Panel discussion to bring together key partners on the path forward

On November 19, DC Water will launch an ambitious effort – Pure Water DC – to reduce the District’s reliance on the Potomac River as its only water source. We’ll be hosting an event to outline our vision and strategy for resilience and host an expert panel to address one of the most critical challenges facing the nation’s capital.

DC CLEAN RIVERS – POTOMAC RIVER TUNNEL PROJECT

Beginning on or about November 12, 2025, DC Water will begin preparing for construction on the Potomac River Tunnel on the 3300 block of Water Street NW, beneath the Whitehurst Freeway.

Construction Nov 7-10, 14-17; Additional Weekend Closures Will Also Be Necessary 

For the next two weekends, beginning Friday evening and continuing through early Monday, November 7-10 and 14-17, a section of the Rock Creek Multi-use Trail near Rose Park—between P Street NW and Pennsylvania Avenue NW— will be temporarily closed for construction. One sounthbound lane of Rock Creek and Potomac Parkway will also be closed, impacting traffic. This closure is part of ongoing high-priorty repairs to the Rock Creek Main Interceptor (RCMI), a major sewer line which transports more than 100 million gallons of wastewater each day.