DC Water will host a virtual community meeting on Thursday, June 11, 2026, to inform residents and other stakeholders about the emergency rehabilitation of a section of the Potomac Interceptor at Muddy Branch in Potomac, Maryland.

Measures are in place to help protect downstream drinking water infrastructure

DC Water is accelerating rehabilitation work on a section of the Potomac Interceptor at Muddy Branch near Pennyfield Lock (Lock 22) in Potomac, Maryland. Inspections found structural deterioration, including significant corrosion and exposed rebar, that requires immediate attention.

Following a 27-day closure, DC Water will reopen a section of Piney Branch Parkway between Arkansas Avenue and Beach Drive NW early Monday morning, restoring an important cross-town connection for thousands of District commuters. During the closure, a section of the road was temporarily relocated for construction of DC Water’s Piney Branch Tunnel Project.