Photo by PoPville flickr user Beau Finley

From WMATA:

“Reconstruction of the Metrorail system will continue over the weekend of May 15-17 with service adjustments on all six rail lines.

This weekend, Orange, Silver and Blue line trains will operate every 18 minutes. Yellow and Green line trains will operate every 20 minutes with Yellow line trains operating between Huntington and Mt. Vernon Square only and Red Line trains will operate every 24 minutes with additional service between 9AM-9PM Saturday and Sunday.”