WASHINGTON — Yellow Line trains were sharing a single track south of L’Enfant Plaza after a train operator found water spewing through the wall of a tunnel between the station and the Potomac River.
Metro said one track was shut down shortly after that train operator reported the water around 11:30 a.m. Thursday.
Engineers do not believe the water threatens the structural integrity of the tunnel, Metro spokesman Dan Stessel said. But the cause of the water gushing through a hole in the tunnel wall was not immediately clear.
The leak is about 2,000 feet from the L’Enfant Plaza Station, Stessel said, which would put it near or under the Washington Channel, a waterway separating the Southwest Waterfront from East Potomac Park.
Stessel said it appears the water is coming from outside the Metro system.
As of 1 p.m., there was no estimate for when the leak would be stopped.
The Yellow Line delays are in addition to an existing stretch of single-tracking south of the Braddock Road Station in Virginia for ongoing repair work. The delays could have ripple effects for Blue and Green line riders.
Metro has long had problems with water entering the underground system, and has dedicated a team to resolving water issues on the Red Line during the last several months.
Metro provided this video of water pouring into the Yellow Line tunnel:
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