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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Agency Alert

Welcome to the new IDOT home page.  Our location has changed, please update any bookmarks.


In Illinois, IDOT has statutory responsibility for the planning, construction, operation and maintenance of Illinois' extensive transportation network, which encompasses highways and bridges, airports, public transit, rail freight and rail passenger systems. This vast transportation system supports the fifth largest state in the nation and more than 100 million visitors annually.

Mission Statement

It is our mission to provide safe, cost-effective transportation for Illinois in ways that enhance quality of life, promote economic prosperity, and demonstrate respect for our environment.

Equity Statement

Equity is a core value at IDOT. We are passionate about creating an inclusive workplace that promotes and values diversity while reflecting the communities we serve. Varied backgrounds, ideas and perspectives create a stronger, more productive and creative work environment. We recognize that the deficiencies of the past have more negatively impacted people of color and under-served communities and commit to expanding future opportunities to eliminate systemic barriers to a fully equitable transportation system. We are committed to ensuring there is equity in our hiring, purchasing and planning as well as construction and consulting projects. Together, we will continue to build an inclusive culture that supports, celebrates and encourages the diverse opinions and voices of our employees while building a world class transportation system that serves all of our citizens safely, fairly and equitably.

To learn more about IDOT's enabling statues, secretary and organizational structure, please visit the links below.