Major Flood
7 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
6.5 ft
Minor Flood
6 ft
Action Stage
4.5 ft
What Floods at Each Level
7 ft
Major flood stage. Extensive flooding along Nemo Road and Echo Drive.
6.5 ft
Moderate flood stage. Some inundation of structures are possible. Flooding on Nemo Road and Echo Drive.
6 ft
Minor flood stage. Culverts above the gage along Nemo Road are filled with water and water runs over Echo Drive and Nemo Road.
5.5 ft
Water runs through yards and driveways.
4.5 ft
Action stage. Low lying areas along the creek and road begin 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 |
|---|---|---|
| May 16, 2023 | 5.84 ft | 10 cfs |
| Jul 20, 2018 | 5.12 ft | 2 cfs |
| May 27, 2019 | 4.96 ft | 1 cfs |
About This Gauge
USGS Site
NWS LID
ECHS2
River
South Canyon
County
Pennington, SD
Coordinates
44.0928°N, 103.3269°W
Get Flood Alerts for South Canyon
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 South Canyon near Rapid City?
The South Canyon near Rapid City gauge is maintained by USGS (site 06413620) 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 South Canyon near Rapid City?
The NWS-defined flood stage for South Canyon near Rapid City is 6 feet. Action stage begins at 4.5 feet. Moderate flooding starts at 6.5 feet, and major flooding at 7 feet.
How do I get alerts when South Canyon rises?
Download StormCast free on Google Play, go to River Gauges, and add South Canyon near Rapid City 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 South Canyon near Rapid City gauge located?
The gauge is located in Pennington County, South Dakota at coordinates 44.0928°N, 103.3269°W. USGS site number: 06413620. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
Downstream: Rapid Creek at Founders Park
More Resources
Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey
- USGS operates this gage on a seasonal basis. No data are available during winter months.