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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.

Illinois Department of Transportation

Manuals & Guides

Please visit the Policies & Publications Center for a list of manuals and guides, which includes instructional materials such as Special Provisions and Type, Size, and Location documents. If you would like to purchase a Manual, please visit our Manual Sales page.

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Contact Us

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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