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 …

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

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

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 …

These are not legitimate messages from the Illinois Department of Transportation. If you receive a message report it to the Federal Trade Commission and/or the FBI’s Internet Crime Complaint …

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 …

Work zones can be complex for motorists to travel through and the unexpected can occur. IDOT urges and encourages motorists to pay attention to workers in construction and maintenance …

Dec 31, 2025 · Construction Release - Friday, December 26, 2025 District 3 $7.2 million project improves gateway to Old Route 66 I-55 project in Livingston County complete Construction …

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 …

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 …