The Dulles Corridor Metrorail Project, colloquially known as the Silver Line, is a 23 mile expansion of the current Metrorail system that connects downtown Washington, D.C. to the burgeoning suburbs of the Dulles Corridor, all the way from Tyson’s Corner to Ashburn, VA. RH Steel Erectors has been performing ongoing work on this region-shaping initiative by installing over 5,780 feet of stainless steel hand and wall railings.