Our Portfolio STV works on some of North America’s largest and most complex infrastructure projects. Filter projects Tallman Island Wastewater Resource Recovery Facility Flood Protection Upgrades View detailTriMet’s Banfield Type 1 Substation Replacement ProjectView detailDelta Conveyance Water Supply Project View detailPhilaPort Cruise TerminalView detailCity of Kyle Wastewater Treatment Plant ExpansionView detailSouthwest Water Pollution Control Plant UpgradesView detailHampton Roads Bridge-Tunnel ExpansionView detailPortal North Bridge ReplacementView detailSierra College Student Housing View detailPennsylvania Turnpike MP 324-326 Widening View detailREXA Corporate Headquarters & Advanced Manufacturing FacilityView detailNew Decatur Avenue Elementary SchoolView detailNew Joseph Battin School No. 4View detailPolo Grounds Towers Improvements View detailTweed New Haven Airport Expansion View detailCharlie 2 Pump Station View detail