Scheduled track work will affect service in four of Metro's five rail lines this weekend.
The work gets underway at ten tonight... starting then, Red line trains will depart Shady Grove and Glenmont just once every 24 minutes all weekend. Tomorrow and Sunday though, extra Red Line trains will run between Silver Spring and Farragut North from 9 a.m. to 9 p.m., making the wait through that stretch more like 12 minutes.
On the Blue and Orange lines meanwhile, trains will run once every every 24 minutes all weekend.
And on the Yellow line there will be a twenty-four minute interval between trains all weekend.
There's no scheduled work on the Green line, and around the system service should be back to normal for the Monday morning commute.