RIVER GAUGE · BIG SIOUX RIVER
Big Sioux River at Sioux Falls N. Cliff Avenue
Minnehaha County, South Dakota
Water level5.00 ft
Flow102 cfs
Last readingSep 16, 2026, 4:30 PM UTC (last recorded)
Action14 ft
Minor flood16 ft
Moderate flood18 ft
Major flood31 ft
The past week
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What floods at each level
- 30 ft
The levees upstream of the gauge will begin to be overtopped.
- 28 ft
The levees downstream of the gage will be overtopped.
- 22 ft
Portions of Rice St between Cleveland and Veterans Pkwy begin to flood.
- 18 ft
Significant amounts of rural land downstream of Sioux Falls, and the salvage yard in extreme eastern Sioux Falls, will begin to flood. If levees fail, significant flooding around the city street department shops will result.
- 17.5 ft
60th Street North and Timberline Road begin to flood.
- 16 ft
Rural flooding downstream of Sioux Falls begins, and the Glenwood Stable begins to flood.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Sep 13, 2019 | 26.08 ft | 25,900 cfs |
| Jun 21, 1984 | 25.4 ft | 21,600 cfs |
| Jul 6, 1993 | 23.84 ft | 18,000 cfs |
More on Big Sioux River
DownstreamBig Sioux River near Brandon
Big Sioux River near Brandon
Big Sioux River near Bruce
Big Sioux River near Brookings
Big Sioux River near Estelline
Big Sioux River above Flandreau
Big Sioux River near Jefferson
Big Sioux River near Richland
Big Sioux River below Watertown
Big Sioux River above Canton
Big Sioux River near Castlewood
Get an alert when Big Sioux River rises
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