EMERGENCY WATER OUTAGE
Feb 08, 2026 | 01:00 AM

EMERGENCY WATER OUTAGE
Feb 07, 2026 | 11:00 PM

Emergency Water Outage
Feb 07, 2026 | 04:00 PM

Sewage clean up near Capital Crescent Trail

May 01, 2014

Late in the day on Wednesday, April 30, a break occurred in the Upper Potomac Interceptor, a large interceptor sewer carrying sewage to be treated at the Blue Plains Advanced Wastewater Treatment Plant. DC Water dispatched a contractor crew to complete a bypass of the sewer line. This entailed installing a temporary sewer line that DC Water used to bypass the damaged pipe while repairs are made. The Capital Crescent Trail will remain closed while DC Water makes repairs, which are expected to take up to a week or more. The break caused an estimated 5 million gallons of combined sewage to overflow into the Potomac River. This spill ran overland and over the trail before reaching the river.

The area -- the Capital Crescent Trail between Fletchers Cove and the end of the trail at Water Street in Georgetown-- has been closed to the public while repairs take place and everyone is asked to avoid contact with the area. Please do not walk or bike through the portion of the trail that is closed. The tunnel below Canal Road near Foxhall is also closed.

DC Water is formalizing a clean up plan as well as a repair plan for the break.

In addition to avoiding contact with the affected land area, the public is cautioned to avoid contact with the Potomac River for 72 hours, just as is the case after any heavy rains, due to combined sewer overflows. An average of 638 million gallons per year of combined sewage flows into the Potomac River during intense rainstorms. This will be addressed in the long term by the Clean Rivers Project, the $2.6 billion program to significantly reduce combined sewer overflows to the Potomac and Anacostia Rivers and Rock Creek.

Latest News

Trench boxes at construction site for new pit accessing Potomac Interceptor Upstream

DC Water and its contractors continue to make progress constructing new access points to the Potomac Interceptor, one upstream of the damaged section, and an additional entry downstream to divert more wastewater flow from the pipe. These access points will allow crews to install a bulkhead, blocking flow in the pipe upstream of the collapsed area, keeping the site as dry as possible so crews can safely remove an extensive rock dam currently blocking the pipe.

Photo of giant rock and boulder removed

DC Water is releasing new findings regarding the environmental impacts following the January 19, collapse in a section of the Potomac Interceptor. Based on flow monitoring data collected before and after interim bypass pumping was activated, DC Water estimates approximately 243 million gallons of wastewater has overflowed from the collapse site.

Image of rock blockage taken by CCTV inside the Potomac Interceptor downstream of the collapse

Update on Extended Repairs, Safety Measures, and Water Quality Monitoring

Overnight CCTV inspection of the Potomac Interceptor revealed the blockage inside the collapsed sewer line is far more significant, showing a large rock dam stretching approximately 30 feet downstream of the original failure.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Picture of new bike pedestrian path and traffic detour
New Path for Capital Crescent Trail Opens at Georgetown Waterfront Park

DC CLEAN RIVERS – POTOMAC RIVER TUNNEL PROJECT
If you bike, drive, or walk through Georgetown, we’ve got changes starting this week around the Potomac River Tunnel construction on Water Street NW. The Capital Crescent Trail has a new temporary detour through Georgetown Waterfront Park, open now for cyclists between 33rd and Potomac streets NW.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting
Date
February 19, 2026
Thursday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 40% of the last 3 payments made and in the new fiscal year 50% will be credited. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.