Iowa · Unknown Co.
South Fork Iowa River
· 37 mi · Class
Optimal: 90–275 CFS · USGS #05451210
551CFS
5.26 ft gauge height
Above Optimal→Stable
Avg flow: 181 cfsHist. median: 0 cfsUSGS #05451210
Designated Water Trail · State
Tributary of Iowa River in Hardin County Iowa.
10-Year Flow Patterns
See 10 years of flow patterns for this river — historical analysis is a Pro feature.Upgrade to Pro →
Your Optimal Range
Set your personal optimal CFS window per river — custom ranges are a Pro feature.Upgrade to Pro →
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.
Know the South Fork Iowa River? Your local knowledge makes this page better for every paddler, angler, and guide who comes after you.
Improve This River →