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.

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Practice Standards

Construction Specifications

Material Specifications

Standard Drawings

Practice Selection Guide

Illinois Urban Manual Contents

Sections

1: Preface and Introduction 2: Non-point Source Pollution Control Processes and Planning Principles 3: Planning Procedures 4: Practice Standards 5: Construction Specification 6: Material Specification 7: Standard Drawings

LATEST ANNOUNCEMENTS

November 13, 2025

SAVE THE DATE! Winnebago SWCD SESC Workshop February 26, 2026

Mark you calendar! Details coming soon…

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November 12, 2025

2026 IUM Calendar is here!

Request complimentary copies from your local SWCD Funding for this project provided, in part, by the Illinois Environmental Protection Agency (IEPA) through Section 604 of...

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November 5, 2025

Guide to 2026 GPS Datum Shift

Changes to the reference systems behind GPS are coming in 2026, and this could mean boundaries, A-B lines and other mapped data could be affected....

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