Our Portfolio STV works on some of North America’s largest and most complex infrastructure projects. Filter projects Roma and Hett Avenue Flood ResilienceView detailLogan International Airport Roadway ImprovementsView detailDarrell Road at Neville Road/Case Road Roundabout ConversionView detailGlobal Gateway Connector BridgeView detailS-75/Cherokee Road Bridge ReplacementView detailLoop 1604 North ExpansionView detailConnecticut River Bridge ReplacementView detailBoundary Street Bridge ReplacementView detailBroadway Viaduct ReplacementView detailI-35 Northeast Expansion (NEX) Northern SectionView detailFrancis Scott Key Bridge ReconstructionView detailLong Bridge South PackageView detailI-Move Kentucky View detailMountain Parkway Expansion Magoffin County West SegmentView detailBelden G. Bly Bridge ReplacementView detailSawtooth Bridges ReplacementView detail