Anacostia River CSO Tunnel Design-Build

The District of Columbia Water and Sewer Authority (DC Water) is implementing its Long Term Control Plan (LTCP) for the District’s combined sewer system.  The LTCP comprises a system of tunnels and diversion sewers for the capture of combined sewer overflows (CSOs) to Rock Creek and the Anacostia and Potomac rivers for treatment at DC Water’s Blue Plains Advanced Wastewater Treatment Plant.  

Recently, a consortium including WDBC member Parsons was awarded a design-build contract for Division H, the second tunnel contract of the Clean Rivers Project.  

Learn more about this new design-build project by downloading our case study = =>