RIVER GAUGE · SOUTH CANYON
South Canyon near Rapid City
Pennington County, South Dakota
Water level3.56 ft
Flow0 cfs
Last readingSep 16, 2026, 4:45 PM UTC (last recorded)
Action4.5 ft
Minor flood6 ft
Moderate flood6.5 ft
Major flood7 ft
The past week
Loading chart…
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.
Highest crests on record
| Date | Level | 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 |
More on South Canyon
DownstreamRapid Creek at Founders Park
Get an alert when South Canyon 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.

