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Home My WebLink AboutContract 41585 (2)CITY SECRETARY CONTRACT NO. 4' I 5 �,�j STATE OF TEXAS KNOWN ALL BY THESE PRESENTS: COUNTY OF TARRANT THIS AGREEMENT,entered''dayH S into the of OtAaml, , 20 \ by and between the City of Fort Worth, a home -rule municipal corporation situated in Tarrant, Denton, Parker, and Wise Counties, Texas, acting herein by and through its duly authorized Assistant City Manager, hereinafter called the "City", and Halff Associates, Inc., an independent contractor "Consultant". City and Consultant may be referred to herein individually as a Party, or collectively as the Parties. WITNESSETH 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 the Ludelle Creek Master Plan (SWS-029). 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 not exceed a total of $156,595 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 wine. OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX Acceptance by Consultant of said payment shall operate as and shall release the City fiom 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 three years, 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 fiom 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 10.6.09 Page 2 of 10 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 made basis. 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. 1'he certificate of insurance shall state that the coverage is claims -made and include the retroactive date. The insurance shall be maintained for the dui ation 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. Professional Services Consultant Agreement Rev 10.6.09 Page 3 of 10 b. Certificates of insurance shall be delivered to the Transportation and Public Works Department, Attention: Steve Eubanks, 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 tenns 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 measuie of financial strength and solvency. £ 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 administiator 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 10.6.09 Page 4 of 10 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 hxhibit "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 or 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 10.6.09 Page 5 of 10 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/W HE 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 10.6.09 Page 6 of 10 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: Steve Eubanks Tiansportation and Public Works Department 1000 Throckmorton Street Fort Worth, Texas 76102 Consultant: Halff Associates, Inc. Attn: Terry M. Barr 4000 Fossil Cieek Blvd. Fort Worth, Texas 76137 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 counterpart 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 10.6.09 (Remainder of Page Intentionally Left Blank) Page 7 of 10 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: HALFF ASSOCIATES, INC.: crasM+«w4&7 Fernando Costa Assistant City Manager RECOMMENDED: William . Verkest, P.E., Director Departrr e • Transportation and Public Work APPROVED AS TO FORM AND LEGALITY: Assistant City Attorney ATTEST: • (\lt Marty Hendrix City Secretary 3\ \AV-2-J° \\ Date Professional Services Consultant Agreement Rev 10.6.09 J. RV :sell Killen, P.E., CFM Vic - President Cs aLwg Contract Authori nation 111-46 Date Page 8 of 10 OFFMAL, RECORD CITY SECRETARY Ft WORTH, TX ATTACHMENT "A" LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 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 LUDELLE CREEK MASTER PLAN Project Summary a. Purpose of Study The purpose of the study is to conduct a detailed hydrologic and hydraulic analysis of Ludelle Creek (Stream SC-1) and a small tributary that will be referred to as the Panola Branch and to develop a master plan of improvements to protect homes and roadway flooding during the 100-year event. The ENGINEER's services and products resulting from this study shall be referred to as "Ludelle Creek Master Plan'. The ENGINEER shall perform the project 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 Ludelle Creek is located in central Fort Worth and parallels State Highway 180 to the south. Ludelle Creek flows from east to west and confluences with Sycamore Creek approximately 750 feet upstream of SH 180. The reach is approximately 1.25 miles in length and flows through both residential and industrial areas. The Panola Branch is approximately 0.50 miles in length and confluences with Ludelle Creek near the Union P acific Railroad (UPRR) upstream of Conner Street and the industrial park. The Panola Branch runs from the UPRR culvert upstream to the storm sewer system near Jamaica S treet. Task 1: Project Management The ENGINEER's project management activities shall include task leadership and direction, telephone and written communication, bi-monthly project update meetings, project status reports project schedule and updates, and personnel and data management among other general project management activities. Any delays to the project schedule shall be in writing to the City of Fort Worth for review and approval. The ENGINEER shall attend the project kickoff meeting with a proposed schedule for task sequence and completion. The ENGINEER's Project Manager shall schedule and lead all project meetings. Meeting notes shall be submitted to the City of Fort Worth's P roject Manager within five working days after each meeting. The ENGINEER shall attend [minimum of one, ENGINEER modify number according to project] public meeting to present what possible mitigation alternatives are being explored. The ENGINEER will provide to the City project 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 project. The details and structure to be followed are ATTACHMENT A Page 2 of 19 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 Project Certification and Decision Log to be submitted at the completion of the study. [ENGINEER* Add to project task unique activities particular to study that are beyond the standard scope.) Task 1 Deliverables: ® Documentation o Summary of Tasks o Project Schedule o Support Data — Relevant meeting notes and email correspondence, project status updates, and action items for ENGINEER, sub -consultants, and the City of Fort Worth. o Completed Project Certification and Decision Log upon completion of the study. Task 2: Data Search, Collection. Field Reconnaissance. Stream Condition Assessment, and Surveys 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. ATTACHMENT A Page 3 of 19 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 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 ATTACHMENT "A" Page 4 of 19 Flood Hazard Mapping Partners Appendix N: Data Capture Guidelines 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 Guidelines and Specifications for Flood Hazard Mapping Partners Appendix N: Data Capture Guidelines 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. 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 upstream 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 Guidelines and Specifications for Flood Hazard Mapping Partners Appendix N: Data Capture Guidelines for survey text files. The text files shall include point number, 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 ATTACHMENT"A Page 5 of 19 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. [ENGINEER' Add to project 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. 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 ATTACHMENT"A Page 6 of 19 • • 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 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 projects and incorporate them into the study as appropriate. ATTACHMENT A Page 7 of 19 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, 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 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. ATTACHMENT A' Page 8 of 19 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 Land -use Description AG CF DD HC HSE MH PD A-2.5A A-43 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 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) 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 Average Percent Impervious 35 85 85 85 85 65 85 35 35 37 49 55 61 65 65 65 65 40 55 65 96 96 96 96 96 96 96 96 96 96 96 96 ATTACHMENT 'A Page 9 of 19 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 J 160W J160K JWCR160 WCR160 J 130W JWCR130 JWCR120 WCR1100 JWCR1170 WCR120 Drainage Area (sq mi) 7.576 8.011 15.587 15.587 15.767 17.91 18.364 18.364 18.78 18.78 Storm Area Omit 12140 12160 22230 22070 22110 24390 24820 24680 24790 24730 Storm Area 10 mi2 11610 11750 21460 21320 21350 23570 23990 23840 23950 23890 Storm Area 20 mi2 11150 11360 20770 20620 20660 22810 23210 23050 23160 23100 Storm Area 30 mi2 10770 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(J130W)=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. ATTACHMENT "A" Page 10 of 19 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 project unique activities particular to study that are beyond the standard scope.] Task 3 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, 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. 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 Supports 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. ATTACHMENT "A" Page 11 of 19 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. 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 ATTACHMENT 'A" Page 12 of 19 Flour (04) from HMS at the nearby junction point I RAS Input way 2: Q5= Qd+dQ=Qm 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). Flow (Q1) from HMS at f the closest junction Hydrologic •i Junction RAS input way 1 Q2=Q1+113"dQ dQ is the net added flow from each flow -through subbasin with areal reduction Qm=total peakdischarge at the outlet of the subbasin 1 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. ATTACHMENT "A" Page 13 of 19 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, 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 project unique activities particular to study that are beyond the standard scope.] Task 4 Deliverables: • Documentation ATTACHMENT A Page 14 of 19 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 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 project unique activities particular to study that are beyond the standard scope.] Task 5 Deliverables: • Documentation ATTACHMENT "A" Page 15 of 19 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 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.] 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 project unique activities particular to study that are beyond the standard scope.] ATTACHMENT "A" Page 16 of 19 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) 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 ATTACHMENT "A" Page 17 of 19 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 project 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 project 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 project. Task 7 Deliverables: • Documentation o Upon completion of the project, the ENGINEER shall submit signed digital and hard copies of the QA/QC checklists. Task 8• Letter of Map Revision Application and Support 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 ATTACHMENT "A" Page 18 of 19 o Digital copy of the completed LOMR application package PROJECT Schedule The project (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) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 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 U oaoi b uat..•u=nuiafini d1' Report Correspondence Data_Collected Figures Misc Photos Tables 02 Survey Field_Notes Photos Spatial Data Text_Files 03 Models Hydrauhc_Models Hydrology Models _Spatial_Data Hydraulic Hydrology Profiles Flood Maps a 0la04 EXHIBIT "A-1" Page 3 of 3 a o5 06 EXHIBIT "A-2" (SUPPLEMENT TO ATTACHMENT A) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 OPEN CHANNEL STUDY REPORT FORMAT Table of Contents Task 1: Project Management • Summary of Tasks • Support Data • Project Certification and Decision Log. Task 29 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 3a Development of Detailed Hydrologic Models • Task Summary o Introduction o Performance Work Statement o LOMC Incorporation • Methodology o Detailed Summary • 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 El 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 4 of 5 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 ATTACHMENT "B" LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 COMPENSATION AND PAYMENT SCHEDULE I. Compensation A. The Engineer shall be compensated a total lump sum fee of $156,595. 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". 11. 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 266 calendar days after the "Notice to Proceed" letter is issued. A. A concept report reflecting the data collection (Task 2) will be submitted within 70 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 112 calendar days after the submittal of the concept report. C. A final report will be submitted 84 calendar days after the submittal of the preliminary report. ATTACHMENT "B" Page 1 of 1 EXHIBIT "B-1' (SUPPLEMENT TO ATTACHMENT B) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 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 estimated current percent complete of the total project. The budget does not include revisions to the scope of work after the NTP. If revisions are requested by the City, a revision of scope and budget will be required. P artial payment shall be made to the Engineer monthly, the aggregate of such monthly partial fee payments shall not exceed the following: U ntil delivery of the concept report, a sum not to exceed 50 percent of the total lump sum fee. U ntil delivery of the preliminary report, a sum not to exceed 70 percent of the total lump sum fee. U ntil delivery of the final report as defined in Attachment C-1, a sum not to exceed 90 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. 11. 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" (SUPPLEMENT TO ATTACHMENT B) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 HOURLY RATE SHEDULES A summary of current hourly billing rates is provided below: P rincipal -in -Charge $184 — $229 P roject Manager $159 — $205 S enior Professional Engineer $120 — $208 Junior Professional Engineer $100 — $167 Engineer -in -Training $87 - $103 Senior GIS $82 — $86 Junior GIS $68 — $83 Engineering Intern $45 — $65 CADD Technician $86 — $97 Clerical $37 — $89 EXHIBIT B-2" Page 1 of 1 EXHIBIT "B-3" (SUPPLEMENT TO ATTACHMENT B) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 PROFESSIONAL SERVICES FEE SUMMARY TASK Task 1: Project Management Task 2: Data Search, Collection Field Reconnaissance, Stream Condition Assessment, Task 2: Field Surveys of Hydraulic Structures Task 2: Finished Floor Elevations Task 30 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) Task 7: Quality Assurance and Quality Control P rocedures Task 8: Letter of Map Revision Application and S upport S ERVICE TOTAL FEE $11,400 $15,620 $21,200 $5,100 $32,080 $41,275 $3,885 $17,245 $8,790 $0 $156,595 EXHIBIT "B-3" Page 1 of 1 Consulting Firm EXHIBIT "B-3A" (SUPPLEMENT TO ATTACHMENT B) LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 SUMMARY OF TOTAL PROJECT FEES Prime Responsibility PRIME ENGINEER* Halff Associates Engineering & Project Management SUB ENGINEER ANA Consultants It a Field Survey Finished Floor Elevations • dill uum mill I lu uuuoo Li L. 11,4I uuuool+1i pumI ;01 Amount $130,295 $21,200 $5,100 Percent 83.2% 13.5% 3.3% Project Description Scope of Services Total Fee MWWBE Fee ANA Consultants (See Below) $156,595 $26,300 Percent 16.8% SUB ENGINEER. shall participate in performing portions of the following Tasks as outlined in Attachment "A" Task 2.d. Field Surveys Task 3.e. Finished Floor Elevations Non-MWBE Participation None 0% EXHIBIT "B-3A" Page 1 of 1 ATTACHMENT "C" LUDELLE CREEK MASTER PLAN AMENDMENTS TO STANDARD AGREEMENT FOR ENGINEERING SERVICES STUDY NO. SWS-029 1. Amendments to the Standard Agreement for Engineering Services NONE ATTACHMENT "C" Page 1 of 1 ATTACHMENT "C-1" LUDELLE CREEK MASTER PLAN STUDY NO. SWS-029 AMENDMENTS TO THE STANDARD SCOPE OF SERVICES, ATTACHMENT "A" Amendments/Clarifications to the Scope of Services — Attachment A. The following amends or clarifies the standard Scope of Services: 1. Task 1: Project Management A. The ENGINEER shall attend one public meeting to present what possible mitigation alternatives are being explored. I1. Task 2- Data Search, Collection, Field Reconnaissance, Stream Condition Assessment, and Surveys A. The ENGINEER shall provide scoping for any recommended minor projects, such as localized erosion repair along Ludelle Creek. B The ENGINEER shall survey three open channel section per mile and a total of five (5) hydraulic structures. Crossing Name Woodrow Street Beach Street Connor Street Ludelle Street Collard Street Type Culvert Culvert Culvert Culvert Culvert Survey Name LUD-CUL-01 LUD-CUL-02 LUD-CUL-03 LUD-CUL 04 LUD-CUL-05 III. Task 3: Development of Hydrologic Models N ONE IV. Task 4• Development of Hydraulic Models and Floodplain Maps N ONE V. Task 5: Watershed Flood Hazard Assessment N ONE VI. Task 6: Proposed Flood Mitigation Alternative Analysis A. The ENGINEER shall consider up to three (3) alternatives for the master plan of improvements. ATTACHMENT ' C-1" Page 1 of 2 VII. Task 7: Quality Assurance and Quality Control Procedures NONE VIII. Task 84 Letter of Map Revision Application and Support A. Submission of a LOMR to FEMA reflecting map modifications based on the proposed study of existing conditions will be prepared only if it is determined by the ENGINEER and the CITY that changes in the water surface elevations and/or floodplain limits are significant enough to require a LOMR. A separate scope and fee proposal will be provided if a LOMR is required for Ludelle Creek. ATTACHMENT C-1" Page 2 of 2 ID Task Name o Ludelle Creek Master Plan 266 days 1 Notice to Proceed' 0 days 2 Kick -Off Meeting 7 days 3 Task 1: Project Management 259 days 4 Task 2: Data Collection 63 days 5 a. Dataset Research and Collection 42 days 6 b. Field Reconnaissance 21 days 7 c. Stream Condition Assessment 21 days 8 d. Field Survey 28 days 9 e. Finished Floor Elevations** 14 days 10 Task 3: Hydrology 56 days 11 Task 4: Hydraulics 56 days 12 Task 5: Flow Hazard Assessment 14 days 13 Task 6: Flood Mitigation Alternatives 56 days 14 Task 7: QA/QC 196 days 15 Report 84 days Ludelle Creek Master Plan Wed 7/8/09 Attachment "D" Project Schedule Ludelle Creek Master Plan (SWS 029) Duration Start Finish IJan'10 IFeb'10 IMar'10 IApr'10 jMav'10 IJun'10 IJut'10 Aua'10 (Sep '10 IOct'10 2012713110117124131 17114121128171141212814 (11118251219 11612313016113 20 27I 4 1118125 1 18 11512212915 I1211922613 110117124 Mon 1/4/10 Sun 9/26/10 Iy ^^" did him Mon 1/4/10 Mon 1/4/10 411/4 Mon 1/4/10 Sun 1/10/10 1/4 Mon 1/11/10 Sun 9/26/10 Mon 1/11/10 Sun 3/14/10 Mon 1/11/10 Sun 2/21/10 Mon 1/11/10 Sun 1/31/10 Mon 1/11/10 Sun 1/31/10 Mon 2/1/10 Sun 2/28/10 Mon 3/1/10 Sun 3/14/10 Mon 3/15/10 Sun 5/9/10 Mon 5/10/10 Sun 7/4/10 Mon 7/5/10 Sun 7/18/10 Mon 7/19/10 Sun 9/12/10 Mon 3/1/10 Sun 9/12/10 Mon 7/5/10 Sun 9/26/10 Task Milestone Split Summary 11111111111111111 Progress ® Project Summary • Schedule is contingent on January 4, 2010 Notice to Proceed. Schedule will be adjusted based on actual NTP datePage 1 "If necessary, additional finished floor elevations may be obtained upon completion of Task 5: Flow Hazard Assessment. External Tasks External Milestone Deadline ; Al 'It 0Wl''-.�) ' G • r Alf ., •'w4=1`AVENUE D'_s • AV,ENU•E+A MIDLAND • ^YOUN M`-LEAN AU E_N� • I,4,,.. car `.t� '�,�, HIRE^ • NI 'WN. EI N AVENUE;C APr ram, ;, -r; ,AV EN UE D, • AVENUE'S LEGEND Proposed Survey Locations t® Structure Survey ill Low Water Crossing Channel Section Survey Finished Floor Elevations Hydraulic Sections ATTACHMENT "E" = Location Mip Ludelle Creek (SC-1) Open Channe study Study No. SWS-029 1,000 500 0 1 inch = 1,000 feet 1,000 Feet HALFF August 10, 2009 AVO 1008=0806175 Mr. Mark Assaad, P.E. Vice President ANA Consultants, LLC 1701 River Run, Suite 610 Fort Worth, TX 76107 Re: Ludelle Creek (FEMA SWWS 4) liftngttr flw» o City .1 F W,nsh Study No. SWS-029 Mark: Halff Associates, Inc. intends to contract with ANA Consultants, LLC, for MWBE SERVICES on the subject City of Fort Worth project. Halff Associates, Inc. intends to contract $26,300 to your firm for Finished Floor Elevation and Field Surveys during the course of the project. Please acknowledge this commitment by signing below and returning an original to me. Sincerely, HALFF ASSOCIATES, INC. Ter M. Barr, P.E., CFM Project Manager _ -e 0 gi/HA MAssaad+ biJe1 it Date( ( r ANA Consu ants, LLC HALFF ASSOCIATES, INC. 4000 FOSSIL CREEK 8 LVD TEL (817) 6 47-1422 WW W.HALF FUN FORT WORTH, TX 76137 FAX (817) 232- 9784 The Financial Management Services Director certifies that upon approval of the above recommendations and adoption of the attached supplemental appropriation ordinance, funds will be available in the current operating budget, as appropriated of the Stormwater Utility Fund. Upon approval the unreserved, undesignated cash balance of the Stormwater Utility Fund will exceed the minimum reserve as outlined in the Financial Management Policy Statements. FUND CENTERS: TO Fund/Account/Centers 1) PE69 531200 0209202 FROM Fund/Account/Centers $156.595.00 21 PE69 531200 0209202 $156.595.00 CERTIFICATIONS: Submitted for City Manager's Office by: Oriainatina Department Head: Additional Information Contact: Fernando Costa (6122) William Verkest (7801) Steve Eubanks (7857) ATTACHMENTS 1. 20SWMLUDELLECHANNELPLA AO.doc (Public) 2. fundinaverifcation.odf (CFW Internal) 3. SWS-029 Ludelle Mao.odf (Public) 4. SWS-029 Ludelle MWBE Comoliance.pdf (CFW Internal) Logname: 20SWMLUDELLECHANNELPLAN Page 2 of 2