River gauges›South Dakota
RIVER GAUGE · BIG SIOUX RIVER

Big Sioux River above Dell Rapids

Minnehaha County, South Dakota

Water level1473.37 ft
Flow63 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action1479.5 ft
Minor flood1481 ft
Moderate flood1484 ft
Major flood1486 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Sep 12, 20191490 ft—
Mar 23, 20191487.53 ft—
Jun 23, 20241482.29 ft—

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