Skip to main content

The IDNR headquarters at 1 Natural Resources Way in Springfield has experienced a power outage and tree damage throughout the grounds as a result of severe storms in the area. The agency expects to reopen the building to the public on Monday, June 15, 2026, though this could be subject to change. Check back here for an update before planning to visit the office in person.

Governor JB Pritzker Illinois.gov Contact IDNR DNR A to Z

Floodplain Publications And Guides

Floodplain Publications

Quick Guide to Floodplain Management (PDF)

Illinois Local Floodplain Administrators Manual (Blue book) 2006 (PDF)

North Eastern IL Local Floodplain Administrators Manual (Green book) 2006 (PDF)

Protecting Your Home And Property From Flood Damage, August 2008 (PDF)

Our Community & Flooding, October 1998 (PDF)

Floodplain Management Resource Guide for Illinois Communities, September 2024 (PDF)

Discharge Certification Form 

Hydrology/Flow Approval Checklist (PDF)

So, You Live Behind A Levee

Water Resources Publications