Blue and Orange Line riders should expect significant disruptions on Metro this weekend.

From about 10:00 p.m. tonight (Friday) to system closing on Sunday, the Rosslyn and Arlington Cemetery Metro stations will be closed and both the Blue and Orange lines will be split into two segments.

The closure will “allow for tie and insulator renewal, joint and fastener renewal, tunnel leak repair, station sign installation and fiber-optic cable work,” Metro said in a press release.

Free shuttle buses will replace trains between Courthouse and Foggy Bottom on the Orange Line, and between Pentagon and Foggy Bottom on the Blue Line. The two segments of each line — a Virginia segment and a D.C./Maryland segment — will operate “at regular weekend intervals.”

Metro says customers should anticipate 20-30 minutes of additional travel time and should consider alternate travel options, like accessing D.C. via trains traveling over the Yellow Line bridge.

Flickr pool photo by Chris Rief