Major Flood
1123 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
This is an NWS forecast point (LID: BSRS2). 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
1119 ft
Minor Flood
1117 ft
Action Stage
1116 ft
What Floods at Each Level
1124.5 ft
South Dakota Highway 50 begins flooding.
1123.5 ft
Iowa Highway 3 begins flooding.
1121 ft
Some farm levees will be overtopped and some farm buildings will be flooded.
1119 ft
Widespread flooding of crop and pasture land begins.
1117 ft
Lower pasture lands begin to flood, and the Millsite Access is flooded.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 22, 2024 | 1128.7 ft | — |
| Jun 17, 2014 | 1125.63 ft | — |
| Mar 15, 2019 | 1124.5 ft | — |
About This Gauge
NWS LID
BSRS2
River
Big Sioux River
County
Union, SD
Coordinates
42.7617°N, 96.6326°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 near Richland?
The Big Sioux River near Richland 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 near Richland?
The NWS-defined flood stage for Big Sioux River near Richland is 1117 feet. Action stage begins at 1116 feet. Moderate flooding starts at 1119 feet, and major flooding at 1123 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 near Richland 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 near Richland gauge located?
The gauge is located in Union County, South Dakota at coordinates 42.7617°N, 96.6326°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Big Sioux River
On This River
More Resources
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.