Waterlands
Big Sioux River
USGS · 06485910
BIG SIOUX RIVER
USGS · 06485910LIVE

Big Sioux River near Jefferson, SD

PLYMOUTH COUNTY, IA42.6264°N, -96.5153°W Updated 16 hr ago
FLOW RATE
1,098cfs
GAUGE HT
9.62ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
1,098cfs 66.2% vs avg
Optimal band: 865–1,171 cfs
PERIOD HIGH
3,786cfs
PERIOD LOW
315cfs
RUNNABLE
28%
last 1 year in band

Gauge Height

9.62ft
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Station Location

42.6264, -96.5153
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DATA · USGS · NOAA · NWSUPDATED 2026-09-23 00:00 UTC
Site #06485910·USGS

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