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Home My WebLink AboutContract 56604-A1 CSC No. 56604-A1 AMENDMENT No.1 TO CITY SECRETARY CONTRACT No. 56604 WHEREAS, the City of Fort Worth (CITY) and Pape-Dawson Engineers, Inc. , (ENGINEER) made and entered into City Secretary Contract No. 56604, (the CONTRACT) which was authorized by M&C on the loth day of August, 2021 in the amount of $ 380, 665. 00; and WHEREAS, the CONTRACT involves engineering services for the following project: FLOOD RISK MAP UPDATE, CPN 103487; and WHEREAS, it has become necessary to execute Amendment No. 01 to the CONTRACT to include an increased scope of work and revised fee. NOW THEREFORE, CITY and ENGINEER, acting herein by and through their duly authorized representatives, enter into the following agreement, which amends the CONTRACT: 1 . Article I of the CONTRACT is amended to include the additional engineering services specified in proposal attached hereto and incorporated herein. The cost to City for the additional design services to be performed by Engineer totals $49, 080. 00. (See Attached Funding Breakdown Sheet, Page -4-) 2 . Article II of the CONTRACT is amended to provide for an increase in the fee to be paid to Engineer for all work and services performed under the Contract, as amended, so that the total fee paid by the City for all work and services shall be an amount of $429, 745. 00. 3. All other provisions of the Contract, which are not expressly amended herein, shall remain in full force and effect . OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX City of Fort Worth, Texas Flood Risk Map Update Prof Services Agreement Amendment Template CPN: 103487 Revision Date: November 23, 2021 Page 1 of 4 EXECUTED and EFFECTIVE as of the date subscribed by the City' s designated Assistant City Manager. APPROVED: City of Fort Worth ENGINEER PAPE-DAWSON ENGINEERS, INC. GJ� &6--4-6r- Williamjohnson(Nov ,202213:26CST) Cara Tackett(Oct 21,2022 00:41 CDT) William Johnson Cara C. Tackett Assistant City Manager Managing Principal, WR DATE: Nov 8, 2022 DATE: Oct 21, 2022 APPROVAL RECOMMENDED: Lauren Prieur Interim Director, Transportation & Public Works Department Contract Compliance Manager: By signing, I acknowledge that I am the person responsible for the monitoring and administration of this contract, including ensuring all performance and reporting requirements . Clair C. Davis Project Manager City of Fort Worth, Texas Flood Risk Map Update Prof Services Agreement Amendment Template CPN: 103487 Revision Date: November 23, 2021 Page 2 of 4 APPROVED AS TO FORM AND LEGALITY: M&C: 8911� Date: Nov 8, 2022 Dglack(Nbv 8,2022 07:52 CST) Douglas W. Black Sr. Assistant City Attorney gaovbnn�� pd ATTEST: oo p ogo Pvo o d�a*c000 ooc p�d �a�uzslfe-S. �oor7a�G aa��EopSapp Jannette S.Goodall(Nov 9,202211:58 CST) Jannette Goodall City Secretary OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX City of Fort Worth, Texas Flood Risk Map Update Prof Services Agreement Amendment Template CPN: 103487 Revision Date: November 23, 2021 Page 3 of 4 FUNDING BREAEMOWN SHEET City Secretary No. 56604 Amendment No. 01 Department Fund-Account-Center Amount TPW 52002-0200431-5330500-103487-002830-9999 $49, 080 . 00 Total : City of Fort Worth, Texas Flood Risk Map Update Prof Services Agreement Amendment Template CPN: 103487 Revision Date: November 23, 2021 Page 4 of 4 i PAPE-DAWSON rENGINEERS September 29, 2022 (Revised October 7, 2022) (Revised November 4, 2022) Mr. Clair Davis—Floodplain Administrator clair.davis@fortwortheov.ors City of Fort Worth 200 Texas St. Fort Worth,TX 76102-6314 Re: City of Fort Worth—Flood Risk Map Update (CPN 103487) Job No. 70191-00 Amendment No. 1 Dear Mr. Davis: This letter is to request funding for additional services for the modeling and mapping of the 1-year Potential High Water Warning Area (PHWA) and forensic analysis of the flooding that occurred during the August 21-22, 2022 storm event at the Lake of the River Trails neighborhood. These services are considered above and beyond previously authorized work and include the following: I. CITYWIDE 1-YR PHWA MODELING AND MAPPING [TASK 294] $24,460 Update citywide 100-yr PHWA model created by Pape-Dawson for the 1-year storm event. • Perform preliminary citywide 1-year modeling runs using 1-year precipitation information. • Check and update boundary conditions outside FEMA mapped zones for the 1-year and 5-year preliminary runs. • Combine mapping from multiple model runs in to one seamless mapping for the l- and 5-year mapping. Perform cleanup of orphans and isolated polygons. • Prepare combined database of 1-, 5-, and 100-year mapping for citywide PHWA to submit to the City as a deliverable. II. FORENSIC ANALYSIS& MITIGATION [TASK 295] $24,620 Perform post storm forensic analysis at the Lake of the River Trails neighborhood for the August 21-22, 2022 storm event that caused severe flooding. Use of the citywide PHWA model prepared by Pape-Dawson is anticipated in performing this analysis: • Collect available gauge data at City precipitation gauges for the August 21-22, 2022 storm event. Collect time-stamped and geolocatable pictures and videos of flooding in the Lake of the River Trails neighborhood. • Incorporate collected rain gauge data in to the PHWA model and perform modeling of the Calloway Branch and Walker Branch watersheds encompassing the Lake of the River Trails neighborhood and associated HOA pond. Determine root cause of flooding and corroborate with pictures or videos, if any. Transportation I Water Resources I Land Development I Surveying I Environmental telephone: 214-420-8494 address: 5810 TENNYSON PARKWAY, SUITE 425 PLANO,TX 75024 website: PAPE-DAWSON.COM Dallas I San Antonio I Austin I Houston I Fort Worth I New Braunfels I Corpus Christi Texas Engineering Firm#470 Texas Surveying Firm#10194390 Mr.Clair Davis City of Fort Worth—Flood Risk Map Update(CPN 103487) ASR#1(70191-00)—Amendment No.1 September 29,2022(Rev.October 7,2022)(Rev.November 4,2022) Page 2 of 2 • Identify up to two (2) mitigation alternatives to prevent future flooding in a storm similar to the August 21-22, 2022 event. • Perform one (1) meeting with the City to discuss storm conditions analysis and the two mitigation alternatives. • Prepare technical memo with alternatives and Association for the Advancement of Cost Engineering(AACE) Class 4 OPCC as a deliverable. SCHEDULE TASK NAME COMPLETION TIMEFRAME FROM NTP I. Citywide 1-Year PHWA Mapping and Modeling 6 WEEKS II. Forensic Analysis& Mitigation Draft Memo 3-4 WEEKS Final Memo 8 WEEKS Anticipated design schedule duration is 8 weeks from notice to proceed (NTP), based on a two-week review time of each deliverable and two-week revision time. SUMMARY OF SCOPE AND FEES I. Citywide 1-Year PHWA Mapping and Modeling $ 24,460.00 II. Forensic Analysis& Mitigation $ 24,620.00 Total: $ 49,080.00 A budget increase of$49,080.00 is the estimated cost of Pape-Dawson's current understanding of the additional services identified above. We appreciate the opportunity to work with you on this project. If you have any questions or need additional information, please do not hesitate to contact me at your earliest convenience. Sincerely, Pape-Dawson Engineers, Inc. Zubin Sukheswalla,P.E., CFM Managing Vice President, H&H 0:\Marketing\Proposals\Letters\2022\09\220928a1(P4026-22)R2 ASR1 DAL 70191-OO.docx rdPAPE-DAWSON ENGINEERS