Photo by PoPville flickr user dracisk

From WMATA:

The ongoing effort to rebuild and upgrade the Metrorail system to provide safer and more reliable service will continue over the weekend of March 8-10, 2013, on all lines. The work will begin at 10 p.m. Friday and continue through system closing on Sunday.

Orange Line
• Free shuttle buses will replace trains between Stadium-Armory and Cheverly to allow for platform reconstruction, rail joint and fastener renewal, grout pad rehabilitation and communication system upgrades. Two stations will be closed: Minnesota Ave and Deanwood.
• In addition, trains will single track between East Falls Church and West Falls Church to allow for signal system integration with the new Silver Line extension.
• Orange Line trains will operate in two segments throughout the weekend: between Vienna and Stadium-Armory every 20 minutes, and between New Carrollton and Cheverly every 20 minutes.
• Shuttle bus service will operate on two routes: Local buses will operate between Stadium-Armory and Cheverly serving all intermediate stations; add up to 30 minutes of travel time. Express buses will operate between Stadium-Armory and Cheverly stations only; add up to 20 minutes of travel time.
• Note: To allow for bus connections, the last train of the night from New Carrollton to Cheverly will depart 50 minutes earlier than normal — at 1:46 a.m. on Friday and Saturday nights, and at 10:46 p.m. on Sunday night.

Blue Line
• Free shuttle buses will replace Blue Line trains between Stadium-Armory and Benning Road to allow for platform reconstruction, rail joint and fastener renewal, grout pad rehabilitation and communication system upgrades.
• Blue Line trains will operate in two segments throughout the weekend: between Franconia-Springfield and Stadium-Armory every 20 minutes, and between Largo Town Center and Benning Road every 20 minutes.
• Customers using shuttle buses to travel through the work zone should add up to 15 minutes to their travel time.
• Note: To allow for bus connections, the last train of the night from Largo Town Center to Benning Road will depart 14 minutes earlier than normal — at 2:10 a.m. on Friday and Saturday nights, and at 11:10 p.m. on Sunday night.

Red Line
• Red Line trains will single track between Judiciary Square and Rhode Island Avenue to allow for track renewal and communication system upgrades.
• Throughout the weekend, trains between Shady Grove and Glenmont will operate every 20 minutes.
• Between 9 a.m. and 9 p.m. on Saturday and Sunday, additional trains will operate between Shady Grove and Judiciary Square, resulting in service about every 10 minutes between those stations.
• Customers on the eastern side of the Red Line should allow about 10 minutes of additional travel time.

Green/Yellow Lines
• Green and Yellow line trains will single track between L’Enfant Plaza and Mt Vernon Square to allow for track maintenance and ceiling tile replacement.
• Yellow Line trains will operate every 20 minutes between Huntington and Mt Vernon Sq only.
• Green Line trains will operate every 20 minutes between Branch Ave and Greenbelt.
• Customers should allow 10 minutes of additional travel time.