Photo by PoPville flickr user JJ Jackson

From WMATA:

“Reconstruction of the Metrorail system will continue over the weekend of January 9-11, 2015 with service adjustments on five of six rail lines.

This weekend, Green Line trains will operate on a normal schedule. Red Line trains will run every 10-20 minutes. Orange, Silver, Blue and Yellow line trains will operate every 16 minutes. From 12:01 a.m. Saturday through closing Sunday, buses will replace Yellow and Blue line trains between King St-Old Town and Reagan National Airport stations.

Red Line
Trains every 10-20 minutes

From 10 p.m. Friday through closing Sunday, Red Line trains will operate every 20 minutes between Shady Grove & Glenmont.
On Saturday and Sunday between 9 a.m. and 9 p.m., additional trains will run between Van Ness & Silver Spring, resulting in service every 10 to 12 minutes between these stations.

Work Performed: Rehabilitation of floating concrete slabs and joint elimination for a safer, smoother ride between Friendship Heights & Van Ness; track, fastener and insulator renewal for more reliable service between Silver Spring & Wheaton.

Orange Line
Trains every 16 minutes

Orange Line trains will operate every 16 minutes throughout the weekend.

Work Performed: Rail fastener renewal and joint elimination for a safer, smoother ride between Clarendon & Ballston.

Silver Line
Trains every 16 minutes

Silver Line trains will operate every 16 minutes throughout the weekend.

Work Performed: Rail fastener renewal and joint elimination for a safer, smoother ride between Clarendon & Ballston.

Blue Line
Buses replace trains between King St-Old Town & Reagan National Airport; Trains every 16 minutes outside the work zone

From 12:01 a.m. Saturday through closing Sunday, buses will replace Blue Line trains between King St-Old Town & Reagan National Airport stations. During this time, Braddock Road Station will be closed. Please allow additional time for shuttle bus service.

Blue Line trains will operate:

Between Franconia-Springfield & King St-Old Town every 16 minutes
Between Reagan National Airport & Largo Town Center every 16 minutes

Work Performed: NTSB-recommended track circuit module replacement

Yellow Line

Buses replace trains between King St-Old Town & Reagan National Airport; Trains every 16 minutes outside the work zone

From 12:01 a.m. Saturday through closing Sunday, buses will replace Yellow Line trains between King St-Old Town & Reagan National Airport stations. During this time, Braddock Road Station will be closed. Please allow additional time for shuttle bus service.

Yellow Line trains will operate:

Between Huntington & King St-Old Town every 16 minutes
Between Reagan National Airport & Fort Totten every 16 minutes

Work Performed: NTSB-recommended track circuit module replacement

Green Line
Regular weekend service”