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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.

Available Coverage

IDOT maintains a film library dating back to its inception. During that time, over 8,000 projects have been flown at various scales and covering various areas throughout the state. In addition, high altitude photographic coverage of nearly the entire state is available from a series of late 1960’s, late 1970’s, 1988, 1993/94 and 1998/99, and 2005 photography. Although the vast majority of this photography is in black and white, there are a limited number of projects which have been flown in color or color infrared.