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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

Professional Transportation Bulletin Archives

The following is a collection of past professional transportation bulletins advertised by IDOT. Contained below by year advertised: Professional Transportation Bulletin and press releases. To view the current professional transportation bulletin navigate to Engineering, Architectural & Professional Services: Bulletin.

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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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