STRATEGIC PRIORITY: Mobility Solutions, Infrastructure, and Sustainability
AGENDA DATE: September 23, 2020
COUNCIL DISTRICT(S):|910|DEPARTMENT: Water Utilities Department
EXECUTIVE: Majed Al-Ghafry
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SUBJECT
Title
Authorize a construction contract for the installation of water and wastewater mains associated with the Lower East Bank Wastewater Main Interceptor Project - Thalle Construction Co., Inc., lowest responsible bidder of three - Not to exceed $30,393,551.50 - Financing: Water Capital Improvement E Fund ($911,806.50) and Wastewater Capital Improvement D Fund ($29,481,745)
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BACKGROUND
Dallas Water Utilities (DWU) has an existing 78 to 90-inch diameter wastewater interceptor that runs north and south between Woodall Rodgers Freeway and Stemmons Freeway, generally east of Dragon Street and along Market Center Boulevard. The existing interceptor was built in the 1940's and has been determined by internal assessments to be in very poor condition. In addition, the existing main is located under several existing structures and future proposed buildings and has been identified for upsizing in master planning efforts.
DWU has completed engineering efforts to replace the existing interceptor in a new alignment roughly along and parallel to Riverfront Boulevard/Market Center Boulevard from Woodall Rodgers Freeway north to Stemmons Freeway Service Road. This action will authorize a construction contract with Thalle Construction Co., Inc. for the replacement and upsizing of the existing 78 to 90-inch diameter wastewater interceptor and adjacent pipelines in need of replacement. The contract will consist of the replacement and rehabilitation of approximately 15,385 feet of water and wastewater mains. This includes the installation of approximately 10 feet of 6-inch, 20 feet of 8-inch, 1,080 feet of 12-inch, 10 feet of 16-inch, and 250 feet of 30-inch water mains, and approximately 2,390...
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