The Metro will open at 5 a.m. on Saturday morning.
There will be normal Metrorail service this weekend for most of the system, but there are some exceptions.
The first difference: Metro system will open two hours early tomorrow at 5 a.m. to help runners get to the Rock 'N' Roll Marathon in Washington. After the early opening, Metro says that except for two stations, trains will run at normal intervals on four of its five rail lines — the Blue, Orange, Yellow, and Green Lines.
The two exceptions are the Greenbelt station on the Green Line, which will be closed. Shuttle buses will ferry passengers between Greenbelt and College Park. The Franconia-Springfield station on the Blue Line will also see reduced service on Saturday only, with trains running once every 20-25 minutes.
On the Red Line, trains will be operating every 16 minutes through the weekend, and between Farragut North and Silver Spring trains will run every 10 minutes from 9 a.m. to 9 p.m.
Service should be back to normal on Monday.