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HomeMy WebLinkAboutResolution - 2018-R0420 - Amendment 4 Stormwater Master Plan - Halff And Associates - 12/06/2018Resolution No. 2018-RO420 Item No. 6.7 December 6, 2018 RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the Mayor of the City of Lubbock is hereby authorized and directed to execute for and on behalf of the City of Lubbock, Amendment 4 for Contract No. 12113 for Design Services related to Capital Improvements Project studies performed as part of the City of Lubbock Stormwater Master Plan, by and between the City of Lubbock and Halff Associates, Inc., of Richardson, Texas, and related documents. Said Contract is attached hereto and incorporated in this resolution as if fully set forth herein and shall be included in the minutes of the City Council. Passed by the City Council on December 6, 2018 DANIEL M. POPE, MA OR a T: Rebecca Garza, Ci y Secretary APPROVED AS TO CO Assistant City Manager APPROVED AS TO FORM: elli Leisure, Assistant City Attorney ccdocs/RES.PSA Amendment 4.Contract 12113.Design Services 10,31.18 Resolution No. 2018-RO420 FOURTH AMENDMENT TPOPROFESSIONAL SERVICES CONTRACT NO.12113 BETWEEN THE CITY OF LUBBOCK AND HALFF ASSOCIATES, INC. This Fourth Amendment (the "Amendment") to the Professional Services Contract (the "Contract") is by and between the City of Lubbock, a Texas municipal corporation (the "City"), and Halff Associates, Inc., a Texas corporation (the "Engineer"). WITNESSETH: WHEREAS, prior amendments to professional services Contract number 12113 incorporated exhibits through "Exhibit 134" and terminated the agreement as of September 30, 2019. WHEREAS, the City has determined the need for additional design services which are to be performed by the Engineer as part of the City of Lubbock's Stormwater Master Plan. NOW, THEREFORE, the City and Engineer agree to the following terms in this FOURTH AMENDMENT: 1. The attachment to this Amendment entitled "Exhibit D5" is incorporated herein to the Contract as "Exhibit 135". 2. Additional time is granted to complete the tasks as described in "Exhibit D5" and the Contract terminates at the close of business on September 30, 2020, unless a mutual agreement in writing is made by the City and the Engineer to further extend the term. 3. This Amendment shall become effective upon execution by the parties, and the remainder of the Contract shall remain in full force and effect except as changed herein. THIS THIRD AMENDMENT IS EFFECTIVE ON THIS 6th DAY OF December 2018. For CITY OF LUBBOCK: For HALFF ASSOCIATES, INC.: Daniel M. Pope, MW Erin Atkinson, PE, CFM, GISP, Vice President a : Rebecca Garza, Cky Secretary Page 1 of 2 APPROVED AS TO CONTENT: Michael Keenum, P.E., Division Director of Engineering/City Engineer Engineer/Capital Projects and Design PPROVED AS TO FORM: K Ili Leisure, Assistant City Attorney Page 2 of 2 Exhibit "DS" City of Lubbock Stormwater Master Plan Task Order #5 This Task Order is made as of , 2018, under the terms and conditions established in the PROFESSIONAL SERVICES CONTRACT (Task Order Basis) between the City of Lubbock, Texas (CITY) and Halff Associates, Inc. (ENGINEER), dated _April 9, 2015_ (the Agreement). This Task Order is made for the following purpose, consistent with the Project defined in the Agreement: Task Order 5 will provide professional services related to updating Master Drainage Plans for playa basins as part of the City of Lubbock Stormwater Master Plan. The consultant will coordinate with the City to determine the playa basins that will receive updated Master Drainage Plans. Section A. - Scope of Services ENGINEER shall perform the following Services: 1. MASTER DRAINAGE PLAN UPDATES Master Drainage Plan Updates were initiated and conducted as part of Task Order 3. Task Order 5 will continue the MDP updated process for additional playa basins. The MDP update process used for Task Order 3 will be continued and the updates will focus on developing areas of the City and locations of future annexation. 1.1 Prioritize Playa Systems This task will rank each playa sub -system based on current and predicted growth. The prioritized list will be presented to the City to determine which systems will receive an MDP update. 1.2 Perform 2D Modeling Hydrologic and hydraulic modeling will be performed on the prioritized playa sub -systems using software capable of 2D modeling analysis. The playa systems will be modeled based on assumed future fully developed conditions based on City planned land use and typical development patterns. The objectives of modeling will be to identify expected stormwater runoff volumes and the impacts of runoff to the major thoroughfare crossings. 1.3 Develop MDP Mapping The datasets used to develop the MDP models will be stored in a standardized GIS database for use by the development community and other stakeholders. Additionally, the results of the hydraulic modeling will be used to develop inundation areas and expected flowpaths of the stormwater runoff. Page 1 of 3 1.4 Document MDP Final Report The assumptions, model parameters, and results for each playa system will be documented in a MDP Final Report. Section B. - Schedule Perform the Services and deliver the identified tasks according to the following schedule: The schedule of services performed will be completed within 12 months of task order notice to proceed. Section C. - Compensation In return for the performance of the foregoing obligations, City agrees to pay to ENGINEER the amount of $ _250,000_ , payable in accordance with the Professional Services Contract (Task Order Basis) and this Task Order #_5_. Task/Description Estimated Budget 1. Master Drainage Plan Updates 1.1. Prioritize Playa Systems $250,000 1.2. Perform 2D Modeling 1.3. Develop MDP Mapping 1.4. Document MDP Final Report Total Estimated Fee $250,000 Page 2 of 3 Section D. - City's Responsibilities In addition to the list of activities contained in Exhibit "C" of the Professional Services Contract (Task Order Basis), the City shall perform and/or provide the following: No additional activities to Exhibit C are required for Task Order #5. This task order does not waive the parties' responsibilities and obligations provided under the PROFESSIONAL SERVICES CONTRACT (Task Order Basis) between City and ENGINEER. IN WITNESS WHEREOF, City and ENGINEER have executed this Task Order. City of Lubbock, Texas (City) Halff Associates, Inc. (ENGINEER) /- -- SignatureZ- - Signature Name John Turpin, PE Title Assistant City Engineer of Capital Projects and Design Date �. c, C 7,616 Name Erin Atkinson. PE. CFM. GISP Title Vice President Date /0 - L Z - / TV Page 3 of 3