Photo by PoPville flickr user Joe Flood
From WMATA:
“Reconstruction of the Metrorail system will continue over the weekend of June 19-21 with service adjustments on all 6 rail lines beginning at 10 p.m. Friday and continuing through system closing on Sunday. On the Red Line during daytime hours, five stations from Shady Grove to Grosvenor have service every 12 minutes, rather than every 6 minutes.
Due to scheduled rebuilding, Orange, Silver, Blue, Yellow and Green line trains will operate every 20 minutes, rather than every 12-15 minutes.”