Photo by PoPville flickr user pablo.raw
From a WMATA press release:
Over the three-day Martin Luther King, Jr. holiday weekend, Metro will advance major track work on the Blue and Orange lines, along with single tracking on the Red Line. The work will begin at 10 p.m. Friday night and continue through system closing on Monday, January 16.
Beginning shortly before 10 p.m. Friday and continuing through closing Monday, free shuttle buses will replace Blue and Orange line trains between L’Enfant Plaza and Eastern Market, making intermediate stops at Federal Center SW and Capitol South stations.
Two stations — Federal Center SW and Capitol South — will be closed.
Blue Line trains will operate every 16 minutes in two segments: between Franconia-Springfield and L’Enfant Plaza, and between Eastern Market and Largo Town Center.
Orange Line trains will operate every 16 minutes in two segments: between Vienna and L’Enfant Plaza, and between Eastern Market and New Carrollton.
At stations served by both Blue and Orange line, trains will operate every eight minutes in each direction.
Beginning at 10 p.m. Friday and continuing through closing Monday, Red Line trains will single track in two areas: between Dupont Circle and Van Ness-UDC to allow for NTSB-recommended track circuit replacement, as well as rail and fastener renewal, and between Takoma and Forest Glen to allow for fiber optic cable installation and platform rehabilitation. Throughout the weekend, Red Line trains will operate between Shady Grove and Glenmont every 24 minutes. Between 9 a.m. and 9 p.m. on Saturday, Sunday and Monday, additional trains will operate between Fort Totten and Farragut North. Customers should allow additional travel time.