Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
Traveling PublicMapsProjectsRoad ClosuresNewsDoing BusinessLetting & BiddingCareers@IDOTGeneral Info

The Division of Highways and its nine district offices are responsible for the design, construction, operation and maintenance of the state highway system and the administration of the state's local roads and streets program. The state highway system of 17,000 miles includes 2,050 miles of interstate roads. This is part of the 138,000-mile network of state, county, municipal, township and toll roads--the third largest system in the nation.

IDOT Privacy Statement | Illinois Privacy Information | Kids Privacy | Web Accessibility  | FOIA