Metro is responding to National Transportation Safety Board recommendations by replacing four track switches over the long Columbus Day weekend.
The Farragut West and McPherson Square stations on the Orange and Blue lines are closed through Monday, Oct. 11 for a major rehabilitation. There will be no Blue or Orange line service at Metro Center, either.
Normal service will return when the rail system opens Tuesday.
Free shuttle buses will move passengers around the closures, running between Foggy Bottom-GWU, Farragut West, Farragut North, McPherson Square, Metro Center, Gallery Place and Federal Triangle.
The last trains from the ends of the Blue and Orange Lines will leave 30 minutes earlier than usual. On Monday night, the last Blue Line train will leave Franconia-Springfield at 10:59 p.m.; from Largo Town Center, it's 10:54 p.m. The last Orange Line train will depart Vienna/Fairfax-GMU at 10:55 p.m.; from New Carrollton, it's 11:06 p.m.
The Red Line will have normal service, but riders should add 40 minutes to their trip time if passing through the work zone.