Old Alabama Road 48-Inch Water Transmission Main Relocation

Substantially Completed  End of July 2023.

Old Alabama Road/Old Alabama Road 48-inch Water Transmission Main relocation | BenchMark Management Project

Client: City of Atlanta | Department of Watershed Management

Project Location: Roswell, GA

Project Description:

In coordination with GDOT’s GA-400 Express Lanes project, City of Atlanta Department of Watershed Management (DWM) agreed to relocate roughly 5200 LF of 48” water transmission main outside of the GA-400 right of way. Benchmark Management teamed up with Ruby-Collins for this design-build (DB) contract. The alignment follows Old Alabama Road in the City of Roswell beginning at the Chattahoochee River which required extensive permitting.The overall project delivery schedule was extremely aggressive so DWM ordered 70% of the material while writing the RFP to minimize material procurement time. Benchmark was responsible for figuring out where the material fit into the design which added a level of difficulty. The project was also broken into phases in order to get construction started on the bulk of the pipeline while still working on design and permits on other phases. The project was completed within the contract deadline and it was only possibly due to the advanced material procurement, the design-build contract, and the phased approach to construction and permitting.

Services Provided:

  • Engineering Design
  • Project Management
  • Permitting
  • Utility Coordination