By the end of next week, Metro should—hopefully—be done with work to prevent leaks inside tunnels along the Red Line.

Metro is finishing up the final stretch of leak mitigation work that has resulted in single tracking during weekends and weeknights.

Metro said there will be single tracking this week from 9 p.m. until closing between Friendship Heights and Grosvenor. This will cause trains to run only once every 20 to 25 minutes. Work is scheduled to be done as soon as Thursday, Feb. 15.

Work to mitigate Red Line leaks has been going on since July, with expanded work starting in December. Metro’s work involves drilling hundreds of holes through the tunnel ceiling and injecting a polymer through the holes to form a protective membrane on the exterior of the tunnel walls. The membrane is expected to help prevent water leakage that could cause Metro’s infrastructure to corrode.

Were you impacted by single tracking caused by the leak mitigation program?

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