Illinois · Unknown Co.

Iroquois River

· 55 mi · Class
Optimal: 300–925 CFS · USGS #05525000
622 avg
1,600CFS
13.09 ft gauge height
Above Optimal
→Stable
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 622 cfsHist. median: 0 cfsUSGS #05525000
State

The Iroquois River originates in Indiana and flows in a northwest direction for 55.4 miles through Illinois to its confluence with the Kankakee River near Aroma Park. The drainage area of the Iroquois River basin is 2137 square miles with 1240 square miles of that area being in Illinois. There are 11 named tributaries to the Iroquois River in Illinois, Spring Creek at 65 miles in length and Sugar Creek at 38.9 miles in length being the two largest. The mainstem Iroquois River is a relatively low gradient, slow moving river that is prone to diatom algae blooms in recent years. (Illinois DNR)

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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

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