For more than two decades, STV has provided engineering design, environmental and construction phase services on behalf of the Connecticut Department of Transportation for upgrades exceeding $200 million at the New Haven Rail Yard in New Haven, CT. These improvements support the maintenance and operating requirements for the Metro-North Railroad's New Haven Line, as well as diesel-hauled trains operated by the Connecticut Commuter Rail service. 

At the 70-acre site, STV has designed improvements for two new passenger rail car storage yards, as well as a new yard traction power catenary, a transportation building, a running repair shop, a stormwater pump station, a fueling facility, a yard master office, and a control center for the New Haven interlocking and yard.