Major Flood
1245 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: CBSS2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
1238 ft
Minor Flood
1235 ft
Action Stage
1233 ft
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.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 21, 2024 | 1248.35 ft | — |
| Jun 16, 2014 | 1246.72 ft | — |
| Sep 12, 2019 | 1245.88 ft | — |
About This Gauge
NWS LID
CBSS2
River
Big Sioux River
County
Lincoln, SD
Coordinates
43.3071°N, 96.5283°W
Get Flood Alerts for Big Sioux River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Big Sioux River above Canton?
The Big Sioux River above Canton gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Big Sioux River above Canton?
The NWS-defined flood stage for Big Sioux River above Canton is 1235 feet. Action stage begins at 1233 feet. Moderate flooding starts at 1238 feet, and major flooding at 1245 feet.
How do I get alerts when Big Sioux River rises?
Download StormCast free on Google Play, go to River Gauges, and add Big Sioux River above Canton to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Big Sioux River above Canton gauge located?
The gauge is located in Lincoln County, South Dakota at coordinates 43.3071°N, 96.5283°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of South Dakota DANR
- No forecasts are available for this location
- Gauge reading may be affected by ice.