What lies beneath?

June 19, 2008

Drinking water is a critical public service and one that most of us take for granted. We expect it to be there when we turn on the tap or flush the toilet. Not many of us think about the 1,300 miles of pipelines and the 36,000 valves that bring the water to us. They’re out of sight, out of mind. At least until there’s a problem, like a water main break that could damage roadways, cause traffic delays and put homes and businesses out of water until repairs are made.
According to the American Water Works Association (AWWA), much of our drinking water infrastructure was constructed between 80 and 100 years ago, and the cost of repairing and replacing these aging pipelines ranges between $280 to $400 billion. That means we will pay more for water, and it’s an investment worth making.
Much of the District’s water system is made out of cast iron pipes, some of which are more than 100 years old. Since its creation in 1996, DC WASA has made significant progress in stabilizing the city’s water infrastructure. But, there’s much more to be done. In its 10-year Capital Improvements Program, DC WASA plans to spend more than $600 million on water system improvements.
Out of sight, out of mind doesn’t work for infrastructure; not for the maze of pipelines, much of which were laid before most of us were born, that delivers a product that’s critical to our health, public safety, and quality of life.

Latest News

Workers constructing the freshwater dam to be used for flushing the C & O Canal

With flow returned to the Potomac Interceptor work has begun on the initial phase of clean-up for the C & O Canal which had been used as a bypass to redirect wastewater around the collapse site and into the pipe further downstream.

Picture of flow back in the Potomac Interceptor

DC Water Celebrates Massive 55-Day Effort, Outlines Next Steps for Rehabilitation and Environmental Restoration

After 55 days of extraordinary effort with crews working around the clock, DC Water has successfully completed emergency repairs and returned the flow to the Potomac Interceptor to mark a major milestone.

graphic with meeting times

Second Meeting Scheduled in Bethesda; Community Forum in Alexandria Next Week

As DC Water nears completion of emergency repairs on the Potomac Interceptor sewer line, we remain committed to transparent communication and partnership with our community. Next week, two meetings are scheduled on March 18, in Bethesda, MD and March 19, in Alexandria, VA to hear from the community and provide informational updates.

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
March 19, 2026
Thursday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. 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.