PILLAR: Sustainable
AGENDA DATE: October 14, 2026
COUNCIL DISTRICT(S): 2, 7, 14
DEPARTMENT: Dallas Water Utilities Department
PRIORITY: Infrastructure
______________________________________________________________________
SUBJECT
Title
Authorize Supplemental Agreement No. 3 to the professional services contract with Black & Veatch Corporation for additional construction management services associated with the Mill Creek/Peaks Branch/State-Thomas Drainage Relief Tunnel Project - Not to exceed $5,555,000.00, from $32,301,000.00 to $37,856,000.00 - Financing: Flood Protection and Storm Drainage Facilities Fund (2006 General Obligation Bond Fund)
*In alignment with Capital Improvement Program.
Body
BACKGROUND
On June 15, 2016, the City Council authorized a professional services contract with Black & Veatch Corporation for support services associated with construction document updates and construction management services for the Mill Creek/Peaks Branch/State-Thomas Drainage Relief Tunnel Project. The project was awarded for construction on February 14, 2018, and is currently under construction with an anticipated completion in early 2029. This project includes a deep underground storm drainage tunnel that will provide drainage and flooding relief to the lower areas of the Mill Creek watershed (around Baylor Hospital), Peaks Branch watershed (south of Buckner Park), East Peaks Branch watershed (around Fair Park area), and the Woodall Rodgers and State-Thomas area.
The drainage relief project consists of approximately five miles of 30 and 35-foot diameter storm drainage tunnel that is between 75 and 150 feet deep. It also includes an outfall structure near White Rock Creek and five intake shafts that will connect to existing storm drainage systems and collect overland floodwaters during heavy rain events as well as street and surface drainage improvements at the intake and outfall sites. Construction of the tunnel utilized a boring machine and includes concrete fo...
Click here for full text