Illinois Urban Manual

Funding source for the IUM update initiative is provided by the Illinois Environmental Protection Agency (IEPA) Clean Water Act, Section 604b grant funds.


September 23, 2021

Rolled Perimeter Control Standard Posted

The standard for Rolled Perimeter Control has been reviewed and approved. Please reference IUM practice standard 912.

June 7, 2019

Attention Designers!

Please review the following IDOT Memo regarding  Cofferdams (Type 1) within jurisdictional wetlands and Waters of the U.S. New Special Provision for Cofferdam (Type 1)

January 11, 2019

New and Improved Dewatering Standard!

The Dewatering standard (Standard 813) is now available! Check it out Here

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