USGS Streamgage 06410500
Rapid Creek above Pactola Reservoir at Silver City, SD
Rapid Creek above Pactola Reservoir at Silver City, SD is USGS streamgage 06410500, monitoring river discharge in hydrologic subbasin 10120110. It drains a watershed of about 293 square miles. Discharge records at this site go back to 1953. Typical flow runs near 46.3 cfs in July and 55.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 293 sq mi
- Gauge elevation
- 4,660 ft
- Subbasin (HUC-8)
- 10120110
- Coordinates
- 44.08471, -103.58047
- USGS site number
- 06410500
- Records begin
- 1953-10-01 (73 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 73 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 9.5 | 17.9 | 49.9 | |
| February | 10.2 | 21 | 50.2 | |
| March | 14.4 | 32.5 | 68.4 | |
| April | 28.8 | 55.7 | 140.1 | |
| May | 32.3 | 68.7 | 218.1 | |
| June | 26 | 64 | 264.1 | |
| July | 21.6 | 46.3 | 139.2 | |
| August | 20.1 | 38.9 | 93.6 | |
| September | 19.2 | 34 | 67.1 | |
| October | 16.6 | 29.2 | 65.5 | |
| November | 12.8 | 22.1 | 53.8 | |
| December | 10.1 | 19 | 47.7 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Rapid Creek below Pactola Dam, SD
- Rapid Creek above Johnson Siding below Pactola Dam, SD
- Rapid Creek at Big Bend near Rapid City, SD
- Rapid Creek above Victoria Creek near Rapid City, SD
- Victoria Creek above Victoria Dam near Rapid City, SD
- Victoria Creek below Victoria Dam near Rapid City, SD
- Rapid Creek above Canyon Lake near Rapid City, SD
- Wild Irishman Gulch near Rapid City, SD