Routine inspections of the Potomac River bridge will cause delays along the blue and yellow lines this weekend.
Metro's yellow line bridge over the Potomac River will be closed this weekend for inspections, and that, along with other work, will mean changes for riders.
Beginning at 10 p.m. Friday, all yellow line trains heading in or out of Washington will be rerouted to the blue line via the Arlington Cemetery and Rosslyn stations as perform an annual inspection of the Metro bridge over the Potomac.
Meanwhile, track work and station upgrades will have trains sharing a single track over the weekend on the Blue line between Stadium Armory and Addison Road, on the Orange line between Vienna and West Falls Church, and on two stretches of the Red line between Shady Grove and Twinbrook and between Takoma and Forest Glen.
Metro says it will take 20 extra minutes to get through these areas.