PILLAR: Sustainable
AGENDA DATE: September 23, 2026
COUNCIL DISTRICT(S): 2, 6
DEPARTMENT: Dallas Water Utilities Department
PRIORITY: Infrastructure
______________________________________________________________________
SUBJECT
Title
Authorize a professional services contract with T. M. Kilduff Consulting, Inc. dba Kilduff Underground Engineering to provide engineering services associated with the East Bank Interceptor Project - Not to exceed $3,487,729.00 - Financing: Wastewater Capital Improvement G Fund ($3,000,000.00) and Wastewater Capital Improvement F Fund ($487,729.00)
*In alignment with Water and Wastewater Capital Improvement Program.
Body
BACKGROUND
On February 26, 2014, the City Council authorized a professional services contract with RPS Espey that included structural analysis, risk assessment, emergency action plan preparation, and evaluation of rehabilitation or replacement options for several wastewater interceptors in the Interstate Highway (IH) 30 and IH 35E downtown area.
After award of the contract, RPS Espey was acquired by Tetra Tech. Due to the pipe rehabilitation and trenchless technology specialty needed, Tetra Tech engaged the services of Kilduff Underground Engineering, Inc. (KUE). KUE’s evaluation of the 90-inch East Bank Horseshoe lnterceptor concluded that the existing wastewater interceptor is deteriorated throughout and rehabilitation would present significant access challenges and risk with a low confidence of accomplishing the repair objectives. There is less risk in constructing a new parallel sewer via tunneling than rehabilitating the existing sewer and a detailed evaluation of the potential alignment and ancillary structures is needed to move the project forward.
Since the existing East Bank Interceptor is already seen to have deteriorated at multiple locations, further delays in the design and construction of a replacement for the existing interceptor will exacerbate the risk of continued pipe deterioration, pipe collapse, and loss of wastewater operation and service to most of downtown Dallas. Therefore, for the next phase of the project, Dallas Water Utilities has engaged KUE to provide a scope of work and fee proposal for engineering services.
The professional services scope will include completing a site investigation, alignment study, preliminary design report for the selected alignments, geotechnical investigations, tunnel feasibility report, and 30 percent design level construction plans and specifications for a new 120-inch diameter interceptor to act as a replacement of the existing East Bank Horseshoe Interceptor. The additional services will ensure that a constructable tunnel alignment is selected based on ground conditions, site constraints, and project stakeholder impacts.
KUE is highly qualified to provide engineering services associated with the next phase of the East Bank Interceptor Project due to their long-time engagement on the East Bank Interceptor project, specialized expertise with tunneling, as well as their extensive work on the Lower East Bank Interceptor directly upstream. This experience and familiarity with the project provide them with an unmatched, comprehensive knowledge of the necessary improvements associated with this project. This action will authorize a professional services contract with T. M. Kilduff Consulting, Inc. dba Kilduff Underground Engineering to provide engineering services associated with the East Bank Interceptor Project.
ESTIMATED SCHEDULE OF PROJECT
Begin Services November 2026
Complete Services December 2028
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
Information about this item was provided to the Transportation and Infrastructure Committee on September 14, 2026.
FISCAL INFORMATION
|
Fund |
FY 2026 |
FY 2027 |
Future Years |
|
Wastewater Capital Improvement G Fund |
$3,000,000.00 |
$0.00 |
$0.00 |
|
Wastewater Capital Improvement F Fund |
$ 487,729.00 |
$0.00 |
$0.00 |
|
Total |
$3,487,729.00 |
$0.00 |
$0.00 |
Council District Amount
2 $1,997,084.58
6 $1,490,644.42
Total $3,487,729.00
OWNER/EXECUTIVE
T. M. Kilduff Consulting, Inc. dba Kilduff Underground Engineering
Todd Kilduff, PE, President
MAP
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