DC CLEAN RIVERS – POTOMAC RIVER TUNNEL PROJECT  

DC Water is advising the public of construction impacts starting on or about the week of May 12, 2025, in the 3500 block of Water Street Northwest near the Capital Crescent Trail, weather permitting. Temporary traffic lane closures, trail detours, and parking restrictions will be in effect to allow construction at the site for a facility to capture and divert sewer overflows to the river. 

The work is part of the ongoing Potomac River Tunnel Project to redirect combined sewer and stormwater during heavy rains through the tunnel to the Blue Plains ...

Map: The blue arrows represent the pedestrian detour. Motorists follow the yellow arrows. The bicycle trail remains open.DC CLEAN RIVERS – POTOMAC RIVER TUNNEL PROJECT 

Beginning on or about May 8, 2025, DC Water will begin work to locate and mark underground utilities on K Street Northwest between 29th and 30th streets Northwest. The work, which involves drilling small holes, will require temporary lane and parking closures and parking restrictions.  

This activity is a part of pre-construction work to build DC Water’s Potomac River Tunnel Project and will continue for approximately 2-3 weeks ...

DC Water is preparing for emergency repairs on a large sewer line next to Rock Creek, after discovering significant structural issues. The six-foot pipeline, known as the Rock Creek Main Interceptor, carries as much as 100 million gallons of wastewater a day and could cause significant environmental harm if a failure occurred.During a routine inspection using a closed-circuit camera system, video showed a 200-foot long fracture in the brick-lined tunnel ceiling. The compromised section of pipe is located in an embankment, near 26th Street and Pennsylvania Avenue Northwest. The sewer line ...