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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.

Maps

Maps: The Maps section includes General Highway Maps depicting county, city, and township maps which emphasize the road network inside the specific geographic area, 5-Year Functional Classification (Rural & Urban) Maps allowing users to select a map that will provide graphical representation of the FHWA functional classifications of the roadways, and Annual Daily Traffic Maps. The maps are broken down IDOT districts. Maps are presented in PDF format.

Maps for other transportation modes can be found on the applicable Network Overview webpages.

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