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Agency Alert

Welcome to the new IDOT home page. Our location has changed, please update any bookmarks.

Construction

IDOT and its contractors utilize several manuals and guides to comply with the requirements of the ILR10 and ILR40 NPDES Permits.

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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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