September 23, 2021

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

June 7, 2019

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

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

December 4, 2018

Welcome to the new Illinois Urban Manual website!