Track work will affect four of Metro's six lines this weekend.
Trains on the Green and Red lines will run every 15 minutes, while Orange Line trains operate every 18 minutes.
Buses will replace trains between Huntington and King Street on the Yellow Line. Riders will only be able to take the Yellow Line between Franconia-Springfield and Mt. Vernon Square.
Trains on the Blue and Silver line will operate at regular intervals.
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