Missouri River at Oahe Dam
South Dakota — Water Level & Flood Stage
Located in Stanley County, South Dakota on the Missouri River. Live water level data from USGS gauge 06439980, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
1660 ft
Moderate Flood
1644 ft
Action Stage
1617 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
1617 ft
Base of the exclusive flood control zone
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 25, 2011 | 1619.68 ft | 160,300 cfs |
| Jun 25, 2011 | 1619.68 ft | 160,300 cfs |
| May 30, 2019 | 1618.8 ft | — |
| May 30, 2019 | 1618.8 ft | — |
| Jun 24, 1995 | 1618.71 ft | 48,500 cfs |
About This Gauge
USGS Site
NWS LID
PIES2
River
Missouri River
County
Stanley, SD
Coordinates
44.4583°N, 100.3903°W
Get Flood Alerts for Missouri 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 Missouri River at Oahe Dam?
The Missouri River at Oahe Dam gauge is maintained by USGS (site 06439980) 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 Missouri River at Oahe Dam?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Missouri River rises?
Download StormCast free on Google Play, go to River Gauges, and add Missouri River at Oahe Dam to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Missouri River at Oahe Dam gauge located?
The gauge is located in Stanley County, South Dakota at coordinates 44.4583°N, 100.3903°W. USGS site number: 06439980. 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 U.S. Army Corps of Engineers
- Gauge reading affected by reservoir operations.