HomeMy WebLinkAboutContract 43343 (2)STATE OF TEXAS §
COUNTY OF TARRANT §
SEcRETARr
C�Y
NO.
KNOWN ALL BY THESE PRESENTS:
33L
THIS AGREEMENT, entered into the day of Z"byand
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between the City of Fort Worth, a Texas home -rule municipality, acting herein by and through
its duly authorized Assistant City Manager, hereinafter called the "City", and Brown & Gav
Engineers, Inc. an independent contractor "Consultant" authorized to do business in
Texas. City and Consultant may be referred to herein individually as a Party, or collectively as
the Parties.
WITNES SETH
That for and in consideration of mutual covenants and agreements herein contained, the Parties
hereto mutually agree as follows:
ARTICLE 1
SERVICES
Section 1.
Consultant hereby agrees to perform as an independent contractor the services set forth in the
Scope of Services attached hereto as Attachment "A". These services shall be performed in
connection with Greenbriar Creek Open Channel Study (SWS-021)
Section 2.
Additional services, if any, will be requested in writing by the City. City shall not pay for any
work performed by Consultant or its subconsultants, subcontractors and/or suppliers that has not
been ordered in writing. It is specifically agreed that Consultant shall not be compensated for
any alleged additional work resulting from oral orders of any person.
ARTICLE 2
COMPENSATION
Consultant shall be compensated in accordance with the Fee Schedule shown in Attachment "B".
Payment shall be considered full compensation for all labor, materials, supplies, and equipment
necessary to complete the services described in Attachment "A". However the total fee paid by
the City shall $448,904 unless the City and the Consultant mutually agree upon a fee amount
for additional services and amend this Agreement accordingly.
The Consultant shall provide monthly invoices to the City. Payment for services rendered shall
be due within thirty (30) days of the uncontested performance of the particular services so
ordered and receipt by City of Consultant's invoice for payment of same.
OFFICIAL RECORD
CITY SECRETARY
-22-12 Al 1 :58 IN
FtWORTh,TX
Acceptance by Consultant of said payment shall operate as and shall release the City from all
claims or liabilities under this Agreement for anything related to, done, or furnished in
connection with the services for which payment is made, including any act or omission of the
City in connection with such services.
ARTICLE 3
TERM
Unless terminated pursuant to the terms herein, this Agreement shall be for a term of 2 vears,
beginning upon the date of its execution, or until the completion of the subject matter
contemplated herein, whichever occurs first.
ARTICLE 4
INDEPENDENT CONTRACTOR
Consultant shall operate hereunder as an independent contractor, and not as an officer, agent,
servant or employee of the City Consultant shall have exclusive control of and the exclusive
right to control the details of its work to be performed hereunder and all persons performing
same, and shall be solely responsible for the acts and omissions of its officers, agents,
employees, contractors and subcontractors. The doctrine of respondent superior shall not apply
as between City and Consultant, its officers, agents, employees, contractors, and subcontractors,
and nothing herein shall be construed as creating a partnership or joint venture between City and
Consultant.
ARTICLE 5
PROFESSIONAL COMPETENCE AND INDEMNIFICATION
Section 1.
Work performed by Consultant shall comply in all aspects with all applicable local, state and
federal laws and with all applicable rules and regulations promulgated by the local, state and
national boards, bureaus and agencies. Approval by the City shall not constitute or be deemed to
be a release of the responsibility and liability of Consultant or its officers, agents, employees,
contractors and subcontractors for the accuracy and competency of its services performed
hereunder.
Section 2.
In accordance with Texas Local Government Code Section 271.904, the Consultant shall
indemnify, hold harmless, and defend the City against liability for any damage caused by or
resulting from an act of negligence, intentional tort, intellectual property infringement, or failure
to pay a subcontractor or supplier committed by the Consultant or Consultant's agent, consultant
under contract, or another entity over which the Consultant's exercises control.
Professional Services
Consultant Agreement
Rev 10.11.2011
Page 2 of 8
ARTICLE 6
INSURANCE
Section 1.
Consultant shall not commence work under this Agreement until it has obtained all insurance
required under this Article and the City has approved such insurance, nor shall Consultant allow
any subcontractor to commence work on its subcontract until all similar insurance of the
subcontractor has been so obtained and approval given by the City; provided, however,
Consultant may elect to add any subconsultant as an additional insured under its liability
policies.
Professional Liability
$1,000,000 per claim and aggregate.
Professional Liability insurance may be written on an occurrence or claims -
made basis If coverage is written on a claims -made basis, the retroactive
date shall be coincident with or prior to the date of the contractual
agreement. The certificate of insurance shall state that the coverage is
claims -made and include the retroactive date. The insurance shall be
maintained for the duration of the contractual agreement, and for five (5)
years following completion of the service provided under the contractual
agreement, or for the warranty period, whichever is longer. An annual
certificate of insurance submitted to the City shall evidence coverage.
Commercial General Liability
$1,000,000 each occurrence
$1,000,000 aggregate
Automobile Liability
$1 000,000 each accident (or reasonably equivalent limits of
coverage if written on a split limits basis). Coverage shall be on
any vehicle used in the course of the Project.
Worker's Compensation
Coverage A: statutory limits
Coverage B: $100,000 each accident
$500,000 disease - policy limit
$100,000 disease - each employee
Section 2.
Additional Insurance Requirements
a. Except for employer's liability insurance coverage under Consultant's worker's
compensation insurance policy, the City, its officers, employees and servants shall be
endorsed as an additional insured on Consultant's insurance policies
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Consultant Agreement
Rev 10.11.2011
Page 3 of 8
b. Certificates of insurance shall be delivered to the TPW Stormwater Management,
Attention: _Mr Steven E Eubanks, PE, CFM 1000 Throckmorton Street, Fort Worth,
TX 76102, prior to commencement of work
c. Any failure on part of the City to request required insurance documentation shall not
constitute a waiver of the insurance requirements specified herein.
d. Each insurance policy shall be endorsed to provide the City a minimum thirty days
notice of cancellation, non -renewal, and/or material change in policy terms or coverage.
A ten days notice shall be acceptable in the event of non-payment of premium.
e. Insurers must be authorized to do business in the State of Texas and have a current
A.M. Best rating of A: VII or equivalent measure of financial strength and solvency.
f. Other than worker's compensation insurance, in lieu of traditional insurance, City
may consider alternative coverage or risk treatment measures through insurance pools
or risk retention groups. The City must approve in writing any alternative coverage.
g.
Workers' compensation insurance policy(s) covering employees employed on the
Project shall be endorsed with a waiver of subrogation providing rights of recovery in
favor of the City.
h. City shall not be responsible for the direct payment of insurance premium costs for
Consultant's insurance.
i. Consultant's insurance policies shall each be endorsed to provide that such insurance
is primary protection and any self -funded or commercial coverage maintained by City
shall not be called upon to contribute to loss recovery.
J.
In the course of the Agreement, Consultant shall report, in a timely manner, to City s
officially designated contract administrator any known loss occurrence which could
give rise to a liability claim or lawsuit or which could result in a property loss.
k. Consultant's liability shall not be limited to the specified amounts of insurance
required herein.
1. Upon the request of City, Consultant shall provide complete copies of all insurance
policies required by these Agreement documents.
ARTICLE 7
TRANSFER OR ASSIGNMENT
City and Consultant each bind themselves, and their lawful successors and assigns, to this
Agreement. Consultant, its lawful successors and assigns, shall not assign, sublet or transfer any
interest in this Agreement without prior written consent of the City.
Professional Services
Consultant Agreement
Rev 10.11.2011
Page 4 of 8
ARTICLE 8
TERMINATION OF CONTRACT
Section 1.
City may terminate this Agreement for its convenience on 30 days' written notice Either the
City or the Consultant for cause may terminate this Agreement if either Party fails substantially
to perform through no fault of the other and does not commence correction of such
nonperformance with 5 days of written notice and diligently complete the correction thereafter
Section 2.
If City chooses to terminate this Agreement under Article 8, upon receipt of notice of
termination, Consultant shall discontinue services rendered up to the date of such termination
and City shall compensate Consultant based upon calculations in Article 2 of this Agreement and
Exhibit "B" attached hereto and incorporated herein.
Section 3.
All reports, whether partial or complete, prepared under this Agreement, including any original
drawings or documents, whether furnished by the City, its officers, agents, employees,
consultants, or contractors, or prepared by Consultant, shall be or become the property of the
City, and shall be furnished to the City prior to 01 at the time such services are completed, or
upon termination or expiration of this Agreement.
ARTICLE 9
RIGHT TO AUDIT
(a) Consultant agrees that the City shall, until the expiration of three (3) years after final
payment under this Agreement, have access to and the right to examine any directly pertinent
books, documents, papers and records of Consultant involving transactions relating to this
Agreement. Consultant agrees that the City shall have access during normal working hours
to all necessary facilities and shall be provided adequate and appropriate workspace in order
to conduct audits in compliance with the provisions of this section. City shall give
Consultant reasonable advance notice of intended audits.
(b) Consultant further agrees to include in all its subcontracts hereunder, a provision to the effect
that the subcontracting consultant agrees that the City shall, until the expiration of three (3)
years after final payment under the subcontract, have access to and the right to examine any
directly pertinent books documents, papers and records of such subconsultant, involving
transactions to the subcontract, and further, that City shall have access during normal
working hours to all subconsultant facilities, and shall be provided adequate and appropriate
work space in order to conduct audits in compliance with the provisions of this article. City
shall give Consultant and any subconsultant reasonable advance notice of intended audit.
(c) Consultant and subconsultants agree to photocopy such documents as may be requested by the
City. The City agrees to reimburse Consultant for the cost of copies at the rate published in the
Texas Administrative Code in effect as of the time copying is performed
Professional Services
Consultant Agreement
Rev 10.11.2011
Page 5 of 8
ARTICLE 10
MINORITY AND WOMAN BUSINESS ENTERPRISE
(M/WBE) PARTICIPATION
In accordance with City Ordinance No. 15530, the City has goals for the participation of
minority business enterprises and woman business enterprises ("M/WBE") in City contracts.
Consultant acknowledges the M/WBE goal established for this Agreement and its commitment
to meet that goal. Any misrepresentation of facts (other than a negligent misrepresentation)
and/or the commission of fraud by the Consultant may result in the termination of this
Agreement and debarment from participating in City contracts for a period of time of not less
than three (3) years.
ARTICLE 11
OBSERVE AND COMPLY
Consultant shall at all times observe and comply with all federal, state, and local laws and
regulations and with all City ordinances and regulations which in any way affect this Agreement
and the work hereunder, and shall observe and comply with all orders, laws ordinances and
regulations which may exist or may be enacted later by governing bodies having jurisdiction or
authority for such enactment. No plea of misunderstanding or ignorance thereof shall be considered.
Consultant agrees to defend, indemnify and hold harmless City and all of its officers, agents and
employees from and against all claims or liability arising out of the violation of any such order, law
ordinance, or regulation, whether it be by itself or its employees.
ARTICLE 12
VENUE AND JURISDICTION
If any action, whether real or asserted, at law or in equity, arises on the basis of any provision of
this Agreement, venue for such action shall lie in state courts located in Tarrant County, Texas or
the United States District Court for the Northern District of Texas — Fort Worth Division. This
Agreement shall be construed in accordance with the laws of the State of Texas
ARTICLE 13
CONTRACT CONSTRUCTION
The Parties acknowledge that each party and, if it so chooses, its counsel have reviewed and
revised this Agreement and that the normal rule of construction to the effect that any ambiguities
are to be resolved against the drafting party must not be employed in the interpretation of this
Agreement or any amendments or exhibits hereto.
ARTICLE 14
SEVERABILITY
The provisions of this Agreement are severable, and if any word, phrase, clause, sentence,
paragraph, section or other part of this Agreement or the application thereof to any person or
circumstance shall ever be held by any court of competent jurisdiction to be invalid or
unconstitutional for any reason, the remainder of this Agreement and the application of such
word, phrase, clause, sentence, paragraph, section or other part of this Agreement to other
Professional Services
Consultant Agreement
Rev 10.11.2011
Page 6 of 8
persons or circumstances shall not be affected thereby and this Agreement shall be construed as
if such invalid or unconstitutional portion had never been contained therein.
ARTICLE 15
NOTICES
Notices to be provided hereunder shall be sufficient if forwarded to the other Party by hand -
delivery or via U.S. Postal Service certified mail return receipt requested postage prepaid, to the
address of the other Party shown below:
City of Fort Worth
Attn: Steven Eubanks, PE, CFM
Stormwater Management Group, T/PW Department
1000 Throckmorton Street
Fort Worth, Texas 76102
Consultant:
Brown & Gay Engineers, Inc.
Brenda Gasperich, PE, CFM
2595 Dallas Parkway, Ste. 204
Frisco, TX 75034
ARTICLE 16
HEADINGS
The headings contained herein are for the convenience in reference and are not intended to
define or limit the scope of any provision of this Agreement
ARTICLE 17
COUNTERPARTS
This Agreement may be executed in one or more counterparts and each counteipart shall, for all
purposes, be deemed an original, but all such counterparts shall together constitute but one and
the same instrument
Professional Services
Consultant Agreement
Rev 10.11.2011
(Remainder of Page Intentionally Left Blank)
Page 7 of 8
IN WITNESS THEREOF, the parties hereto have made and executed this Agreement in
multiple originals the day and year first above written, in Fort Worth, Tarrant County, Texas.
CITY OF FORT WORTH:
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Fernando Costa
Assistant City Manager
RECOMMENDED:
G
Douglas Wiersig, P.E., Direct
Departm • t of Transportation an
Brown & Gay Engineers, Inc.:
Wm. D. (Doug) Dillon, PE
Sr. Vice President
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Tublic Works
APPROVED AS TO FORM AND
LEGALITY:
Douglas W. Black
Assistant City Attorney
M&C No. `- - 1513
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M&C Date: 6-
ATTEST:
Aaiy J. Kayse#
City Secretary
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Date
Professional Services
Consultant Agreement
Rev 10.11.2011
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OFFICIAL RECORD
CITY SECRETARY
Ft WORTH, TX
ATTACHMENT "A"
OPEN CHANNEL STUDY
SCOPE OF WORK
Preface
Over the years, the City of Fort Worth has experienced growth and development
throughout. As a result, some of the current floodplain delineations and studies may be
outdated Some streams within the City were never studied in detail The purpose of
these open channel studies is to assess the existing conditions of select open channels
and to develop a master plan of improvements as needed The existing conditions
analysis includes detailed hydrologic and hydraulic analyses to determine probable
flooding areas during exceedance storms and a comparison of results to existing
studies (if available) The revision or development of a master plan of improvements for
the study area will include a set of conceptual improvement alternatives to minimize
flood impacts to homes and buildings. These studies may require the submittal of a
LOMR to FEMA if the resultant flood analysis is significantly different from the current
flood insurance study delineation and base flood elevations. Because of the number of
studies that will be conducted, the City would like to develop a standardized approach
for consistent data management and model development. The City has embarked on
the development of a GIS inventory of the existing storm water management system
These studies will have data that will be relevant to the City's ongoing GIS inventory
Therefore, the submittal of GIS data to the City is required. For data management
purposes, all of the reports and detailed analyses will be submitted to the City in an
approved format. A standardized approach to documentation submittals and approach
will assist the City with data management of these and future studies.
ATTACHMENT A
Page 1 of 19
OPEN CHANNEL STUDY
Study Summary.
a. Purpose of Study
The purpose of the study is to conduct a detailed hydrologic and hydraulic analysis of
the Greenbriar Creek watershed and to develop a master plan for the watershed to
protect homes and businesses from the 1% (100-year) flood event. The total length of
Greenbriar Creek to be studied, from downstream confluence with Sycamore Creek to
the upstream beginning of channel is approximately 11 500 linear feet. In addition to
the open channel section, there will be an analysis performed on the closed conduit
storm drain system in the upstream portion of the watershed. This storm drain system
serves as the headwaters of the stream and is directly impacted by flow conditions of
the open channel. The proposed study shall include:
1. Detailed Hydrology of the entire watershed. (NRCS Method)
2. Detailed Hydraulics of the main stem and one tributary of the creek from its
confluence with Sycamore Creek up to and through the seminary property as
well as a detailed hydraulic study of the storm drain system upstream of the
channel.
3. A master plan for improvements necessary to protect homes and prevent
roadway flooding during the 100-year storm. The master plan will consider
channel improvements, detention buy-outs and other feasible alternatives as
appropriate measures for mitigation.
4. Scoping for any recommended minor projects proposed by the master plan.
5. Submission of a LOMR to FEMA reflecting map modifications based on the
results of this study, if necessary.
[Include purpose of study]
The ENGINEER's services and products resulting from this study shall be referred to as
"Greenbriar Creek Open Channel Study". The ENGINEER shall perform the study
services in accord with (1) the Federal Emergency Management Agency floodplain
modeling and mapping specifications and guidelines, (2) the City of Fort Worth Storm
Water Management Design Manual, and (3) specific requirements and technical
guidelines in this scope document The City of Fort Worth Storm Water Management
Design Manual shall be the prevailing document.
b. Pertinent Data
Greenbnar Creek watershed encompasses approximately 965 acres (1.5 square miles)
of residential, industrial, commercial, and educational facilities. The creek originates
near the Southwestern Baptist Theological Seminary campus and flows in a
southeasterly direction under I-20/Loop 820 to its confluence with Sycamore Creek
near the intersection of I-35W and I-20. The current effective FIS for this stream (SC-6)
appears to be dated January 6, 1993 with an update to the FIRM Panel 48439C0315K
dated September 25, 2009.
ATTACHMENT "A"
Page 2 of 19
[Include brief watershed description and reference current effective study FIS or
drainage study]
Task 1: Proiect Management
The ENGINEER's project management activities shall include task leadership and
direction, telephone and written communication, bi-monthly study update meetings,
study status reports, study schedule and updates, and personnel and data management
among other general study management activities. Any delays to the study schedule
shall be in writing to the City of Fort Worth for review and approval The ENGINEER
shall attend the study kickoff meeting with a proposed schedule for task sequence and
completion. The ENGINEER's Project Manager shall schedule and lead all study
meetings. Meeting notes shall be submitted to the City of Fort Worth's Project Manager
within five working days after each meeting. The ENGINEER shall attend [minimum of
one, ENGINEER modify number according to study] public meeting to present what
possible mitigation alternatives are being explored. The ENGINEER will provide to the
City study information regarding proposed mitigation alternatives (if applicable) for
public outreach.
The ENGINEER will fully document all relevant hardware, software, file structures, and
data formats used during the study. The details and structure to be followed are
included in EXHIBIT A-1 The draft and final report format to be followed is included in
EXHIBIT A-2. Other than intermittent meetings, all of the individual Task deliverables
shall be submitted with the draft and final report at the conclusion of the study The
ENGINEER shall update a Study Certification and Decision Log to be submitted at the
completion of the study.
[ENGINEER Add to study task unique activities particular to study that are beyond the
standard scope.)
Task 1 Deliverables:
® Documentation
o Summary of Tasks
o Study Schedule
o Support Data — Relevant meeting notes and email correspondence, study
status updates, and action items for ENGINEER, sub -consultants, and the
City of Fort Worth.
o Completed Study Certification and Decision Log upon completion of the
study.
Task 2: Data Search, Collection. Field Reconnaissance. Stream Condition
Assessment, and Surveys
ATTACHMENT "A"
Page 3 of 19
a Dataset Search and Collection
The City of Fort Worth will provide the ENGINEER with the following watershed data in
GIS format, in addition to the available models and reports: stream centerlines, street
centerlines, 2007 aerial imagery, 2007 terrain surface in LAS format, existing and future
land use data, 2007 subbasin delineations (may not be delineated for each site), high-
water marks (if available), and zoning maps Historical rainfall data and the as -built
drawings of the hydraulic structures may be available from the City. The ENGINEER
shall submit a written request to FEMA for all relevant available data from the effective
Flood Insurance Study (FIS) including but not limited to LOMRs, hydrologic and
hydraulic data, reports, working maps, etc. The City shall determine the extent of the
study along the stream.
The ENGINEER shall use the City -provided watershed description, stream centerline,
and 2007 terrain surface as part of the base data for modeling and mapping. If
necessary, the ENGINEER may modify the stream centerline alignment during Tasks 3
and 4 according to topography, 2007 aerial imagery, or new survey data. Any errors
identified or revisions made to the City's stream centerline and watershed boundary
datasets shall be reported and discussed with the City's Project Manager.
The ENGINEER will review and identify known flooding and drainage issues referred to
as "hot spots" within the study area The City will provide available drainage complaint
reports to the ENGINEER The identified "hot spots" shall be compiled into a GIS
geodatabase.
The City of Fort Worth's Storm Water Management Division shall assist the ENGINEER
in locating required data available from the City, but the ultimate responsibility for
identifying data needs and for finding, collecting, developing, analyzing, and creating all
necessary data shall reside with the ENGINEER If required data is unavailable, the
ENGINEER shall inform the City in writing and discuss with the City's Project Manager
for actions or determination.
b Field Reconnaissance
The ENGINEER shall perform field reconnaissance to become familiar with the main
stem and the appropriate tributaries, the hydraulic and hydrologic structures, land use,
vegetative cover conditions of the floodplain and special features and problems within
the watershed. The ENGINEER is aware that not all natural channels are contained
within City easements therefore property owner permission must be obtained by the
ENGINEER to access private property. The ENGINEER shall document their
reconnaissance efforts findings with labeled digital photographs. Typical channel and
over -bank types shall be photographed and labeled with location and Manning "n" value
assumptions.
The ENGINEER shall document physical characteristics of the watershed relevant to
modeling, including but not limited to: specific features of all major detention ponds and
outlet discharge structures vegetative and built structure conditions along the
floodplains, types and number of hydraulic structures involved, apparent maintenance
ATTACHMENT "A"
Page 4 of 19
condition of channels, over -banks and existing hydraulic structures, locations and
descriptions of stream cross -sections to be surveyed (including bridge railings and
obstructed flow areas).
c. Stream Condition Assessment
The ENGINEER shall perform a stream condition assessment as a result of field
reconnaissance efforts and document the locations of observed erosive conditions,
channel stability issues, channel side -slope failure, failed channel protection, sediment
transport, and/or other observed failures. The ENGINEER may assign a rating of
'Excellent", "Good" "Fair', or "Poor . The ENGINEER shall document the stream
conditions assessment efforts with labeled digital photographs. The ENGINEER shall
populate a GIS geodatabase of identified areas of concern.
d Field Surveys
All bridges, culverts, and critical stream cross -sections (having substantial change in
channel geometry and/or bed slope in contrast to upstream or downstream cross -
sections) should be surveyed. The field surveys shall include any headwalls and
outfalls along the channel The maximum stream length distance between any two
surveyed cross -sections shall not exceed approximately 1,500 feet. The City's Project
Manager shall review the number of open channel cross-section and hydraulic structure
surveys prior to a final scope of work. [The ENGINEER is to include the number of
open channel cross-section and hydraulic structure surveys in the final scope.] The
ENGINEER shall follow the current version of FEMA Guidelines and Specifications for
Flood Hazard Mapping Partners Appendix M: Data Capture Standards to collect field
survey data for open sections, bridges, culverts, and dams
Benchmarks shall be located and recorded for survey control. Available elevation
reference marks shall be located and recorded at surveyed hydraulic structures. If
elevation reference marks can not be located, they may be set at each surveyed
hydraulic structure as a chiseled mark in a headwall, wingwall, bridge deck etc in a
manner suitable for future reference. The ENGINEER shall establish primary and
secondary control points for survey. Primary control points are typically iron rods that
are suitable for future reference. Secondary control points are set at each surveyed
cross section and are intended to establish the primary control data at each cross-
section. Secondary control points are typically nails and are not intended to be
permanent. The current version of FEMA Appendix M: Data Capture Standards shall
be used a guide to setting elevation reference marks.
Field surveys of stream cross -sections shall be representative of the natural ground of
the channel and overbanks Surveys of bridges, culvert, dams or other hydraulic
structures shall be representative of the hydraulic structure s geometry. A typical
ground cross-section shall be surveyed upstream of the structure Measurements and
survey points defining the geometry of the hydraulic structures shall all be recorded in
field notes.
ATTACHMENT "A"
Page 5 of 19
Field survey notes shall represent graphically and clearly, in plan and profile view, what
was surveyed, photographed, and recorded. All of the sketches should depict the
u pstream face of the structure as well as the direction of flow.
Digital photos shall be taken at each surveyed stream cross-section looking upstream
and looking downstream at the channel. Photos of the upstream and downstream faces
of the hydraulic structures shall be taken along with the upstream and downstream
channel Wherever possible, the pictures should contain the entire face of the structure.
The ENGINEER will use the survey codes and format outlined in the FEMA Appendix
M Data Capture Standards for survey text files. The text files shall include point
n umber, northing, easting, elevation, and description. The ENGINEER shall submit the
survey data as text files and in a GIS shapefile format.
It is the responsibility of the ENGINEER to obtain property owner permission to perform
surveys outside of City easements. The ENGINEER shall notify the local property
owners that surveys and field reconnaissance will be conducted for a certain period
time.
e. Finished Floor Elevations
The ENGINEER shall determine the finished floor elevations and lowest adjacent
grades of buildings and residential homes within the current effective floodplain and
anticipated revised areas. The ENGINEER shall meet with the City s Project Manager
and discuss which buildings and homes will be surveyed prior to a final scope of work
Finished floor elevations shall be a separate budget item from the field surveys.
[ENGINEERA Add to study task unique activities particular to study that are beyond the
standard scope.]
Task 2 Deliverables:
• Documentation
o Data Collection — Summary of Data Collection efforts and methodology
including a list of data collected and sources and locations of reported
flooding "hot spots" within the immediate study area.
o Field Reconnaissance — Summary of Field Reconnaissance efforts
including labeled digital photos and locations of special physical
characteristics relevant to modeling and number and locations of
crossings.
o Stream Condition Assessment — Summary of assessment including
labeled digital photos and locations of observed areas of concern The
ENGINEER shall include labeled digital photos and comments on
conditions
o Field Surveys — Summary of field survey efforts including primary control
points and locations, elevation reference marks, and locations of surveyed
roadway crossings and open sections
ATTACHMENT "A"
Page 6 of 19
o Finished Floor Elevations — Summary of finished floor elevation survey
efforts including homes and structures surveyed, finished floor elevations,
and lowest adjacent grade.
• Digital Data
o Data Collection — Data collected from the City and other sources for the
study.
o Field Reconnaissance — Labeled digital photos and locations of areas of
concern.
o Stream Conditions Assessment — Labeled digital photos and locations of
areas of concern and a GIS geodatabase of identified areas of concern.
o Field Surveys
■ Text Files: Survey text files in ASCII format of primary control
points, secondary control points, elevation reference marks,
surveyed hydraulic structures and stream cross -sections.
■ Field Notes: Field notes in PDF format of surveyed hydraulic
structures and stream cross -sections.
■ Photos: Labeled digital photos of surveyed hydraulic structures and
stream cross -sections.
■ GIS Files: Shapefiles of survey data of primary control points,
elevation reference marks, and hydraulic structures and stream
cross -sections.
■ Work Maps: Work maps depicting survey data and locations.
o Finished Floor Elevations
• Text Files: Survey text files in ASCII format of finished floor
elevations and lowest adjacent grade.
• Field Notes: Field notes in PDF format taken during survey efforts.
• GIS Files: Shapefiles of survey data of finished floor elevations and
lowest adjacent grade.
• Work Maps: Work maps depicting survey data and locations.
o ENGINEER will provide all the finished floor survey data including control,
finished floor elevations lowest adjacent grade elevations and locations,
GIS files field notes, and ASCII text files
• One set of CD/DVDs containing electronic versions of all information
(intermediate and final data and photos) gathered in this Task.
Task 3: Development of Detailed Hydrologic Models
The ENGINEER shall develop detailed existing land -use conditions (and/or ultimate -
development land -use conditions based on 2009 comprehensive plan if applicable)
HEC-HMS models for the watershed. The City will determine if ultimate development
land -use conditions are warranted for the study The ENGINEER may use HEC-
GeoHMS as a preprocessor to provide base information for the new hydrologic model.
The hydrologic model shall be fully geo-referenced for seamless incorporation into the
City's GIS inventory. The ENGINEER shall fully annotate the HEC-HMS model,
including descriptive comments in all relevant fields, and clearly label the simulation
ATTACHMENT "A"
Page 7 of 19
runs with respect to the return period. The ENGINEER shall coordinate any occurrence
of inter -basin transfer of flow with the City's Project Manager. If knowledge of inter -
basin transfer of flows is known during the preparation of the scope, the ENGINEER
shall provide details on how the hydrology and hydraulics will be modeled
The ENGINEER shall use the 2-, 5-, 10-, 25-, 50-, 100- and 500-year return events to
develop hydrologic and hydraulic models, water surface elevation profiles, and
floodplain maps. If the basin is fully developed then ultimate land -use conditions will be
assumed as "Existing Conditions". The ENGINEER shall model the 100-yr return event
for ultimate conditions if existing conditions in the basin are not fully developed. The
ENGINEER shall use representative historical rainfall data to perform hydrological
analysis to perform a high water mark simulation/validation with hydraulic models.
a. Rainfall
The ENGINEER shall use a 24-hour duration storm (SCS Type II or frequency) for the
meteorological model and shall use the City of Fort Worth Storm Water Management
Design Manual Appendix A rainfall depth -duration -frequency tables.
b. Data Sources
The ENGINEER shall review the current effective hydrologic and hydraulic models,
Letters of Map Revision (LOMRs) approved after the current effective FIS study and
City of Fort Worth land development studys and incorporate them into the study as
appropriate
The ENGINEER may obtain "as built" drawings from the City (if available) for
constructed regional ponds and other large residential and commercial ponds to be
modeled. The stage -storage -discharge (SSD) rating curve for these ponds used in the
model shall be verified as being accurate. If necessary, the SSD curves may be re-
developed. In all cases, the SSD rating curve shall be the same for both the hydrologic
and hydraulic models.
The existing land -use conditions data, the 2009 projected future (ultimate) development
land -use conditions data, topographic data (2007 ACS surface data) and the latest
Natural Resources Conservation Service (NRCS) Soil Survey Geographic (SSURGO)
database shall be used in the hydrologic model development.
c Model Development
The ENGINEER shall coordinate watershed boundaries with other concurrent studies.
The subbasin size shall not exceed one-third of a square mile. Use of larger subbasins
shall be discussed with the City's Project Manager. Break points (junctions) may be set
at certain locations if requested by City's Project Manager. The ENGINEER shall
conduct a `working session" with City staff to finalize watershed basin boundaries and
junctions.
If a conflict exists on a watershed boundary determination it is usually the topographic
data, not the storm drain system, that determines the watershed boundaries. However,
ATTACHMENT "A"
Page 8 of 19
if storm drain trunk lines or any other diversion/by-pass hydraulic structures exist in the
watershed and divert a significant amount of flow from one basin to another, those
hydraulic structures shall be modeled in the study.
The SCS unit hydrograph shall be utilized for developing the HMS model.
The TR-55 equations and curves for estimating the time of concentration for overland
(sheet) flow, shallow concentrated flow, and channel flow shall be used. Overland
(sheet) flow length shall be no more than 50 — 100 feet for urban land -use conditions.
The ENGINEER shall delineate and depict the longest flow path per subbasin and
include the length and time of concentration per segment.
The
The SCS curve number method shall be used for loss rate estimation. The ENGINEER
shall prepare a table of impervious cover percentages and curve numbers for various
land uses and soil conditions based on the City of Fort Worth Storm Water Management
Design Manual. The runoff curve numbers for open space and undeveloped areas shall
be based on the cover type and hydrologic condition of "Open Space Good Condition.'
The composite curve number for each subbasin shall be computed based on a
composite percentage of soil types.
For modeling the existing land -use conditions of a suburban watershed, the impervious
cover percentage shall be determined based on zoning districts. Impervious cover
percentages per zoning district are listed in Table 1.
The ENGINEER shall use the NCTCOG existing land -use spatial data and City 2007
aerial imagery to confirm that the current zoning districts have an accurate land use
assignment. It is the ENGINEER's responsibility to properly determine the impervious
cover percentage for sparsely located farmland houses which may or may not be
directly connected to a surface drainage system. The ENGINEER shall use the City
2009 comprehensive plan to determine the impervious cover percentage for ultimate
conditions for future growth and development. The composite impervious cover
percentage and soil -based composite runoff curve numbers for each subbasin shall be
summarized in a table of subbasin parameters.
Table 1. City of Fort Worth Suburban Existing Land Use Impervious Cover
Land -use Code
AG
CF
DD
HC
HSE
MH
PD
A-2.5A
A-43
ATTACHMENT "A"
Page 9 of 19
Land -use Description
Agricultural
Community Facilities
Demolition Delay
Historic and Cultural
Highly Sig. Endange.
Manufactured Housing
Planned Development
One Family (min 2 5 acre)
One Family (min 1 acre)
Average Percent Impervious
35
85
85
85
85
65
85
35
35
i
1
A-21
A-10
A-7.5
A-5
AR
B
R1
R2
CR
C
D
MU-1, MU-1G
MU-2, MU-2G
TU
ER
E
FR
F
G
H
1
J
K
One Family (min 0.5 acre)
One Family (min 10,000 sq. ft )
One Family (min 7,500 sq ft.)
One Family (min 5,000 sq. ft.)
One Family Restricted (min 3,500 sq. ft.)
Two Family
Zero Lot Line/Cluster
Townhouse/Cluster
Low Density Multifamily
Medium Density Multifamily
High Density Multifamily
Low Intensity Mixed Use
High Intensity Mixed Use
Trinity Uptown
Neighborhood Commercial Restricted
Neighborhood Commercial
General Commercial Restricted
General Commercial
Intensive Commercial
Central Business
Light Industrial
Medium Industrial
Heavy Industrial
37
49
55
61
65
65
65
65
40
55
65
96
96
96
96
96
96
96
96
96
96
96
96
d. Routing
The ENGINEER shall use the Modified Puls or the Muskingham-Cunge routing methods
to attenuate the runoff hydrograph. Other routing methods shall require the approval of
the City.
e Depth -Area Analysis
Depth -Area Analysis (areal reduction) shall be used for watersheds with a drainage
area of 9.6 square miles or greater. If necessary, peak flow tables for each return
period and for both existing and future land -use conditions will be provided with peak
flows computed at all subbasin outlets and hydrologic junction points with areal
reduction for drainage areas (in square miles) of 0.0, 10, 20, 30, etc. up to the total
watershed area. The peak discharge will be interpolated based on the drainage area at
the appropriate junction location. The following is an example of the table:
100-Year Peak Flows (cfs) Under Existing Land -Use
Conditions
Hydrologic
Element
J160W
ATTACHMENT "A'
Page 10 of 19
Drainage
Area
(sq mi)
7.576
Storm
Area
0 mi2
12140
Storm
Area
10 mi2
11610
Storm
Area
20 mi2
11150
Storm
Area
30 mi2
10770
J160K
JWCR160
WCR160
J130W
JWCR130
JWCR120
WCR1100
JWCR1170
WCR120
i
i
i
8.011
15.587
15.587
15.767
17.91
18.364
18.364
18.78
18.78
12160
22230
22070
22110
24390
24820
24680
24790
24730
11750
21460
21320
21350
23570
23990
23840
23950
23890
11360
20770
20620
20660
22810
23210
23050
23160
23100
11030
20190
20020
20060
22090
22470
22350
22450
22410
To estimate the 100-year peak flow at the junction J130W, one may code a linear
interpolation formula in an Excel Spreadsheet to linearly interpolate the 100-yr peak flow
at this junction location, e.g., Q(J130V1)=21350+(15.767-10)/(20-10)*(20660-
21350)=20952 cfs.
f. Results
The model results shall be compared to available reliable recorded/historical rainfall -
runoff data, including historic storm events. If no reliable recorded/historical rainfall -
runoff data is available, the ENGINEER may run checks with other sources of data such
as the local/regional regression equations, Current Flood Insurance Study, or the
USGS's frequency -based 100-year peak flow versus watershed drainage area curve for
similar watersheds. If significant differences are found, adjustments to the hydrologic
model may be required.
The ENGINEER shall prepare a table of peak flow rates for each of the return events
analyzed. The ENGINEER shall compare the peak flows from the new study to those of
the current effective (if available). The comparisons shall be summarized in the report.
The ENGINEER shall document the methodologies and assumptions for each subbasin,
details of calculating the time of concentration, subbasin and longest flow path
delineations, creek centerline, software, and data sources used, any significant changes
in flows between the old and new hydrologic models with an explanation of differences,
and a table containing peak flows at each subbasin, junction, and pond location with
areal reduction (if applicable), and any special technical issues and resolutions.
ENGINEER: Add to task study unique activities particular to study that are beyond the
standard scope.]
Task 3 Deliverables:
o Documentation
o A summary of the Task and a description of methodologies and
assumptions used. The detailed summary shall include design criteria,
software used, source data, watershed delineation method, watershed
parameters, modeling considerations, and any special technical issues
and resolutions.
o A summary of results and a comparison with effective discharges.
ATTACHMENT "A"
Page 11 of 19
o Any relevant correspondences, discussions, and technical decisions
regarding model development including review comments and special
issues.
• Digital Data
o Hydrologic Model: One digital copy of the final, working, and fully -
annotated HEC-HMS hydrologic model that provides peak flow rates for
the 2-, 5-, 10-, 25-, 50- 100- and 500-year floods together with all
supportive GIS and modeling data (including DSS files) for the HEC-HMS
models (current non -beta HEC-HMS version at time of delivery).
o GIS Data Supportive GIS and modeling data including the watershed
delineation, longest flow path. (If applicable) An ArcGIS 9.2 or later
version of a personal geodatabase containing all final vector information
developed under this task.
o Support Electronic versions of all information gathered, supporting
materials and data in developing the hydrologic models, and work
products created in this task, such that the models can essentially be
duplicated with the backup data.
• The ENGINEER shall submit two sets of DVDs containing electronic versions of
all information gathered and work products created in this task.
Task 4• Development of Hydraulic Models and Floodplain Maps
The ENGINEER will use the latest HEC-RAS model software to develop hydraulic
models for the study. The ENGINEER may use HEC-GeoRAS as a preprocessor to
provide base information to the hydraulic model and as a post -processor to map the
floodplains. The ENGINEER shall fully annotate the HEC-RAS model including
descriptive comments in all relevant fields, and clearly label the flow data profiles with
respect to return period. Cross -sections or bridge/culvert structures that incorporate
survey data shall include the survey data source, date and hydraulic structure name in
the cross section data description. The ENGINEER may use FEMA's CHECK-RAS
program to do an initial verification of the HEC-RAS models and address the issues it
finds or provide an explanation of why a correction was unnecessary. The hydraulic
model will be fully geo-referenced for seamless incorporation into the City's GIS
inventory.
a Model Development
The ENGINEER shall prepare the models to run under steady state conditions. The
ENGINEER will meet with the City's Project Manager to determine whether an unsteady
state model is warranted
Surveyed bridges, culverts, and critical stream cross -sections (having substantial
change in channel geometry or slope) shall be incorporated into the HEC-RAS model
ATTACHMENT 'A
Page 12 of 19
Other non -critical stream cross -sections shall be cut from the City's topographic data (if
available) or the most accurate topographic data available. The cross-section layout
shall be set in a reasonable manner consistent with the respective DFIRM (if available)
taking into consideration hydraulics and floodplain mapping. As a general guideline
spacing between any two cross -sections shall not exceed approximately 200 ft unless
directed by the City's Project Manager. The ENGINEER will conduct a "working
session' with the City staff to review cross -sectional cut -line locations and layout. The
ENGINEER will proceed with detailed hydraulics following City's review of the cross-
section cut -line layout or as directed by the City's Project Manager. The ENGINEER
shall discuss with the City's Project Manager whether channel invert interpolation
between surveyed cross -sections is required. Interpolated cross -sections shall be kept
to a minimum. If interpolated cross -sections are used in the development of the
models, each section shall be labeled and described in the model and identified on a
work map of the cross-section layout. The ENGINEER shall describe in the written the
report the purpose of the interpolated cross -sections. All cross-section stations and
reach lengths shall be rounded to the nearest foot.
The ENGINEER shall assign Manning's n-values to a specific channel or over -bank
area based on actual physical conditions using information from field reconnaissance,
aerial photos, and the City of Fort Worth Storm Water Management Design Manual n-
value reference tables Composite n-values are recommended for the left overbank,
channel, and right overbank. Caution will be exercised not to over- or under -estimate
the `n" values. The composite 'n" value in over bank flow areas shall be limited to 0 15.
For any "n' value exceeding 0 15, the ENGINEER shall inform and discuss with the
City s Project Manager for a final decision It is recommended that the ENGINEER use
the HEC-RAS functions of "blocked obstruction" and "ineffective flow area' whenever to
enhance the model.
The ENGINEER shall recreate or confirm the limits of the floodway. A floodway will not
be evaluated or created for study areas that do not have an existing floodway.
b. Flow Data
Peak flows computed from a hydrologic model with proper areal reduction (if applicable)
shall be put into the hydraulic model as close as possible in terms of location, e.g.,
subbasin junction location in HEC-HMS versus cross-section location in HEC-RAS. A
table showing the HEC-RAS cross-section flow change locations and the corresponding
HEC-HMS junction name shall be provided. The peak flow shall be the same in both
models In the case that a creek or channel runs through a subbasin in a hydrologic
model (see an example attached below), the additional outflow from the subbasin shall
be proportionally inserted in one of the following two methods: (Method 1) at 1/3 or at
2/3 of the channel segment within the subbasin, or (Method 2) approximately at middle
of the channel segment (Figure 1).
ATTACHMENT 'A
Page 13 of 19
c rn=total peakdischarge at
the outlet of the subbasin
Flew (Q t) from HMS at
the closest junction
unct
RAS input way 1
42=Q1+1/31dQ
Flow (Q4) from H?•1S at I
the nearby junction point
RAS Input way 2:
(D.5= 0.1+dQ=Qm
l
dQ is the net added flow from
each flow -through subbasin
with areal reduction
11
gar .r
Figure 1. Flow Change Locations
•
If the ENGINEER determines that either procedure will not accurately represent the
additional flow between hydrologic analysis points, the ENGINEER shall inform and
discuss with the City's Project Manager flow change locations.
c. Results
If data is available, model results shall be compared with recorded stage levels or
checked against known high water marks. The model results shall also be compared to
known flooding events. If significant differences are found, adjustments to the hydraulic
model may be required.
The ENGINEER shall document all methodologies and assumptions, software used,
data sources, problem areas, and significant changes in water surface elevations
between the old and new hydraulic models.
The ENGINEER will eliminate crossing profiles; however, given the number of profiles
(for existing and future conditions) and the potential for minimal differences in computed
flow rates, it is possible that some minor crossing of profiles cannot be resolved. The
ENGINEER will coordinate these issues with the City staff.
The ENGINEER shall produce an updated or new floodway data table. The lettered
section should correspond with the locations of the effective study,
ATTACHMENT "A"
Page 14 of 19
The ENGINEER will produce water surface elevation profile plots for the 10-, 50-, 100-,
and 500-year flood frequencies using FEMA RASPLOT 2.5 or later. The ENGINEER
shall reference the existing Flood Insurance Study profile plots for plot scale.
The ENGINEER shall delineate the floodway and the 100- and 500-yr floodplains
through the study area. If applicable, the 100-yr floodplain for ultimate conditions will
also be delineated. The ENGINEER shall produce work maps that show the following
minimum information in and near the floodplains: (1) Cultural features, such as
railroads, airfields streets, roads public schools, highways, levees, dikes, dams and
other flood -control structures, and other prominent man-made features and landmarks*
(2) Hydrographic features, such as rivers, streams lakes and ponds, and channels
(including both banks of a stream when graphically possible); (3) Corporate limits,
extraterritorial jurisdiction limits and boundaries of excluded areas (4) Elevation
reference marks (ERM), and (5) Grid lines (State Plane North Central Texas Survey
Feet) with appropriate values annotated.
Base Flood Elevations (BFEs) will be generated and shown by wavy line contours
drawn normal to the direction of the flow of water, perpendicular to the floodplain, but
not necessarily perpendicular to the stream centerline They shall extend completely
across the existing conditions 100-year floodplain Each BFE notation shall indicate its
elevation (NAVD88) to the nearest whole foot.
[ENGINEER' Add to task study unique activities particular to study that are beyond the
standard scope.]
Task 4 Deliverables:
• Documentation
o A summary of the Task and a description of methodologies and
assumptions used. The detailed summary shall include design criteria,
software used source data, cross -sections, modeling considerations and
any special technical issues and resolutions.
o A summary of results and a comparison with effective water surface
elevations Include floodplain and floodway delineations and BFEs One
set of hard copies of the floodplain maps, separated by existing and future
land use conditions, preferably printed in the format of DFIRM panels.
o Any relevant correspondences, discussions and technical decisions
regarding model development including review comments and special
issues.
• Digital Data
o Hydraulic Model One digital copy of the final, working, geo-referenced,
and fully -annotated HEC-RAS hydraulic model that provides peak flow
rates for the 2-, 5-, 10-, 25- 50- 100-, and 500-year floods together with
all supportive GIS and modeling data for the RAS models (current non -
beta HEC-RAS version at time of delivery).
o GIS Data: Supportive GIS and modeling data including the stream
centerline, cross -sections, floodplain delineations, and BFE's (If
ATTACHMENT "A"
Page 15 of 19
applicable) An ArcGIS 9 2 or later version of a personal geodatabase
containing all final vector information developed under this task.
o Support Electronic versions of all information gathered supporting
materials and data in developing the hydraulic models, and work products
created in this task such that the models can essentially be duplicated
with the backup data. PDF format files of the floodplain maps, separated
by existing and ultimate land use conditions, preferably in the format of
DFIRM panels. PDF format files and DWG files of the RASPLOT profiles.
• The ENGINEER shall submit two sets of DVDs containing electronic versions of
all information gathered and work products created in this task such that the
models and floodplain maps can essentially be duplicated
Task 5: Watershed Flood Hazard Assessment
The ENGINEER shall assess the capacity of stream roadway crossings and summarize
flooding hazards at the stream roadway crossings The ENGINEER shall provide an
estimate of the number of roadway crossings inundated and depth of inundation for
each return event analyzed. The ENGINEER shall document the results from the
watershed flood hazard assessment.
[ENGINEER: Add to task study unique activities particular to study that are beyond the
standard scope.]
Task 5 Deliverables:
• Documentation
o A summary of the flood hazards within the watershed including all of the
stream roadway crossings with general address, description of roadway
crossing, roadway crest elevation reach, HEC-RAS river station, and
depth of flooding for the existing and fully developed storms.
• Digital Data
o (If applicable) An ArcGIS 9.2 personal geodatabase containing all final
vector information developed under this task.
Task 6: Proposed Flood Mitigation Alternative Analysis (if required)
The ENGINEER shall assess the conditions of the study area and revise or develop a
master plan of proposed improvements and flood hazard mitigation. Alternatives to be
considered will include but are not limited to open channel improvements, detention,
and property buy-outs and building/house removal. This task will consider flooding
issues identified in Task 5 to determine the potential flood reduction benefits of flood
mitigation. The ENGINEER shall determine appropriate acquisition data based on
current available appraisal district data. [ENGINEER to estimate the number and type
of alternatives to be included in the analysis in conjunction with City staff]
ATTACHMENT 'A
Page 16 of 19
The ENGINEER shall develop and discuss realistic preliminary alternatives with the
City's Project Manager prior to analysis The ENGINEER shall then evaluate the
preliminary alternatives discussed and make necessary revisions. The ENGINEER
shall discuss the revised alternatives with the City's Project Manager before finalizing
the conceptual mitigation alternatives. The alternatives may be finalized prior to the
public meeting discussed in Task 1. City utility crossing potential conflicts shall be
considered and identified in the development of the alternatives.
The ENGINEER shall document all methodologies and assumptions used to analyze
the conceptual flood mitigation alternatives and significant changes in water surface
elevation between the existing conditions model and the improvement alternatives
model. Any modifications to the hydrologic features developed for Task 3 as a result of
the improvements shall be discussed with the City's Project Manager. The ENGINEER
shall rerun routing for the alternatives.
A benefit cost analysis (BCA) shall be conducted using the FEMA Mitigation BCA
Toolkit Version 3.0 (July 2006) The ENGINEER shall use a discount rate of 7% and a
project life of 50 years. The ENGINEER will evaluate the BCA based on the storm
events outlined in Table 1 and the potential damages to residential, commercial and
industrial structures. The benefit cost analysis may be used to prioritize the mitigation
alternatives. The conceptual opinions of probable cost shall include a contingency cost
of thirty (30) percent and engineering and surveying cost of ten (10) percent.
[ENGINEER& Add to task study unique activities particular to study that are beyond the
standard scope.]
Task 6 Deliverables:
• Documentation
o A summary of the Task and a description of methodologies and
assumptions used The detailed summary shall include design criteria,
software used, source data, cross -sections, modeling considerations and
any special technical issues and resolutions.
o A summary of results and a comparison with existing water surface
elevations from Task 4.
o Any relevant correspondences, discussions, and technical decisions
regarding model development including review comments and special
issues.
• Digital Data
o Hydrologic Model: (if applicable) One digital copy of the final, working, and
fully -annotated HEC-HMS hydrologic model (if different from Task 3) that
provides peak flow rates for the 2-, 5-, 10- 25- 50-, 100-, and 500-year
floods together with all supportive GIS and modeling data (including DSS
files) for the HEC-HMS models (current non -beta HEC-HMS version at
time of delivery)
ATTACHMENT "A"
Page 17 of 19
o Hydraulic Model: One digital copy of the final, working, geo-referenced,
and fully -annotated HEC-RAS hydrologic model that provides peak flow
rates for the 2-, 5-, 10-, 25- 50-, 100-, and 500-year floods together with
all supportive GIS and modeling data for the RAS models (current non -
beta HEC-RAS version at time of delivery)
o GIS Data: Supportive GIS and modeling data including the stream
centerline, cross -sections, floodplain delineations and proposed
conceptual alternatives. (If applicable) An ArcGIS 9.2 or later version of a
personal geodatabase containing all final vector information developed
under this task.
o Support Electronic versions of all information gathered, supporting
materials and data in developing the hydraulic models, and work products
created in this task such that the models can essentially be duplicated
with the backup data. PDF format files of the floodplain maps preferably in
the format of DFIRM panels.
• The ENGINEER shall submit two sets of DVDs containing electronic versions of
all information gathered and work products created in this task such that the
models and floodplain maps can essentially be duplicated
Task 7: Quality Assurance and Quality Control Procedures
The ENGINEER shall develop a QA/QC procedure meeting or exceeding the
requirements of FEMA for FEMA Digital Floodplain Insurance Rate Mapping projects.
The QA/QC program shall include a multi -level approach to ensure that senior members
of ENGINEER's staff review comment, and approve the completed work Quality
control check lists shall be created for the survey, hydrology, hydraulics, and mapping
elements of the work. Each checklist shall include milestone review events that
describe the items to be reviewed and include documentation of the comments by the
reviewer and responses from the ENGINEER's Project Manager All study materials
presented to the City as draft or final products must be accompanied by QA/QC
certification or they will be rejected by the City. Work on a task shall not proceed until
the milestone event has been reviewed and all necessary revisions to the data are
complete. The checklists shall be signed by the senior task leader, Project Manager,
and the Principal, and are included in the FINAL REPORT. The ENGINEER shall
provide copies of their QA/QC efforts to the City of Fort Worth
The ENGINEER shall retain all work products generated and information gathered and
used during the course of the study. This includes, but is not limited to, base data (such
as City of Fort Worth's base terrain data) as well as intermediate work products (e g the
fill grid used in the hydrologic preprocessor, draft reports, etc.). These items shall be
transmitted to the City of Fort Worth Project Manager by the end of the study.
Task 7 Deliverables:
• Documentation
ATTACHMENT 'A
Page 18 of 19
o Upon completion of the study, the ENGINEER shall submit signed digital
and hard copies of the QA/QC checklists.
Task 8: Letter of Map Revision Application and Support cif required)
The ENGINEER shall prepare a LOMR application package with complete supporting
documentation Following the City s review and approval, the ENGINEER shall
represent the City to submit the LOMR application to FEMA The ENGINEER will
provide the City two copies of the final LOMR application package The City will be
responsible for the payment of FEMA's LOMR review and processing fees. The LOMR
application typically includes the following forms although others may be required for the
floodplain restudy'
Form 1
Form 2
Form 3
Overview & Occurrence
Riverine Hydrology and Hydraulics Form
Riverine Structures Form
The ENGINEER shall respond to comments made by FEMA on the LOMR application
package. Based on the comments received, the ENGINEER shall make necessary
revisions to the LOMR submittal package and address all comments and provide
additional required information to fulfill FEMA requirements for issuance of a of the
FEMA LOMR for this study, if applicable.
Task 8 Deliverables:
• Documentation
o Two copies of the completed LOMR application package.
• Digital Data
o Digital copy of the completed LOMR application package
STUDY Schedule
The study (excluding FEMA review of LOMR if required) should be completed within
twelve months after receiving the Notice to Proceed letter from the City. The
ENGINEER has attached a schedule of tasks within a time frame of 12 months.
ATTACHMENT "A"
Page 19 of 19
EXHIBIT "A-1"
(SUPPLEMENT TO ATTACHMENT A)
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
SOFTWARE AND DATA FILE STANDARDS
The following standards and specifications for hardware, software, file structure,
and data format are specified for consistent data management and model
development Any other hardware, software file structure and data formats
must be compatible with the applications currently used by the City and require
the approval of the City.
Software:
Operating System. Microsoft Windows XP Professional SP2 (32-bit) or
later version
Office Productivity: Microsoft Office 2003 or later
Document Imaging: Adobe Acrobat 7.0 or later
GIS Packages: ESRI ArcGIS Desktop 9.2 or later
GIS Extensions: Spatial Analyst, 3D Analyst
Hydrologic Model GIS Preprocessor HEC-GeoHMS 1.1 or later
Hydraulic Model GIS Preprocessor: HEC-GeoRAS 4.1 or later
Hydrologic Model HEC-HMS 3.0.1 or later
Hydraulic Model: HEC-RAS 3.1.3 or later
FEMA Preparation Software: CHECK-RAS 1.4, RASPLOT 2.5 or later
Others if specified, must be agreed upon by the City
Data File Formats:
Reports: Reports will be provided in Microsoft Word 2003 format or later,
with all images, maps, graphs, tables, etc. embedded in the document so
that an exact duplicate of hard copy reports can easily be created. Also, a
duplicate PDF version of the report shall be created for archival purposes.
Graphs and Tables Tabular information will be provided in Excel 2003
format (or later) and in Access 2003 database format (or later) when a
small database is required. If an enterprise database is deemed
necessary, Oracle 91 or later shall be used
ASCII Text Files: All ASCII text files (other than model inputs and
outputs) will be encoded using ANSI -encoding and will have the file
extension ".TXT" Text files containing comma -delimited information will
have the file extension `.CSV"
Digital Photographs: All photographs taken for the project will be in
digital form at least 1600 X 1200 resolution, full color, and saved in the
JPG file format. Dates and times will be saved in the image, and file
EXHIBIT "A-1"
Page 1 of 3
names will be descriptive (i e. WMS_XS_20343_US.JPG, not
IMG014.JPG). Photos of the channel or cross -sections shall be labeled
as to direction of flow.
S canned Documents: Scanned documents will be provided in Adobe
P DF format, with the entire document appearing in a single file (not
individual PDFs for individual pages or for chapters). Bookmarks to
chapter beginnings and other important pages will be provided in the PDF.
GIS Spatial Data File Formats:
All GIS vector data layers (points, lines, polygons, etc.) shall be provided
in one of the following three ArcGIS compatible formats: personal or
file geodatabase (preferred), shapefile, or coverage. Continuous surface
model data (i.e. DEMs or DTMs) shall be in ESRI s GRID or TIN format.
The City will provide the elevation data for each study area plus a 500 foot
buffer in the LIDAR LAS binary file format. Aerial photography or other
raster imagery will be provided in a common GIS image format (preferably
GeoTIFF), with appropriate header information and a world file for
georeferencing. If large amounts of raster images are required for the
project, and image catalog will be created and provided to the city.
All GIS data, and other files containing coordinates, shall use the State
P lane coordinate system set to the Texas North Central (4202) zone. The
horizontal datum shall be the North American Datum of 1983 (NAD83) and
the vertical datum shall be the North American Vertical Datum of 1988
(NAVD88), both the horizontal and vertical units shall be in feet. All
surveyed data shall be captured or converted to grid coordinates. If
conversion is required, the surface to grid conversion factor shall also be
provided. All GIS datasets shall have the projection defined either
internally (geodatabases) or with a projection file (shapefiles).
A FGDC compliant metadata file shall be provided for each GIS dataset.
This metadata will be compatible with ArcCatalog and saved in XML
format.
Data accuracy shall be reported and checked using NSSDA standards
instead of other older standards like NMAS or ASPRS.
All submitted data files must not contain any server link references to the
server network and file folders
File Structure and File Names:
All files created in this project will be descriptively named, within the limits
of the software Underscores will be used in place of spaces in file
names. File structure should look like the following:
EXHIBIT "A-1"
Page 2 of 3
[I
EXHIBIT "A-1"
Page 3of3
.J) ��•ialalIL=IIIllaaZt . q
�I I,D O1 Report
0 Correspondence
Data Collected
lo Figures
I Misc
lO Photos
r Tables
O f 02 Survey
Field Notes
0 Photos
Spatial Data
Text_Files
03 Models
( Hydraulic Models
I Hydrology_ Models
to 04 Spatial Data
O Hydraulic
Hydrology
OS Profiles
Li 06 Flood_Maps
EXHIBIT "A-2"
(SUPPLEMENT TO ATTACHMENT A)
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
OPEN CHANNEL STUDY REPORT FORMAT
Table of Contents
Task 1: Project Management
• Summary of Tasks
• Support Data
• Project Certification and Decision Log.
Task 2• Data Search, Collection, Field Reconnaissance, Stream Conditions
Assessment, and Surveys
• Data Search and Collection
o Methods
o Hot Spots
o Data Sources
o LOMC
• Field Reconnaissance
o Methodology
o Special Physical Characteristics
• Stream Conditions Assessment
o Methodology
o Identified Areas of Concern
• Surveys
o Control
o Field Survey Methodology
o Finished Floor Elevations
Task 3- Development of Detailed Hydrologic Models
• Task Summary
o Introduction
o Performance Work Statement
o LOMC Incorporation
• Methodology
o Detailed Summary
a Summary of Methodology
® Design Criteria
■ Software
o Drainage Basin Delineation
EXHIBIT 'A-2"
Page 1 of 5
• Topographic Data
• Delineation Method
o Collected Data
• Precipitation
■ Structure Outflow, Elevation, Storage Curves
o Modeling Considerations
• Drainage Area Parameters
• Soil Types and Land -use
• Runoff Losses
• Time of Concentration
■ Unit Hydrograph
• Channel Routing
• Result and Conclusions
o Summary of Results
o Comparison of Effective Discharges with Study Discharges
Task 4: Development of Hydraulic Models and Floodplain Maps
• Task Summary
o Introduction
o Performance Work Statement
o LOMC Incorporation
• Methodology
o Detailed Summary
• Summary of Methodology
• Design Criteria
• Software
o Cross -Sections
• Locations and Layout Considerations
■ Method to Obtain Cross -Sections
• Bridges, Culverts, and Road Crossings
o Modeling Considerations
■ Starting Water Surface Elevation
• Structure and Road Crossing Modeling
® Islands and Split Flows
® Ineffective Flow Areas
• Calibration
■ Floodway
® Special Problems
• Results and Conclusions
o Floodplain Delineation and Mapping
• Method of Delineation
® Base Flood Elevations Results
o Summary of Results
o Comparison of Existing WSELs with Study WSELs
Task 5: Watershed Flood Hazard Assessment
EXHIBIT "A-2"
Page 2 of 5
• Task Summary
• Findings
Task 6: Proposed Flood Mitigation Alternative Analysis
•
•
•
Task Summary
o Introduction
o Performance Work Statement
Methodology
o Detailed Summary
• Summary of Methodology
• Design Criteria
• Software
o Cross -Sections
• Locations and Layout Considerations
• Method to Obtain Cross -Sections
• Bridges, Culverts, and Road Crossings
o Modeling Considerations
• Starting Water Surface Elevation
• Structure and Road Crossing Modeling
• Islands and Split Flows
• Ineffective Flow Areas
• Calibration
• Floodway
• Special Problems
Results and Conclusions
o Floodplain Delineation and Mapping
o Summary of Results
o Comparison of Existing WSELs with Study WSELs
Task 7: Quality Assurance and Quality Control Procedures
• Task Summary
• QA/QC Procedure
o Task 1
o Task 2
o Task 3
o Task 4
o Task 5
o Task 6
o Task 8
• City Notification
Task 8- Letter of Map Revision Application and Support
• Task Summary
• Application Forms
EXHIBIT "A-2"
Page 3 of 5
APPENDICES
APPENDIX A - Figures
• Task 2 — Figures
o Stream Condition Assessment Photos
o Stream Condition Assessment Locations
o Control Points
o Surveyed Structures and Cross -sections
o Surveyed Finished Floor Elevations
• Task 3 — Figures
o Overall Study Area
o Drainage Area Map
o Hydrologic Soils Map
o Land-Use/Zoning Map
o Longest Flow Paths and Time of Concentrations
o Peak Discharge Vs. Drainage Area
• Task 4 — Figures
o Overall Study Area
o Floodplain Maps
o Profiles
• Task 5 — Figures
o Crossings
• Task 6 — Figures
o Overall Study Area
o Floodplain Maps
o Profiles
APPENDIX B — Supporting Documents
• Task 1 — Supporting Documents
• Task 2 — Supporting Documents
o GPS Survey Documentation
• Task 3 — Supporting Documents
o Land -use Classifications
o Composite Curve Number Calculations
o Lag Time Calculations
o Routing Parameters
o Curves
o Results
• Task 4 — Supporting Documents
o As -Built plans
o Summary of Discharges
o Floodway Data Table
o Results
• Task 5 — Supporting Documents
o Table of crossings inundated per study storms
• Task 6 — Supporting Documents
o As -Built plans
EXHIBIT "A-2"
Page 4of5
o Summary of Discharges
o Floodway Data Table
o Results
• Task 8 — Supporting Documents
o Completed LOMR application package (if applicable, however, may be
submitted at a later date.)
• PDF of final report
APPENDIX C — QA/QC
• Task 2 — QA/QC Forms
• Task 3 — QA/QC Forms
• Task 4 — QA/QC Forms
• Task 5 — QA/QC Forms
APPENDIX D — Digital Data
• Task 2 — Digital Supporting Data
o Stream Conditions Assessment Data
o Survey Data
o Spatial Data
o Figures
• Task 3 — Digital Supporting Data
o Hydrologic Models
o Spatial Data
o Figures
• Task 4 — Digital Supporting Data
o Hydraulic Models
o Spatial Data
o Figures and Maps
• Task 5 — Digital Supporting Data
o Figures and Maps
o Spatial Data
o Support Data
• Task 6 — Digital Supporting Data
o Hydraulic Models
o Spatial Data
o Figures and Maps
• Task 8 — Digital Supporting Data
o Completed LOMR application package (if applicable, however, may be
submitted at a later date.)
EXHIBIT "A-2"
Page 5 of 5
EXHIBIT "A-3"
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
AMENDMENTS TO THE STANDARD SCOPE OF SERVICES, ATTACHMENT "A"
TASK 2
d. Field Surveys
The ENGINEER shall survey 9 channel cross sections, 55 Finished Floor elevations,
and 11 hydraulics structures listed in the following table.
Crossing Name Type
1-820 Culvert Culvert
Hemphill Street Culvert Culvert
Lake Greenbriar Dam Dam
Greenbriar Walking Trail Culvert Culvert
Lake Greenbriar Pond
Greenbriar Park Access Drive Culvert Culvert
James Avenue Culvert Culvert
Yates Street Culvert Culvert
Seminary Access Drive Culvert Culvert
Martin Lydon Avenue Culvert Culvert
Frac Pond Pond
Survey Name
S C6-Culv-01
S C6-Culy-02
S C6-Dam-01
S C6-Culv-03
SC6-Pond-01
S C6-Culv-04
S C6-Culv-05
S C6-Culv-06
S C6-Culy-07
S C6-C u lv-08
SC6-Pond-02
f. As -Built Drawings
The ENGINEER shall obtain pertinent as -built drawings from the City or from TXDOT
for the following areas, if available:
1. Storm sewer systems along 1-20/820 west of I-35W.
2. Storm sewer systems located in the general vicinity of the watershed.
3. Obtain As -Built drawings for culvert, bridge, and dam structures along the
watercourse.
4. Obtain design plans from TranSystems for improvements to storm drain
system to the West and associated watershed delineations for InfoWorks
model.
5. Obtain As -built drawings for small detention pond servicing the City of Fort
Worth's City Services Center.
6. Obtain As -Built drawings for frac pond near Southwest Baptist
ATTACHMENT "A-3"
Page 1 of 4
TASK 6
Alternatives to be Analyzed
The ENGINEER will evaluate UP TO four (4) mitigation alternatives for the whole of the
project This includes potential improvement alternatives to the storm drain system, as
the storm drain system and open channel will be considered as one single integrated
system.
Frac Pond:
ENGINEER will consider the frac pond near Yates Street and Townsend Drive as one
possible detention alternative for analysis. Potential environmental issues related to this
alternative will be assessed according to Task 10 of this scope.
Lake Greenbriar:
Engineer will coordinate with the City and other consultants performing work on Lake
Greenbriar or the Lake Greenbriar Dam.
TASK 9 — Storm Drain Modeling
I. This task is to develop a 2D InfoWorks SD model of the upstream storm drain
system at the headwaters of Greenbriar Creek. This model will evaluate
individual inlets, laterals, and all storm drain conduit which conveys runoff from
the west side of Fuller Avenue and discharges into Greenbriar Creek or its
tributary. The total length of storm drain system to be modeled is approximately
8500 linear feet. The storm drain system to be modeled consists of two separate
systems roughly described as:
System 1 — Runs along Yates Street and drains residential neighborhood west of
the railroad tracks near Fuller Avenue via curb inlets and underground conduit.
This system runs underneath the railroad tracks and discharges into a small
o pen channel that is a tributary to Greenbriar Creek This system is
approximately 1500 feet in length.
System 2 — Runs along Creston Avenue, north along Lubbock Avenue, east
along Binyon Street and Fuller Avenue, then curves to the south and east as it
runs underneath the railroad near Fuller Avenue and discharges into the
u pstream end of the Greenbnar Creek channel. This system drains residential
n eighborhood to the west of the railroad along Fuller Avenue as well as a portion
of the South West Baptist Theological Seminary campus via curb inlets and
dosed conduit. This system is approximately 7000 feet in length.
A. Data Collection
1. As -built plans for storm sewer systems to be modeled by InfoWorks.
2. Topographical Survey for InfoWorks model
ATTACHMENT "A-3"
Page 2 of 4
The ENGINEER shall obtain detailed survey data of the storm sewer
system to be modeled with InfoWorks. Survey data shall be
comprehensive topographical survey data of the system and shall
include: manhole locations, elevations, depths, and pipe sizes; inlet
locations length, flowlines, and outlet elevation and size; culvert sizes
elevations and locations; and any other pertinent items or data located
in the field with associated attributes relevant to the modeling.
B. Model Development
1. Hydrology
The ENGINEER will use the same design storms and hydrologic
parameters as those developed for the open channel study portion of
this contract. Individual sub watersheds for each inlet will be delineated
and associated curve numbers for these sub watersheds will be
determined separately for this model.
2. Hydraulics
The ENGINEER will apply all available topographical survey, as -built
plan, field observations and other pertinent data to determine
hydraulic parameters of the storm drain conduit to be modeled.
3. Reporting
The ENGINEER will incorporate results into the study report for the
areas modeled in InfoWorks SD. The report will include detailed
summaries of the modeling methodology, existing hydrology and
hydraulics, model results and associated exhibits
TASK 10 — Water Quality Improvements and Best Management Practices (BMPs)
This item is for the implementation of water quality improvements and continued
research, evaluation, data management, etc for work related to the BMP pilot
study or other BMP work requested by the City. Tasks required to complete this
task are the following:
A. Frac Pond Assessments.
Engineer will develop a preliminary assessment of the
environmental concerns associated with the frac pond located near
Yates Street and Townsend Drive. As part of this preliminary
assessment, Engineer will prepare a work plan outlining and
detailing the further tasks required prior to utilizing the pond for
detention. The preliminary assessment conducted will include:
ATTACHMENT "A-3"
Page 3 of 4
• Ownership research
• As -built drawings of the site (if available)
• Designed purpose of the pond — design, and operation and
maintenance characteristics
• Current regulatory status of the frac pond.
• Preparation of work plan
The work plan will outline further required actions which may
include a full Phase I and a limited Phase II Environmental Site
Assessment to determine the presence and magnitude of
contamination. All environmental work or investigation detailed in
the work plan along with any design related to utilizing the pond for
flood mitigation will be performed as an additional scope and fee.
B. Trash and Sediment Control (Inlet Pilot Study and various CIP)
This item will be for the continued study, analysis, and
implementation of BMPs related to the Pilot Study or other BMP
related tasks as requested by the City. Tasks required to complete
this item are:
i. Site and project assessment
ii. Evaluation of site specific BMPs
Procedures for operation and maintenance of BMPs
iv. Record Keeping and data analysis
C. Credit Program
This items is for the assessment and implementation of the Credit
Program Tasks required to complete this item are:
i. Site and project assessment
ii. Calculation of water quality benefits and applicable credit
iii. Property owner coordination
ATTACHMENT "A-3"
Page 4 of 4
ATTACHMENT "B"
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
COMPENSATION AND PAYMENT SCHEDULE
A. The Engineer shall be compensated a total project fee of $448,904. Payment of
the total lump sum fee shall be considered full compensation for the services
described in Attachment "A' for all labor materials supplies and equipment
necessary to complete the project.
B. The Engineer shall be paid in accordance with 'Exhibit B-1 ", Supplement to
Attachment B Each invoice from the Engineer shall be verified as to its accuracy
and compliance with the terms of this contract by an officer of the Engineer.
Additional Tasks that may be assigned, not currently included in the Scope, may
be billed and paid on an hourly basis for actual hours worked and expenses
incurred, at an hourly billing rate as provided in Exhibit "B-2". No additional
Tasks will be performed without prior written authorization from the City.
D. Professional Services Fee summary is provided in Exhibit "B-3".
E Total project fees including MWBE participation is provided in Exhibit "B-3A".
I. Schedule
The intent of the schedule is to complete the effort described in Attachment "A" and
amended in Attachment `C-1" and deliver a final report within 365 calendar days after
the "Notice to Proceed' letter is issued.
A. A concept report reflecting the data collection (Task 2) will be submitted within 90
calendar days after the "Notice to Proceed" letter is issued.
B. A preliminary report describing the initial hydrologic and hydraulic analysis
(Tasks 3 and 4) will be submitted within 90 calendar days after the submittal of
the concept report.
C. A final report will be submitted 180 calendar days after the submittal of the
preliminary report.
ATTACHMENT "B"
Page 1 of 1
EXHIBIT "B-1'
(SUPPLEMENT TO ATTACHMENT B)
GREENBRIAR CREEK OPEN CHANNEL STUDY
STUDY SWS-021
METHOD OF PAYMENT
&
PROGRESS REPORT REQUIREMENTS
I. Method of Payment
P artial payment shall be made to the Engineer monthly upon City's approval of an
invoice from the Engineer outlining the current labor and expenses of the total
project The aggregate of such monthly partial fee payments shall not exceed the
following:
U ntil delivery of the interim Task 3 submittal (Hydrology), a sum not to exceed 50
percent of the total lump sum fee.
U ntil delivery of the interim Task 4 submittal (Hydraulics), a sum not to exceed 70
percent of the total lump sum fee.
U ntil delivery of the Proposed Flood Mitigation and Alternative Analysis (Task 6), a
sum not to exceed 95 percent of the total lump sum fee.
The balance of fees, less previous payments, shall be payable after delivery of the
FINAL report and electronic files.
II. Progress Reports
A. The Engineer shall submit to the designated representative of the Director of
the Department of Transportation/Public Works monthly progress reports
covering all phases of the analysis in the format required by the City.
B. Periodic reports concerning MWBE participation shall be submitted as required
by the MWBE Office.
EXHIBIT `B-1"
Page 1 of 1
EXHIBIT B-2
Greenbriar Creek Master Plan
SWS-021
IGreenbriar Creek - Open Channel Study � SWS-021
1
Task
Description BGE Estimated Manhours
Principal
Part A - Open Channel Study
Personnel Hourly Rate = $200
1 Project Management
A Project Schedule and Summary of Tasks
B i-monthly project update meetings
ClProject management /develop support data
DlPublic Outreach support
ITask Total BGE
2 IData Search, Collection, Field Recon, Stream Assessment
AlObtain GIS watershed data, develop base mapping
BIHighwater marks, historic flooding data-> "hot spots"
ClHistoric rainfall data
DIAs-built drawings of hydraulic structures
EIFEMA data request and reconciliation
FlReview/adjust watershed and stream centerline
GlField Reconaissance
HlStream Condition Assessment
I+�ield Survey - BGE
JJField Survey Documentation - BGE
KIFinished Floor Elevation Survey - BGE
LIField Survey: Cross Sections, structures
MlField Survey: Finished Floors IL Total BGE
3 Develop Detailed Hydrologic Models
AI eview current models
BlReview past projects
ClExisting and Future Land use
D NRCS soil survey data
E Model subbasin development
FI odel routing development
GJDepth-Area analysis
HIModel Development
IIResults
ITask Total BGE
4 (Develop Hydraulic Models and Floodplaln Maps
AfCross Section Layout and Exhibit
*ode) development
CIMannin9's roughness documentation
DIFIow data
ElFtoodplain delineation
FIFloodway verification / development
GIModel documentation
HjDevelop floodway data table
IlDevelop water surface elevation profiles
"Task Total BGE
5 kwatershed Flood Hazard Assessment
AI oadway crossing inundation analysis
BI3tructure flooding analysis
ITask Total BGE
6 IFIood Mitigation Alternative Analysis
AlOpen channel improvements
B Detention improvements
C Property buyout
DlStructure removal
ElFinalize conceptual mitigation plan
FlBenefit cost analysis
GlDocumentation / Final Report
H Dam Modification Alternatives
task Total BGE
7 IQA/QC procedures
AlDevelop procedures
BIQA/QC performance
8 (Task Total BGE
Letter of map revision support
AILOMR Submittal, Response and support
(Task Total BGE
1
1
1
2
Project Senior Engineer GIS / Designer Admin
Manager Engineer
$188 $150 $105 $90 $65
8
24
12
20
64
2
8
4
8
22
80
60 8
8 _
40 16
188 24
1 2 8
1 2 12
1 2 12
1 2 24
1 2 8
_ 1 2 4
8 8 16
12 8 32
8 2 16
i 1 2 16
2 2 8
Subconsultant pass-throuqh
Subconsultant pass -through
0 I 37 I 34 I 156
1
1
0
0
2
2
2
2
4
2
I
I 2
1
1
1
1
2
2
4
17
2 12
8 8
16
2 8
4 24
8 24
16
24
16 1 16
40 1 148
4 24
2 8 1 84
1 2 24
1 2 8
4 12 24
2 8 16
2 1 4 16
1 1 2 8
1 12 16
14 1 44 1 220
1
1
2
4 1 24
4 1 24
8 1 48
4 16
4 16
4 4
4 4
24 8
4 24
12 1 5
4 1 4
60 1 81
4
30
34
24
24
12 I 32
12 1 32
I
I 44
12
224
40
40
16
32
32
16
16
80
80
r
12
8
4
4
2
8
4
8
4
62
2
8
4
4
22
8
8
8
8
16
56
8
4
12
8
8
4
16
8
Total
2 93
10 110
12 37
8 92
32 332
2 25
23
19
31
11
9
4 J 44
2 62
2 I 32
27
I 16
1
1
1
1
1
1
I
I
1
I
1
1
Estimated
Fee
$10,534
$13,382
$4,676
$11,120
$2,538
$2,468
$2,108
$3,368
$1,328
$1,088
$5,364
$7,666
$3,974
$2,888
$1,876
$43 090
$6,800
10 I 299 I
I I
15 I $1,748
I 19 1 $2,408
I 25 I $2,588
_r 5 I $1,688
33 I $3,668
34 I $4,096
18 $2,056
28 $3,272
2 I 43 I $5,522
2 I 230 1
1 1
1 $3 840
102 I $11,116
35 1 $3,728
I 11 I $1,328
I 48 I $5,792
34 $3,976
22 $2,656
12 $1,393
I 35 I
$3,608
1 I 299 I
1 1
I 37 I $4,028
2 1 35 I $3,798
2 I 72 I
1 1
I 68 $8,072
H20I
$8,072
$2,552
I 28 $3,392
80 $10,512
60 $7,712
4 I 75 I $9.006
I 20 1 $2,612
48 4 I 399 I
8
8
8
8
1 1
2 I 8 I $1,282
2 I 82 I $12,170
4 I 90 I
1 I
8 I 142 I $17,096
8 I 142
6/20/2012
$39,7121
$84,556
$27,046
$37,4371
$7,826
$51,9301
$13,4521
$17,0961
EXHIBIT B-2
Greenbriar Creek Master Plan
SWS-021
I 9 12D Storm Drain Modeling
9-1 Data Collection
A Obtain and review as -built plans for the storm drain system to be
modeled
B Obtain/develop GIS data
C Field Visit
D Field Survey
Task Total BGE 0
9-2 Model Development
A Obtain GIS watershed data, develop base mapping
B Sub Watershed delineation - GIS
c Develop Hydrologic Parameters
0 Develop Hydraulic Parameters
E Create, edit and run models
F Check results, revise models
Task Total BGE 1 0
9-3 Reporting
A Report Writing
B Exhibits
Task Total BGE 1 0
9-4 QA/QC
A Model QA/QC
B Report QA/QC
Task Total BGE 1 0
10 -- Water Quality Improvements and Best Management Practices
A Frac Pond Assessment
B Trash and Sediment Control (Inlet Pilot Study and various CIP)
Site and project assessment
Evaluation of site specific BMPs
Procedures for operation and maintenance of BMPs
Record keeping and data analysis
C Credit Program
•
8
Subconsultant pass -through
8
4
8
4
4
14
8
42
10
10
20
16
12
28
0
2
2
4
4
4
16
16
8
40
8
14
12
16
80
24
154
16
8
24
8
0 8
16
16
32
12
4
4
12
4
36
16
16
0
24 40
50
80 105
40 40
42
Site and project assessment 1 1 80
Calculation of water quality benefits and applicable credit ( 1 115
Property owner coordination ( 25
Task Total BGE
Total Part A
Total Part B
Total Part C
Subconsultant (Survey)
Project Total BGE
0
11
0
0
240
98
11 1 338
Total Project
Personnel Hourly Rate = $200 $188
456 145
285
8
4
10
68
60
182
32 $3,120
32 $3,120
16 $2,344
0 $17,500
0 80
2 28 $3,102
26 $3,334
22 $2,672
32 $3,512
98 $11,392
32 $4,024
2 238
12 42 $4,940
34 $4,160
12 76
8
8
24 $3,848
20 $2,776
44
64 $7,200
54 $7,860
185 $23,025
80 $10,200
52 $7,200
148 $18,120
175 $22,650
25 $3,750
0 783 1566
1080 240 63
226 84 22
1863
438
293 1 1306 324 85
$150 $105 $90 $65
2301
6/20/2012
$26,084
$28,036
$9,100
$6,624
$100,005
$229,165
$52,344
$100,005
$67,390
$381 514
$448,904
EXHIBIT "B-3"
(SUPPLEMENT TO ATTACHMENT B)
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
PROFESSIONAL SERVICES FEE SUMMARY
TASK
Task 1: Project Management
Task 2: Data Search, Collection, Field
Reconnaissance, Stream Condition Assessment,
Task 2: Field Surveys: Cross Sections, Hydraulic
Structures
Task 2: Field Surveys: Finished Floors
Task 3: Development of Detailed Hydrologic Models
Task 4: Development of Hydraulic Models and
Floodplain Maps
Task 5: Watershed Flood Hazard Assessment
Task 6: Proposed Flood Mitigation Alternative
Analysis (if required)
Task 7: Quality Assurance and Quality Control
P rocedures
Task 8: Letter of Map Revision Application and
S upport (if required)
Task 9-1, A-C: Data Collection
Task 9-1, D: Field Survey — Storm Drain Topo
Task 9-2: Model Development
Task 9-3: Reporting
Task 9-4: Part B-4: QA/QC
Task 10: Water Quality Improvements and BMPs
S ERVICE TOTAL
EXHIBIT "B-3"
Page 1 of 1
FEE
$39.712
$34.666
$43,090
$6,800
$27,046
$37,437
$7,826
$51.930
$13.452
$17,096
$8,584
$17.500
$28,036
$9,100
$6,624
$100.005
$448.904
EXHIBIT "B-3A"
(SUPPLEMENT TO ATTACHMENT B)
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
SUMMARY OF TOTAL PROJECT FEES
Consulting Firm Prime Responsibility Amount Percent
$381,514 84.99%
$67,390 15.01 %
Brown & Gay Engineers, Inc.:
P roject Management, Engineering
EBG Engineering, LLC:
S urveying
Total for.. Professional Services $448,904 100%
P roiect Description Scope of Services Total Fee MWBE Fee Percent
EBG Engineering, LLC (see below) $67,390 $67,390 100%
S UB ENGINEER shall participate in performing portions of the following Tasks as
outlined in Attachment "A"
Task 2d: Field Surveys: Field surveying of channel cross sections and structures
Task 2e: Finished Floors: Field surveying of finished floor elevations
Task 9-1d: Field Surveys Field surveying of storm drain features to be modeled
N on-MWBE Participation
None
EXHIBIT B-3A"
Page 1 of 1
0%
IEOR'L' VVOR'JI'J-3t
Lit
DOE CONTRACT
CAPITAL PROJECT BID NUMBER
(Please check one)
Minority/Women Business Enterprise Office
LETTER OF INTENT TO PERFORM AS A SUBCONTRACTOR/SUBCONSULTANT
[NOTE' Pursuant to the City of Fort Worth MWWBE Ordinance, MWWBE firms participating in the program must have current certification status with
the City of Fort Worth prior to award of a contract where they are counted towards subcontracting participation. If the City of Fort Worth determines
that, a firm is not currently MWWBE certified for City of Fort Worth contracts that firm should immediately submit a completed certification application
to the North Central Texas Regional Certification Agency (NCTRCA), 624 Six Flags Drive, Suite 100, Arlington, TX 760111
1. Name of Contract GREENBRIAR CREEK MASTER PLAN (SWSA0211
2. Value of Original Contract $ 448.904
3. Name of Offeror/Prime Contractor or Consultant BROWN & GAY ENGINEERS, INC.
4. The undersigned MWBE firm is prepared to perform the following described work and/or supply the material listed in
connection with the above project (where applicable specify "supply" or "install" or both):
PROVIDE AND PERFORM LAND SURVEYING SERVICES
EBG ENGINEERING, LLC.
(Name of MNBE Firm)
BRJ&IL
Circle on= (dwnerfAithorized Agent of MIWBE firm) Type or Print Name
2°1 "32-(
(Phone Number)
6fro
at the price of $ 67.390
4/16/2012
(Date)
(Signature of 0A raw,
' r or Authoriz'eh Agent of MIME firm)
2,q4M- 2-R 1
(Fax Number)
AFFIDAVIT OF OFFERORIPRIME CONTRACTOR or CONSULTANT
I HEREBY DECLARE AND AFFIRM that 1,
Wm. D. (DOUG) DILLON, PE am the duly authorized representative of
Circle one (Owner/Authorized Agent)
BROWN & GAY ENGINEERS. INC.
Name of Offeror!Prime
and that I have personally reviewed the material and
facts set forth in this Letter of Intent to Perform. To the best of my knowledge, information and belief, the facts In this form are true, and no
material facts have been omitted,
Pursuant to the City of Fort Worth MNUBE Ordinance, any person [entity] who makes a false or fraudulent statement in connection
with participation of a MWWBE in any City of Fort Worth contract may be referred for debarment procedures under the City of Fort
Worth MWWBE Ordinance.
do solemnly swear or affirm that the signatures contained herein and the information provided by the offeror/prime are true and
correct, and that I authorized on behalf of the offeror/prime to make the affidavit.
WM. D. DOUGH DILLON, PE BROWN & GAY ENGINEERS, INC
circle One (Ownerl orized Agent Type or Print Name (Name of OfferlPrime) Type or Print
/t 0/17- f?‘
(Signature Owner or Authorized Agent) /'
• (Date)
972-464-4805 972-464-4899
(Phone Number) (Fax Number)
4/16/2012
01/14/09
ATTACHMENT "C"
GREENBRIAR CREEK MASTER PLAN
STUDY SWS-021
AMENDMENTS TO STANDARD AGREEMENT FOR ENGINEERING SERVICES
ATTACHMENT "C"
Page 1 of 1
ID
1
2
3
4
6
13
21
37
38
41
49
50
51
54
56
57
62
69
72
75
77
-0LA
:Task Name
i
Greenbriar Creek Open Channel Study
Notice To Proceed
Project Planning/Kickoff Meeting
Project Management
Data Collection
Hydrology
Hydraulics
Duration
Start
Finish 2012
Jan
261 days Tue 5/1/12 Tue 4/30/13
1 day Tue 5/1/12 Tue 5/1/12
1 day Wed 5/9/12 Wed 5/9/12
260 days Wed 5/2/12 Tue 4/30/13
47 days Thu 5/10/12 Fri 7/13/12
26 days Mon 7/16/12 Mon 8/20/12
48 days Fri 8/3112 Tue 10/9/12
75% City Review and Meeting to discuss alters 30 days
Watershed Flood Hazard Assessment
Flood Mitigation Alternative Analysis
Wed 10/10/12 Tue 11/20/12
20 days Wed 11/21/12 Tue 12/18/12
49 days Wed 12/19/12 Mon 2/25/13
90% City Review
Finalize Master Plan and Submit
30 days
15 days
QA/QC Procedures
Letter of Map Revision Support
2D Storm Drain Modeling
Data Collection
Model Development
Report
QA/QC
Address City Review Comments
Tue 2/26/13 Mon 4/8/13
Tue 4/9/13 Mon 4/29/13
240 days Wed 5/23/12
30 days Tue 2/26/13
169 days Thu 5/10/12
40 days Thu 5/10/12
49 days Thu 7/5/12
20 days Wed 9/12/12
30 days Wed 8/29/12
30 days Wed 11/21/12
City Review
30 days
Project: GreenbriarinitialSchedule201
Date: Mon 4/9/12
Task
Split
Wed 10/10/12
Progress
Milestone
Tue 4/23/13
Mon 4/8/13
Tue 1/1/13
Wed 7/4/12
Tue 9/11/12
Tue 10/9/12
Tue 10/9/12
Tue 1/1/13
Tue 11/20/12
Greenbriar Creek Master Plan, SWS-021 - Project Schedule
Feb
Summary
Project Summary
Mar
Apr I Mav ! Jun
Jul
AUQ
Sep
V External Tasks j Deadline
External Milestone O
Oct
Nov
Dec
�t
2013
Jan i Feb ! Mar
b
Apr Mav
Page 1
M&C Review
Page 1 of 2
CITY COUNCIL AGENDA
DATE:
CODE:
SUBJECT:
COUNCIL ACTION: Approved on 6/5/2012
6/5/2012 REFERENCE
NO.:
Official site of the City of Fort Worth, Texas
FORT WORTH
Miter-
*"C-25630 LOG NAME: 20SWMGREENBRIARCREEK
C TYPE• CONSENT PUBLIC NO
HEARING*
Authorize Execution of an Agreement with Brown & Gay Engineers, Inc., in the Amount of
$448,904.00 for the Greenbriar Creek Master Plan (COUNCIL DISTRICTS 6 and 9)
RECOMMENDATION:
It is recommended that the City Council authorize the execution of an Agreement with Brown & Gay
Engineers, Inc., in the amount of $448,904 00 for the Greenbriar Creek Master Plan
DISCUSSION:
The study recommended by this Mayor and Council Communication will evaluate flood mitigation
alternatives for the purpose of protecting structures from flooding in the Greenbriar Creek tributary to
Sycamore Creek in southeast Fort Worth near the intersection of I-35W and 1-20 There are 21
buildings in the floodplain of the tributary. This study will include the development of a comprehensive
model and map of the floodplain. This data has not been updated since the last Flood Insurance
Study (FIS) in 1986 This study will also evaluate Best Management Practices (BMPs) to improve
water quality of stormwater runoff.
Brown & Gay Engineers, Inc., was one of 23 firms determined to be qualified for this project through a
general Request for Qualifications (RFQ) selection process. Brown & Gay Engineers, Inc., proposes
to perform this study for a lump sum fee in the amount of $448,904.00. Staff considers this fee to be
fair and reasonable for the scope of services proposed, based on the size of the watershed, the
length of the stream and the additional work evaluating water quality BMPs The Storm Water Utility
Fund will be used to fund this study.
Brown & Gay Engineers, Inc., is in compliance with the City's M/WBE Ordinance by committing to 15
percent M/WBE participation. The City's goal for this project is 15 percent.
This project is located in COUNCIL DISTRICTS 6 and 9.
FISCAL INFORMATION/CERTIFICATION:
The Financial Management Services Director certifies that funds are available in the current operating
budget, as appropriated, of the Storm Water Utility Fund.
TO Fund/Account/Centers FROM Fund/Account/Centers
PE69 531200 0209202 $448,904.00
Submitted for Citv Manaaer's Office bv:
Originating Department Head:
Additional Information Contact:
Fernando Costa (6122)
Douglas W. Wiersig (7801)
Ranjan S. Muttiah (7919)
http://apps.cfwnet.org/council_packet/mc_review.asp?ID=16293&councildate=6/5/2012 6/7/2012
M&C Review Page 2 of 2
ATTACHMENTS
Greenbriar.bah
http://apps.cfwnet org/council_packet/mc_review.asp?ID=16293&councildate=6/5/2012 6/7/2012