DC Clean Rivers’ Anacostia River Tunnel Holes Through. In January 2017, DC Water’s and its design-builder, Impregilio Healy Parsons (IHP), completed tunneling the 2,700 foot long Anacostia River Tunnel. Congratulations to DC Water and IHP! See the video here....

DC Clean Rivers Project Blue Plans Tunnel wins ENR’s Mid Atlantic Project of the Year Award. Congratulations to DC Water and its Blue Plains Tunnel design-builder, Traylor Skanska Jay-Dee for yet another award. This is one of four major tunnels...