RIVER GAUGE · BIG SIOUX RIVER
Big Sioux River above Canton
Lincoln County, South Dakota
Water level1225.11 ft
Flow244 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action1233 ft
Minor flood1235 ft
Moderate flood1238 ft
Major flood1245 ft
The past week
Loading chart…
What floods at each level
- 1245 ft
Highway 18 begins to flood and major damage will occur to trees and fences throughout the floodplain.
- 1238 ft
Nearly all crop and pasture land in the 1/2 mile wide floodplain will be inundated.
- 1237 ft
The park on the south side of Canton begins to flood.
- 1236 ft
The parking lot at the Big Sioux access point off of Hwy 18 at the gauge location begins to flood.
- 1235 ft
Flooding begins to affect significant amounts of crop and pasture land.
- 1233 ft
The parking lot of the Big Sioux Access point on the south side of Canton begins to flood.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 21, 2024 | 1248.35 ft | — |
| Jun 16, 2014 | 1246.72 ft | — |
| Sep 12, 2019 | 1245.88 ft | — |
More on Big Sioux River
UpstreamBig Sioux River near Brandon
DownstreamBig Sioux River at Fairview
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 near Castlewood
Big Sioux River near Dell Rapids
Get an alert when Big Sioux River rises
Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.
