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!