Our Portfolio STV works on some of North America’s largest and most complex infrastructure projects. Filter projects Hampton Roads Bridge-Tunnel ExpansionView detailPennsylvania Turnpike MP 324-326 Widening View detailSecond Avenue Subway Phase IIView detailRoute 51 Bridge DemolitionView detailP.S. 253K AdditionView detailQuincy Bus FacilityView detailHoward Street Tunnel Clearance ProgramView detailGrand Central-42nd Street Station Pedestrian TunnelView detailLong Bridge South PackageView detailMcDonald’s USA Site Design and Improvements View detailI-Move Kentucky View detailMountain Parkway Expansion Magoffin County West SegmentView detailBelden G. Bly Bridge ReplacementView detailGateway Program Hudson River TunnelView detailAccessibility Improvements at New York City Subway and Staten Island Railway StationsView detailGrand Central MadisonView detail