IDOT opens $63M construction materials testing and research center in Springfield

Ontario Construction News staff writer

The Illinois Department of Transportation (IDOT) has opened a new $63 million Materials Testing and Research Center in Springfield, a facility designed to modernize the testing and evaluation of materials used in highway and bridge construction across the state.

Completed on the IDOT headquarters campus on South Dirksen Parkway, the 81,000-sq.-ft. building replaces the department’s aging materials laboratory, which dated to 1934. Nearly half of the new facility is dedicated to laboratory space, expanding IDOT’s capacity to test construction materials while supporting research into longer-lasting transportation infrastructure.

The project was delivered under the supervision of the Illinois Capital Development Board using the design-build delivery method. State officials said the collaborative approach helped maintain the construction schedule while controlling project costs.

“High-quality construction materials are at the foundation of almost everything we are doing,” Illinois Transportation Secretary Gia Biagi said during the facility’s opening. “This new lab and research facility immediately becomes one of our most important assets at IDOT.”

The center consolidates several IDOT operations, including the Bureau of Research offices and technical library, Bureau of Programming’s Traffic Instrumentation Laboratory, meeting space, loading facilities and the District 6 materials laboratory, which supports transportation projects in 15 central Illinois counties.

Each year, IDOT purchases more than $1.5 billion in construction materials, about half of the department’s construction expenditures. The laboratory evaluates asphalt, concrete, aggregates, soils, steel reinforcement, bridge components, pavement markings, structural fasteners and other products before they are approved for use on state transportation projects.

The laboratory is accredited in more than 100 testing methods by the American Association of State Highway and Transportation Officials (AASHTO), allowing it to certify materials used on projects throughout the state. In addition to supporting IDOT projects, many local agencies rely on the department’s qualified materials lists when delivering municipal and county infrastructure work.

Construction of the Materials Testing and Research Center began in late 2024, with the facility opening this month as one of the state’s largest recent investments in transportation research infrastructure.