STRATEGIC PRIORITY: Sustainable
AGENDA DATE: September 24, 2025
COUNCIL DISTRICT(S): 12
DEPARTMENT: Dallas Water Utilities Department
EXECUTIVE: Dev Rastogi
______________________________________________________________________
SUBJECT
Title
Authorize a professional services contract with Binkley & Barfield, Inc. to provide engineering services for an alignment study, preliminary design, and survey for water transmission main improvements within the Meandering Way High Pressure Plane - Not to exceed $1,499,913.00 - Financing: Water Capital Improvement F Fund
Body
BACKGROUND
The two alignment options to be modeled and evaluated include a new 36-inch diameter water transmission main along the George Bush Turnpike from the Dallas North Tollway to the Highland Elevated Storage Tank at 7211 Frankford Road and the replacement of an existing 24-inch diameter water transmission main with a new 36-inch diameter water main along Frankford Road. The Frankford Road alignment was included as an alternative alignment in master planning efforts in the event easement acquisition and constructability for the George Bush alignment is not feasible and cost prohibitive.
Although hydraulic modeling indicates that the project is not required under normal conditions until approximately 2030 or later, pressure modeling shows that if the Parkway Pump Station is offline, system pressures can drop as low as 14 pounds per square inch (PSI) under current maximum day demand, which is below the Texas Commission on Environmental Quality minimum requirement of 35 psi. Expediting this project will mitigate the risk of low-pressure events if the Parkway Pump Station is out of service, reduce high velocities near the Highland Elevated Storage Tank, and provide additional redundancy to the water transmission system.
This action will authorize a professional services contract with Binkley & Barfield, Inc., for an alignment study, preliminary design, and survey of approximately 17,500 feet of water transmission main improvements. The proposed pipeline improvements were recommended in the Comprehensive Water Delivery System Master Plan to mitigate lower pressures in the western portion of the Meandering Way High Pressure Plane. Two potential alignments were recommended in the master plan to be evaluated and will be studied under this engineering contract. After an alignment is recommended and approved, final design and engineering services will be completed. It is anticipated that a future supplemental agreement will be brought to council after completion of preliminary engineering.
The consulting firm for this project was selected following a qualifications-based selection process in accordance with City of Dallas Administrative Directive 4-05 procurement guidelines.
ESTIMATED SCHEDULE OF PROJECT
Begin Services October 2025
Complete Services October 2027
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
This item has no prior action.
FISCAL INFORMATION
|
Fund |
FY 2025 |
FY 2026 |
Future Years |
|
Water Capital Improvement F Fund |
$1,499,913.00 |
$0.00 |
$0.00 |
LOCAL PARTICIPATION
|
Prime |
Status |
Workforce % |
|
Binkley & Barfield, Inc |
Local |
5.00% |
OWNER/EXECUTIVE
Binkley & Barfield, Inc.
Youseff Laham, PE, President
MAPS
Attached