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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.

Material Approvals

As part of the implementation of the Transportation Improvement program the Department is required to have an inspection and material testing program. IDOT is responsible for establishing policies and procedures that provide for the quality assurance of materials used in highway projects. Material Suppliers and Producers can utilize the left hand navigation menu or links below to learn more.

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