As a firm prequalified in hazardous waste services for the Illinois Department of Transportation (IDOT), Terracon provided environmental planning, oversight, documentation, and closeout reporting for a number of contractors working on the approaches, overpasses, and ramps associated with the Stan Musial Memorial Bridge across the Mississippi River at St. Louis. The cable-stayed bridge, with a span of 1,500 feet, was built between April 2010 and July 2013. It opened to the traveling public on February 9, 2014. Historical industrial use along the Illinois riverfront meant that the project would encounter marginally-impacted soils requiring special handling to protect workers and the surrounding populations, and to ensure that soils were properly handled and disposed of. Underground storage tanks (USTs) and other remnants of industrial usage were encountered and required special disposal. Environmental components of the project included development of environmental plans and reports, monitoring soil for the presence of contaminated material, soil sampling and testing, disposal of impacted materials, and preparation of reports required by IDOT. Terracon provided a value driven, safety intense approach to minimize cost and reduce or eliminate workplace hazards to site personnel while working in environmentally impacted work zones. Terracon worked with multiple contractors of IDOT during all phases of construction to seamlessly facilitate the management, disposal and environmental components required by IDOT.