The Green River watershed includes portions of Henry, Whiteside, Bureau, Lee, and Dekalb counties. The Green River drains nearly 1,129 sq. mi. in northwestern Illinois.
Counties with ongoing data development or mapping:
BureauHenry
Lee
Whiteside
GREEN RIVER WATERSHED (HUC 07090007)
The Green River watershed includes parts of Henry, Whiteside, Bureau, Lee, and Dekalb counties in Illinois.
Green River Tributaries: Henry and Whiteside Counties
Project Initiation Community Coordination Meeting
August 11, 2026
Meeting Recording (hosted on Illinois Media Space)
Meeting Presentation (PDF)
Green River, Hennepin Feeder Canal, Winnebago Ditch, Main Ditch, & Bureau County
Flood Risk Review Meeting
March 28, 2024
- Meeting Recording (hosted on Illinois Media Space)
- Meeting Presentation (PDF)
Hennepin Feeder Canal, Winnebago Ditch, & Main Ditch
Project Initiation Community Coordination Meeting
November 17, 2023
- Meeting Recording (hosted on Illinois Media Space)
- Meeting Presentation (PDF)
About the Green River
Henry
Lee
Whiteside