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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

Division of Water Resource Management

The Division of Water Resource Management is responsible for:

  • Regulating Floodway Construction Activities within or adjacent to Illinois rivers, lakes and streams,
  • Regulating Public Waters, 
  • Regulating Construction and Maintenance of Dams,
  • Lake Michigan Water Use allocation and monitoring,
  • National Flood Insurance Program coordination and, 
  • Flood Mitigation Program (nonstructural) administration.
 

The Division provides these services through offices in Chicago, Bartlett and Springfield.

NE IL Regulatory Program

Downstate Regulatory Program

NFIP Program

Dam & Levee Safety Programs

Lake Michigan Water Allocation

Studies & Mapping