Metro is addressing a water issue that has caused several fires on the tracks, including two on the Red Line last Friday. However, there will be service shutdowns and delays to get the work done.

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WMATA will try a method it’s never used before to waterproof tunnels on the Red Line. Crews will drill into the ceiling of the tunnels then release a grout to coat the inside of the tunnel. Metro compared the process to how chocolate syrup cascades down an ice cream sundae.

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But the waterproofing comes with frustrations for Red Line riders with single tracking during the week and shutdowns on the weekends. Here’s when and how it’ll impact service:

Weeknights, July 10-Aug. 11:

  • Single tracking between Friendship Heights and Medical Center
  • Starting at 9 p.m.

Weekends, July 15-Aug. 6:

  • Service suspended
  • Shuttle buses replacing trains between Grosvenor and Friendship Heights