STRATEGIC PRIORITY: Transportation & Infrastructure
AGENDA DATE: August 10, 2022
COUNCIL DISTRICT(S): 2, 7, 14
DEPARTMENT: Water Utilities Department
EXECUTIVE: Kimberly Bizor Tolbert
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SUBJECT
Title
Authorize Supplemental Agreement No. 8 to the professional services contract with Halff Associates, Inc. for additional engineering and construction phase services associated with the Mill Creek, Peaks Branch, and State-Thomas Drainage Relief Tunnel - Not to exceed $2,449,000.00, from $24,058,488.00 to $26,507,488.00 - Financing: Flood Protection and Storm Drainage Facilities Fund (2006 General Obligation Bond Funds)
Body
BACKGROUND
The 2006 and 2012 Bond Programs provided funding for design and construction of storm drainage relief improvements for the Mill Creek / Peaks Branch / State-Thomas watersheds. The improvements include a deep underground storm drainage tunnel that will provide flooding relief to the lower areas of the Mill Creek watershed (around Baylor Hospital), Peaks Branch watershed (south of Buckner Park), and East Peaks Branch watershed (around Fair Park area). It will also provide drainage relief to the State-Thomas area near Woodall Rodgers.
On June 13, 2007, City Council authorized a professional services contract with Halff Associates, Inc., for the design of drainage relief improvements to reduce flooding in the lower portions of the Mill Creek and Middle Peaks Branch watersheds and a construction contract was awarded by City Council on February 14, 2018. The drainage relief project consists of approximately five miles of thirty-foot and thirty-five-foot diameter storm drainage tunnel that is between seventy-five and one hundred fifty feet deep. The project also includes an outfall structure near White Rock Creek, five intake shafts that will connect to existing storm drainage systems and collect overland floodwaters during heavy rain events, and associated street and su...
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