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Agency Alert

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.

Contact Us

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

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

Helpful Links

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