Testing will continue through September 10 at six Maryland locations closest to January sewer collapse
DC Water is moving from daily Potomac River water quality testing to testing twice a week. The change is part of our continued response to the January Potomac Interceptor sewer collapse. Daily testing continued past the original July 31 end date and today will be the last day DC Water will test ...
Starting on or about Aug. 7, 2026, weather permitting, drivers can expect a temporary lane closure southbound on Rock Creek and Potomac Parkway NW near the intersection of Virginia Avenue NW and F Street NW. The closure will allow DC Water crews to pour a large concrete foundation for the Potomac River Tunnel Project. The foundation will provide a strong base for the tunnel shaft, supporting the ...
First of four emergency repairs on Potomac Interceptor finished
DC Water has finished the first of four emergency repair projects on the Potomac Interceptor sewer line. Crews completed work today to strengthen a 600-foot section of pipe at Dulles International Airport.
Crews also reach a major milestone near Dulles International Airport as the next phase of repairs begins this week
DC Water has completed the first major step in emergency repairs to a 175-foot section of the Potomac Interceptor near Pennyfield Lock in Potomac, Maryland. Crews added a new, stronger lining inside the pipe after inspections found serious wear and damage. The work is part of ongoing ...
Beginning this week and continuing through mid-August, DC Water will temporarily close one lane overnight on Clara Barton Parkway at the Maryland-D.C. border. The closures are needed so crews can safely bring in equipment and materials for emergency sewer repairs on part of the Potomac Interceptor.
To reduce traffic delays, most of the work will happen in the evening and overnight when fewer cars ...
There is no active spill or overflow. Work to strengthen the pipe to begin soon.
Today, DC Water completed construction on a temporary bypass system as part of sewer repairs on the Potomac Interceptor near Pennyfield Lock in Potomac, Maryland. Crews turned on the pumps and successfully tested the system. With the bypass now ready, it will allow us to begin the emergency repairs inside the pipe by ...
Today, DC Water broke ground on the Piney Branch Tunnel, the final major tunnel in our Clean Rivers Project. This work will help keep sewage and trash out of local waterways and make Rock Creek, the Potomac River, and the Chesapeake Bay cleaner for our community.
When we finish the Piney Branch Tunnel, it will hold at least 4.2 million gallons of rainwater and wastewater during heavy storms ...
Starting the week of July 13, 2026, people who live, work or travel near the Canal Road NW entrance to Georgetown University may hear controlled blasting. This work is part of our Potomac River Tunnel Project.
When blasting happens, neighbors may hear a brief noise or feel light shaking. Drivers, cyclists, and pedestrians on Canal Road NW may also be stopped for a few minutes while we safely ...
DC Water will continue daily Potomac River water quality testing through July 31. The testing is part of ongoing monitoring after the January 19 collapse of a section of the Potomac Interceptor, a major sewer line. Testing had been expected to move to weekly after the July 4 holiday period.
Customers, residents, and river users will continue to receive daily testing results while the Maryland ...
As the District gets ready for Independence Day celebrations and America's 250th events, DC Water is taking steps to keep everyone safe and make sure that water and wastewater service runs smoothly over the holiday.
This year’s preparations come as the region faces an extreme heat wave. These conditions with the potential for record breaking temperatures across the region can pose health risks and ...
