SERVICES
A. Scope of Work
ENGINEER will provide the supervision, direction, personnel and equipment to
perform the engineering Services outlined in Attachment A in accordance with the terms
set forth in this Agreement and in Attachment A.
B. Definitions
Services refer to the professional services performed by ENGINEER pursuant to
this Agreement.
C. Changes
CITY, without invalidating the Agreement, may order changes within the general
scope of the work required by the Agreement by altering, adding to and/or deducting
from the work to be performed. If any change causes an increase or decrease in
ENGINEER's cost of, or the time required for, the performance of any part of the
Services under the Agreement, an equitable adjustment will be made by mutual
agreement and this Agreement shall be modified in writing accordingly.
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D. Coordination with Owner
The CITY shall make available to ENGINEER for use in performing Services
hereunder all existing plans, maps, field notes, statistics computations and other data in
the CITY's possession relative to existing facilities and to the Project.
E. Site and Local Conditions
ENGINEER has the right to examine the site in order to become acquainted with
local conditions and accepts conditions at the site unless otherwise noted in writing to
the CITY. Any coordination or scheduling of work by CITY shall not relieve ENGINEER
from its responsibilities specified hereunder. Necessary arrangement for access to any
site by ENGINEER's employees will be made with CITY.
F. Assignment and Subcontractors/Third Party Rights
The rights and obligations covered herein are personal to each party hereto and
not to any third party and for this reason neither this Agreement nor any contract
hereunder shall be assigned by either party in whole or in part; nor shall ENGINEER
subcontract any of its obligations under this Agreement without the prior written consent
of CITY.
G. Independent Contractor
ENGINEER covenants and agrees that it will perform the work hereunder as an
independent contractor, and not as an officer, agent, servant, or employee of CITY; that
ENGINEER shall have exclusive control of and exclusive right to control the details of
the work performed hereunder, and all persons performing same, and shall be solely
responsible for the acts and omissions of its officers, agents, employees, contractors,
subcontractors, and consultants; that the doctrine of respondent superior shall not apply
as between CITY and ENGINEER, its officers, agents, employees, contractors,
subcontractors, and consultants, and nothing herein shall be construed as creating a
partnership or joint enterprise between CITY and ENGINEER.
H. Disclosure
By signature of this contract, ENGINEER warrants to CITY that it has made full
disclosure in writing of any existing conflicts of interest or potential conflicts of interest,
including personal financial interests, direct or indirect, in property abutting the proposed
Project and business relations with abutting property owners. ENGINEER further
warrants that it will make disclosure in writing of any conflicts of interest that develop
subsequent to the signing of this contract and prior to final payment under the contract.
Finally, Engineer warrants that it has submitted to the City a completed Conflicts of
Interest Questionnaire as required by Chapter 176 of the Texas Local Government
Code.
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I. Approval by CITY
Approval by CITY of this Agreement shall not constitute or be deemed to be a
release of the responsibility and liability of ENGINEER, its officers, agents, employees,
and subcontractors for the accuracy and competency of the Services performed under
this Agreement, including but not limited to surveys, designs, working drawings and
specifications and other engineering documents.
Such approval shall not be deemed to be a waiver or an assumption of such
responsibility and liability by CITY for any negligent act, error, or omission in the
performance of ENGINEER's professional services or in the conduct or preparation of
the subsurface investigations, surveys, designs, working drawings and specifications or
other engineering documents by ENGINEER, its officers, agents, employees and
subcontractors, it being the intent of the parties that approval by CITY signifies the
CITY's approval of only the general design concept of the Improvements to be
constructed.
J. Indemnification
ENGINEER SHALL AND DOES HEREBY AGREE TO INDEMNIFY AND HOLD
HARMLESS CITY, ITS OFFICERS, AGENTS, AND EMPLOYEES FROM ANY AND
ALL DAMAGES, LOSS OR LIABILITY OF ANY KIND WHATSOEVER, BY REASON
OF DEATH OR INJURY TO PROPERTY OR PERSON CAUSED BY ANY OMISSION
OR NEGLIGENT ACT OF ENGINEER, ITS OFFICERS, AGENTS, EMPLOYEES,
INVITEES, OR OTHER PERSONS FOR WHOM IT IS LEGALLY LIABLE, WITH
REGARD TO THE PERFORMANCE OF THIS CONTRACT, AND ENGINEER WILL, AT
ITS COST AND EXPENSE, DEFEND, PAY ON BEHALF OF, AND PROTECT CITY
AND ITS OFFICERS, AGENTS, AND EMPLOYEES AGAINST ANY AND ALL SUCH
CLAIMS AND DEMANDS. THE PROVISIONS OF THIS SECTION ARE SUBJECT TO
THE LIMITATIONS OF TEXAS LOCAL GOVERNMENT CODE SECTION 271.904 AND
SHALL BE CONSTRUED TO THAT EFFECT.
K. No Third Party Beneficiary
For purposes of this Agreement, including its intended operation and effect, the
parties specifically agree and contract that: (1) this Agreement only affects
matters/disputes between the parties to this Agreement, and is in no way intended by
the parties to benefit or otherwise affect any third person or entity (except the
indemnitees identified or described in Article I, Section J., above), notwithstanding the
fact that such third person or entities may be in a contractual relationship with CITY and
ENGINEER, or both; and (2) the terms of this Agreement are not intended to release,
either by contract or operation of law, any third person or entity from obligations they
owe to either CITY or ENGINEER.
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L. Successors and Assigns
CITY and ENGINEER each bind themselves and their successors, executors,
administrators and assigns to the other party to this Agreement and to the successors,
executors, administrators and assigns of such other party with respect to all covenants
of this Agreement. Neither CITY nor ENGINEER shall assign or transfer its interest in
this Agreement without prior written consent of the other.
II. ARTICLE
CITY'S RESPONSIBILITIES
CITY will:
Provide full information as to CITY's requirements for the Project;
2. Assist ENGINEER by placing at ENGINEER's disposal all information in
CITY's control or knowledge which is pertinent to the Project, including
executed right-of-way easements and final field survey data;
3. Examine all work presented by ENGINEER and respond within
reasonable time and in writing to the material submitted by ENGINEER;
4. Pay all costs incident to advertising for obtaining bids or proposals from
Contractors;
5. Give prompt written notice to ENGINEER whenever CITY observes or
otherwise becomes aware of any defect in ENGINEER's work or in
Contractor's work;
6. Designate in writing a person to act as its representative with respect to
this Agreement, such person having complete authority to transmit
instructions, receive information, and make or interpret the CITY's
decisions;
7. Provide all information and criteria as to the CITY's requirements,
objectives, and expectations for the Project including all numerical criteria
that are to be met and all standards of development, design, or
construction.
8. Provide to the ENGINEER all previous studies, plans, or other documents
pertaining to the Project and all new data reasonably necessary in the
ENGINEER's opinion, such as site survey and engineering data,
environmental impact assessments or statements, zoning or other land
use regulations, etc., upon all of which the ENGINEER may rely; and
9. Arrange for access to the site and other private or public property as
required for the ENGINEER to provide its services.
Page 4
10. Provide any other information or assistance as outlined in Attachment A
hereto.
III. ARTICLE
COMPENSATION FOR ENGINEERING SERVICES
The CITY shall compensate ENGINEER for services rendered under this
Agreement, in accordance with the following:
For the completion of the work contemplated in Article I, the ENGINEER shall be
paid on a lump sum with a total not to exceed cost ceiling of $127,842 (as outlined in
the attached proposal) as billed monthly by ENGINEER.
IV. ARTICLE
TIMES OF BILLING AND PAYMENT
The ENGINEER shall bill CITY monthly for any services and expenses incurred
in accordance with the work performed subject to the limits set out in Article III.
Payment shall be due within thirty (30) days of receipt by CITY of a properly prepared
and correct invoice from ENGINEER. ENGINEER's invoices shall be accompanied by
such records or other written proof as CITY deems necessary to verify the billings.
Invoices shall be made to City Finance Department's office at 1400 Main Street,
Suite 440, Southlake, Texas 76092.
If CITY fails to make payment due ENGINEER within thirty (30) days of the day
when payment for services and expenses is due under the terms of this Agreement,
ENGINEER shall be entitled to interest on such unpaid sums at the rate provided in
Chapter 2251 of the Texas Government Code.
V. ARTICLE
ADDITIONAL ENGINEERING SERVICES
In addition to performing the engineering services set out in Article I, hereof,
ENGINEER agrees to perform additional services as requested by CITY from time to
time and CITY agrees to compensate ENGINEER for such services in accordance with
ENGINEER's standard hourly fee and expenses (see Attachment B) for actual time
expended and actual out-of-pocket sums expended, such services to be one or more of
the following:
Make or prepare detailed description of sites, maps, or drawings related
Page 5
thereto and outside the scope of the Project;
2. Appearances before courts or boards on matters of litigation or hearings
related to the Project;
3. Preparation of environmental impact assessments or statements for any
governmental agency;
4. Miscellaneous engineering work for CITY not related to the Project;
5. To provide resident project construction inspection, unless such inspection
is not required, in writing, by the CITY;
6. Other services agreed to by the parties in writing and incorporated herein.
VI. ARTICLE
STANDARD OF CARE
In performing its professional services, the ENGINEER will use that degree of
care and skill ordinarily exercised, under similar circumstances, by reputable members
of its profession in the same locality at the time the services are provided and in
accordance with any applicable governmental laws, regulations and ordinances.
VII. ARTICLE
PERIOD OF SERVICE
This Agreement shall be effective upon execution by CITY and ENGINEER, and
shall remain in force until work is completed on the Project or until terminated under the
provisions hereinafter provided in Article VIII.
VIII. ARTICLE
TERMINATION
The CITY may terminate this Agreement at any time for convenience, with or
without cause by giving written notice to the ENGINEER. Such termination may be
made effective on such future date as agreed by the parties, but absent such
agreement shall be immediate. Upon receipt of such notice the ENGINEER shall
immediately discontinue all services and work and the placing of all orders or the
entering into contracts for supplies, assistance, facilities, and materials in connection
with the performance of this Agreement and shall proceed to cancel promptly all existing
contracts insofar as they are chargeable to this Agreement.
The ENGINEER, upon termination, shall be paid for all services rendered
through the date of termination together with any additional reimbursable expense then
due.
Page 6
IX. ARTICLE
OWNERSHIP OF DOCUMENTS
All completed or partially completed reports prepared under this
Agreement, including the original drawings in both paper and electronic
formats, shall become the property of CITY if this Agreement is
terminated. Upon completion and payment of the contract, the final
design, drawings, specifications and documents in both paper and
electronic formats shall be owned by CITY.
2. Reuse, change or alteration by CITY or others acting by or on behalf of
CITY of such documents without the permission of ENGINEER shall be at
CITY's sole risk.
X. ARTICLE
INSURANCE
ENGINEER shall carry and maintain at all times relevant hereto, at ENGINEER's
expense, insurance of the type and of minimum coverage limits as follows:
Workers Compensation - Statutory Employer's Liability - Limits as required
by the State of Texas.
2. Comprehensive General Liability, Bodily Injury and Property Damage
including contractual liability in a combined single limit - $500,000 per
occurrence.
3. Comprehensive Automotive Liability, Bodily Injury and Property Damage
in a combined single limit - $1,000,000 per accident.
Certificates of insurance for the above coverage in a form acceptable to CITY,
evidencing the coverage required above, shall be provided to CITY within ten (10)
business days after execution of this Agreement and prior to issuing Notice to Proceed.
Such certificates shall provide that the insurer will give CITY not less than ten (10) days
notice of any material changes in or cancellation of coverage. In the event any
subcontractor of ENGINEER, with or without CITY's consent, provides or renders
services under this Agreement, ENGINEER shall ensure that the subcontractor's
services are covered by the same insurance limits as set forth above.
ENGINEER shall not commence work under this Agreement until it has obtained
Professional Liability (Errors and Omissions) Insurance as required hereunder and such
insurance coverage has been approved by CITY. Such insurance shall be in the
minimum amount of $1,000,000 and shall include coverage of Contractually Assumed
Liability. The insurance coverage prescribed herein shall be maintained until one (1)
Page 7
year after CITY's acceptance of the construction project and shall not be canceled
without prior written notice to CITY. In this connection, upon the signing and return of
this Agreement by ENGINEER, a Certificate of Insurance shall be furnished to CITY as
evidence that the insurance coverage required herein has been obtained by
ENGINEER, and such certificate shall contain the provision that such insurance shall
not be cancelled or modified without thirty (30) days prior written notice to CITY.
ENGINEER shall notify CITY within ten (10) days of any modification or alteration in
such Professional Liability (Errors and Omissions) Insurance.
XI. ARTICLE
AUTHORIZATION, PROGRESS AND COMPLETION
CITY and ENGINEER agree that the Project is planned to be completed by
September 30, 2022. ENGINEER shall employ manpower and other resources, and
use professional skill and diligence to meet the schedule; however, ENGINEER shall
not be responsible for schedule delays resulting from conditions beyond its control. By
mutual agreement, CITY and ENGINEER may modify the Project schedule during the
course of the Project and if such modifications affect ENGINEER's compensation, it
shall be modified accordingly, subject to CITY's approval.
It is understood that this Agreement contemplates full and complete engineering
services for this Project, including any and all Services necessary to complete the work.
For additional Engineering Services, the authorization by CITY shall be in writing and
shall include the definition of the services to be provided, the schedule for commencing
and completing the services, and the basis for compensation as agreed upon by CITY
and ENGINEER.
XII. ARTICLE
NOTICE
Any notice required under this Agreement will be in writing and given either
personally, by registered or certified mail, return receipt requested, or by a nationally
recognized overnight courier service, addressed to the parties as follows:
If to CITY: Shana Yelverton
City Manager
City of Southlake
1400 Main Street, Suite 460
Southlake, Texas 76092
Phone: 817-748-8400
Fax: 817-748-8010
Page 8
If to ENGINEER: Scott Rushing, P.E., CFM
Water Resources Team Leader
Halff Associates, Inc.
400 Fossil Creek Boulevard
Fort Worth, Texas 76137
Phone: (817) 764-7487
All notice shall be effective upon the date of receipt.
XIII. ARTICLE
SEVERABILITY
In the event that any provision of this Agreement shall be found to be void or
unenforceable, such finding shall not be construed to render any other provisions of this
Agreement either void or unenforceable. All provisions, which are void or
unenforceable, shall not substantially affect the rights or obligations granted to or
undertaken by either party.
XIV. ARTICLE
VENUE -LAW
Venue of any suit or cause of action under this Agreement shall lie exclusively in
Tarrant County, Texas. This Agreement shall be construed in accordance with the laws
of the State of Texas.
IN WITNESS WHEREOF the parties have caused this Agreement to be executed
in two equal originals on the date and year first above mentioned.
CITY OF SOUTHLAKE:
By:
John Huffman, Mayor
ATTEST:
By:
City Secretary
Page 9
ENGINEER: HALFF ASSOCIATES, INC.
By:
Scott Rushing, P.E.
Water Resources Yeam Leader
THE STATE OF TEXAS §
COUNTY OF TARRANT §
Before me on this day personally appeared known to me for
proved to me on the oath of or through C
(description of identity card or other document)] to be the person whose name is
subscribed to the foregoing instrument and that he/she is the duly authorized
OL(I en Jr of MJW AMIDC 046S and acknowledged
to A that he/she executed the same for the purposes and consideration therein
expressed.
GJ''��en under my hand and seal of office this lY day of ,
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(SEAL) Notary Public, State of Texas
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Notary's Name Printed
as VALEME RASE GAM E50N
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1D # 13317884-4
R My Comm. Expires 06-16.2Q23
Page 10
Attachment A
The City of Southlake has requested Halff Associates, Inc. (Halff) to provide professional engineering
services for Citywide 2D Rain -on -Mesh (ROM) hydrologic/hydraulic modeling and open space
planning. This proposal includes the Study Objectives, Scope of Work, Exclusions, Project Fees and
Schedule.
Study Objectives
1. Assist City CIP Planning: Update existing Citywide 2D model to focus on riverine flood risk
in support of watershed wide open space planning. Local floodplains will also be developed
but the objective and focus are on riverine modeling to assess conceptual regional
detention and open space planning. The local floodplain ROM analysis will be updated with
the latest available terrain data capturing the last 10 years of development within the City.
Scope of Work
Below is the detailed scope of work per task.
Task 1— 2D Rain -on -Mesh Analysis
A. Terrain Preparation
1. Utilize 2019 TNRIS LiDAR data to develop a Digital Elevation Model (DEM) for the City.
Process and mosaic DEM tiles as needed and create contour shapefiles.
B. 2D Modeling
Halff will update the 2020 Rain -on -Mesh hydraulic model using the latest version of
HEC-RAS, which will include updating the terrain from 2009 data to 2019 TNRIS LiDAR
and incorporating significant bridge/culvert crossings along all FEMA stream centerlines.
Rainfall data, land use, manning's n-value layer, and boundary conditions will be based
on the 2020 model.
2. Halff will incorporate up to fifty (50) bridge/culvert crossings that impact routing of
flood waters during flood events. Halff will leverage several data sources listed below to
input structure crossings within the hydraulic model. This scope assumes the level of
detail from these sources will be sufficient for planning purposes. Field surveys to
confirm as -built conditions are not included with this scope of work. Halff will perform
field reconnaissance and collect field measurements for any structures not based on the
sources below.
• Previous Critical Drainage Structure Studies (various years)
• 2016 NCTCOG CTP Study
• 2020 Kirkwood Branch Watershed Study
• TxDOT as -built plans
• City as -built plans
Open Space Planning Page 1 of 4
Attachment A
Develop GIS floodplain mapping/depth grids based on the 2D ROM model results for the
2-, 10-, and 100-year storm events based on fully developed conditions. Flood depth
boundaries will be limited to depths greater than 0.5'.
Task 2 — Open Space/Regional Detention Assessment
A. Conceptual Alternative Analysis
Based on the results of the Citywide 2D ROM analysis, identify flooding hot spots along
riverine areas including overtopped roads and flooded structures. The level of service
for each roadway included in the ROM analysis will be determined based which storm
event is passed by the structure without being overtopped.
2. Develop conceptual regional detention alternatives for up to five (5) locations to reduce
flooding problems identified under Task 2.A.1. The conceptual regional detention
options will be modeling using the 2D ROM model developed under Task 1. Halff will
consider how the regional detention options are aligned with open space planning
throughout the City.
3. Identify corridors for open space preservation based on the 100-year floodplain
mapping results of the ROM analysis.
4. Summarize the benefits and challenges for each conceptual alternative including metrics
on flood reduction.
5. Develop estimates of probable cost for each conceptual alternative.
Task 3 — Project Management / Deliverables
This scope includes the coordination and communication procedures to be implemented
between the City of Southlake and Halff Associates in completion of this project.
B. Project Coordination and Management
1. Conduct one (1) project kickoff meeting (Teams) with the City of Southlake.
2. Conduct bi-weekly coordination calls with the City of Southlake (up to 8 meetings).
3. Prepare monthly progress reports for City of Southlake identifying work accomplished,
work to be done, and outstanding issues that need attention.
C. Deliverables/Reporting
Prepare a brief memorandum summarizing the procedures and results of the study
including tables and figures. Halff will provide recommendations for regional detention
and open space planning. The final memo will be subject to one review by the City. One
(1) meeting (Teams) will be scheduled to discuss City comments.
Deliver a digital copy of the final memo to the City of Southlake with technical data
utilized in preparation of the study in digital format, including hydrologic and hydraulic
models and a GIS geodatabase with floodplain mapping/depth grids.
Open Space Planning Page 2 of 4
Attachment A
Exclusions
The following services are not included in the scope of work of this proposal. Halff Associates can
provide estimated fees for these services, if needed.
A. Field survey of existing bridge/culvert crossings or storm drain infrastructure.
Open Space Planning Page 3 of 4
Attachment A
Fees:
The project will be a Lump Sum fee. Lump sum fee tasks will be billed monthly based on percentage
of work that has been completed. A summary of the professional services fees by task is listed in
the following table.
FEE SUMMARY
Task Description
Total
1. 2D Rain -on -Mesh Analysis & Mapping $53,165
2. Conceptual Alternatives Analysis $50,885
3. Protect Management/Deliverables $23,792
TOTAL $127,842
Direct Costs for expenses such as mileage, copies, scans, etc. are included in the lump sum fees.
Crhnrinln•
Halff will complete the scope of work by September 30, 2022 based on the timeline provided
below.
• Halff to submit draft memo for City review — August 26tn
• City to complete review and provide comments within 2 weeks of draft submittal — Sept 9tn
• Halff will address City comments and submit final deliverables — Sept 30tn
We appreciate the opportunity to be of service to the City of Southlake. If you have any questions,
please do not hesitate to call me at (817) 764-7487.
Sincerely,
HALFF ASSOCIATES, INC.
t E'47
Scott Rushing, PE, CFM
Water Resources Team Leader
C: Levi Hein, PE, CFM
Open Space Planning Page 4 of 4
Attachment B - Fee Schedule
TASK/DESCRIPTION
PRIN
PROD
MGR
PROF
ENGR
FIT
SR
PLANNER
CIS
TECH
ADMIN
CLER
TOTAL
MAN-
HOURS
LABOR
CHARGES
(DIRECT)
Task 1: 2D Rain -On -Mesh Analysis
A
Terrain Preparation
Develop DEM
1
2
4
1
24
1
30
$ 3,240.00
B
2D Modeling & Floodplain Mapping
Build 2D Mesh
6
32
38
$ 5,120.00
Data Collection & Review
6
24
30
$ 4,080.00
I nput Structures
2
16
100
118
$ 16,040.00
Execute/Troublashoot HEC-RAS model
6
16
80
102
$ 14,400.00
Develop GIS flood plain mapping/depth grids
4
20
10
34
$ 4,240.00
QAQC Plan
1
12
8
12
33
$ 6,045.00
SUBTOTAL HOURS/COSTS
1
20
58
272
34
385
$ 53,165.00
Task 2: Conceptual Flood Mitigation Alternative Analysis
A
Conceptual Alternative Analysis
Hotspot Identification
2
12
32
46
$ 6,560.00
Develop& Simulate Regional Detention
8
24
100
132
$ 18,760.00
Evaluate Open Space Concepts
4
8
16
24
52
$ 9,240.00
Summarize Benefits/Challenges
4
10
16
30
$ 4,640.00
Develop Cost Estimates
2
16
24
42
$ 6,160.00
QAQC Plan
1
12
8
8
29
$ 5,525.00
SUBTOTAL HOURS/COSTS
1
32
78
196
24
331
$ 50,885.00
Task 3: Project Management / Deliverables
A
Project Coordination & Management
Kick-off Meeting
2
2
2
6
$ 1,060.00
Status/Coordination Meetings, x6
8
8
16
32
$ 5,280.00
Monthly progress reports
4
4
8
$ 1,232.00
B
Deliverables/Reporting
Draft Memo
4
16
60
80
$ 11,320.00
Meeting to discuss City comments
2
2
2
6
$ 1,060.00
Final Memo
2
8
16
26
$ 3,840.00
SUBTOTAL HOURS/COSTS
22
36
96
4
158
$ 23,792.00
SUMMARY
Task 1: 2D Rain -On -Mash Analysis
1
20
58
272
34
385
$ 53,165.00
Task 2: Conceptual Flood Mitigation Alternative Analysis
1
32
78
196
24
$ 50,885.00
Task 3: Project Management / Deliverables
22
36
96
4
158
$ 23,792.00
TOTAL HOURS
2
74
172
564
34
4
543
$ 127,842.00
HOURLY RATES
$ 325.00
$ 240.00
$ 160.00
$ 130.00
$ 205.00
S 100.00
$ 68.00
TOTAL FEE
I
I
I
I
I
1
1 $ 127,842.00