Small and Medium Sized Water and Wastewater Main Designs in Various Locations within the City of Dallas

The City of Dallas Water Utilities Department is requesting qualifications for engineering design services on small- and medium-sized water and wastewater main renewal projects throughout Dallas, with an RFQ due September 18, 2026 and qualification document uploads continuing through July 31, 2026.

The scope encompasses design and survey of approximately 180,000 total linear feet of water and wastewater mains: 90,000 linear feet of 8-inch to 12-inch diameter water mains and 90,000 linear feet of 8-inch to 24-inch diameter wastewater mains. Services include preliminary investigations and design reports, topographic and geotechnical surveys, environmental evaluations, easement documentation, final design drawings, specifications, and cost estimates. All design must be completed within two years of contract execution. Deliverables must be prepared in Bentley MicroStation CADD format (DGN files) with State Plane Coordinate System, Texas North Central Zone 4202 (NAD 1983) referenced to minimum 3-centimeter horizontal accuracy, and submitted on password-protected USB drives. Preliminary investigation reports are limited to 10 pages each with tabular data in Excel format. The consultant must comply with Dallas Water Utilities Design Standards, drafting standards, and bid item manuals. Construction documents must meet Texas Water Development Board (TWDB) Drinking Water and Clean Water State Revolving Fund program requirements. Optional hydraulic modeling services using InfoWorks ICM software are available for qualified consultants.

Coordination is required with the EPA, FEMA, Army Corps of Engineers, TCEQ, TxDOT, DART, and the City of Dallas Department of Public Works. The consultant must access existing DWU data through the DWU Kiosk at 2121 Main Street, 5th Floor, Dallas, Texas 75201. Permit fees are paid by Dallas Water Utilities unless the Project Manager directs otherwise. A Project Partnering Session is required approximately one to two months after contractor selection. Brian Mesiti, P.E., is the Project Manager.