7:30 A.M. Update:
Normal service has resumed on the Blue and Yellow Lines, according to Metro.
7:10 A.M. Update:
Single-tracking ended on the Blue and Yellow Lines at 6:53 a.m., according to Metro. Normal service has been restored, but you can expect residual delays to linger on both lines.
6:52 A.M. Update:
Trains are single-tracking between Arlington Cemetery and Pentagon City due to a switch malfunction outside of the Pentagon station.
6:42 A.M. Update:
Expect residual delays to continue in both directions on the Blue and Yellow lines. Delays stem from signal problems following overnight track work, according to Metro.
Blue and Yellow Line trains are single-tracking between L’Enfant Plaza, Pentagon City and Arlington Cemetery due to unscheduled track maintenance. There are delays in both directions on both lines.