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February 27, 2002

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Latest News

Tunnel Boring Machine named Mary undergoing Factory Acceptance Testing

Her name is Mary and she’s a tunnel boring machine (TBM) capable of cutting through hard rock and boring a tunnel 21 feet in width. This month, she completed factory acceptance testing in Germany and ...

Head shot of Rabia Chaudhry Director of  Water Supply Resilience

DC Water’s efforts to build a more resilient water supply took a significant step forward with the announcement today of Rabia Chaudhry, PhD, PE, as the first Director of Water Supply Resilience. The ...

Photo of West Road where construction will take place

Beginning the week of April 21, 2025, DC Water will implement temporary traffic lane closures near Georgetown University’s Canal Road Northwest entrance to identify and mark underground utilities for ...

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Tunnel Boring Machine named Mary undergoing Factory Acceptance Testing
Factory Testing Complete on DC Water’s first tunnel boring machine for the Potomac River Tunnel

Her name is Mary and she’s a tunnel boring machine (TBM) capable of cutting through hard rock and boring a tunnel 21 feet in width.

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
May 1, 2025
Thursday, 9:30 AM