Every day, IDOT strives to provide safe, cost-effective transportation for Illinois in ways that enhance quality of life, promote economic prosperity, and demonstrate respect for our environment.

IDOT has responsibility for the planning, construction, operation and maintenance of Illinois' extensive transportation network, which encompasses highways and bridges, airports, waterways, public …

Jun 28, 2023 · In this section of the website we provide information about IDOT, including a brief overview of the department, our history and governance, as well as our performance across our day …

Access the Procurement section of the IDOT website for available procurement opportunities, contract compliance resources, and required policies and procedures for vendors.

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IDOT operates with its central headquarters in Springfield and five transportation regions across the state. Throughout each region, IDOT strives to accomplish its primary objectives through the …

In order to carry out IDOT's commitment of zero fatalities, it is vital to keep our motorists and workers safe on Illinois roadways. Work zones can be complex for motorists to travel through and the …

Dec 31, 2025 · The Illinois Department of Transportation not only ensures that Illinois is safe to travel through, but also helps make it a great place to live and visit. By visiting the IDOT Update page you …

IDOT issues commercial vehicle registration and oversize and overweight permits to ensure the safety of truckers and motorists alike, to protect and preserve our highway infrastructure, and to accommodate …

IDOT is responsible for the design and planning of transportation improvement projects. As necessary, IDOT works with consulting firms to accomplish this task. If you are interested in providing these …