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.

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

Reference

View a high-level timeline of Highway Construction to see the process as a whole.
View Official Highways Map Collection.
View Highway Construction from start to finish.

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Illinois Department of
Transportation
Hanley Building
2300 S. Dirksen Parkway
Springfield, IL 62764

(217) 782-7820 or
TTY (866) 273-3681

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