DC Water
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Industry News
Piney Branch Tunnel Groundbreaking, Final Phase of Clean Rivers Project
On July 9, 2026, DC Water broke ground on the Piney Branch Tunnel, the final major tunnel in the Clean…
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Industry News
DC Water launches tunnel boring machine Mary at Potomac River Tunnel Project
The Potomac River Tunnel Project’s first tunnel boring machine, Mary, has launched her northbound journey breaking through the soil to…
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Industry News
DC Water TBM passes key factory test for Potomac River Tunnel Project
DC Water announced that it has reached a major milestone in the Potomac River Tunnel Project with the successful completion…
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Industry News
DC Water completes major repairs on century old sewer tunnel
DC Water announced that is has completed repair work on 3-m (9-ft) diameter sewer tunnel after nearly a long construction…
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Industry News
DC Water’s Potomac River Tunnel Project to begin controlled underground blasting
As part of the excavation work for DC Water’s Potomac River Tunnel Project, weekly controlled underground blasting operations at the…
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Industry News
Piney Branch Tunnel Project moves forward
DC Water’s Piney Branch Tunnel Project is moving ahead with construction, the next phase of the Authority’s Clean Rivers initiative…
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Industry News
DC Water breaks ground on Potomac River Tunnel Project
DC Water hosted a groundbreaking ceremony on May 21 to officially commence construction activities for the Potomac River Tunnel Project…
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Industry News
DC Water Awards $819 Million Contract for Potomac River Tunnel
The DC Water Board of Directors announced the approval of a design-build contract for construction of the Potomac River Tunnel…
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Industry News
DC Water’s new Anacostia River Tunnel goes online
DC Water announced that the first phase of the Clean Rivers Project to control combined sewer overflows to the Anacostia…
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Industry News
TBM finished boring Northeast Boundary Tunnel
DC Water’s Clean Rivers Project passed another milestone with the breakthrough on the Northeast Boundary Tunnel by the Herrenknecht tunnel…
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