Metro’s Blue Line will be split into two segments this weekend due to track work around Arlington National Cemetery.

Starting at 10:00 p.m. on Friday, the Blue line from Franconia-Springfield will travel across the Yellow Line bridge to Mt. Vernon Square. Meanwhile, a second Blue Line segment will run from Rosslyn to Largo Town Center.

Buses will run between the Pentagon and Rosslyn stations, and between Pentagon and Arlington National Cemetery.

The closure is due to “NTSB-recommended track circuit module replacement and improvements to third-rail infrastructure and track conditions,” according to WMATA.

Meanwhile, on the Orange Line, trains will run every 20 minutes due to station platform work in D.C. Yellow Line trains will run every 15 minutes as a result of work on the Blue and Green Lines.

Normal service will return Monday.