USGS Streamgage 06411500
Rapid Creek below Pactola Dam, SD
Rapid Creek below Pactola Dam, SD is USGS streamgage 06411500, monitoring river discharge in hydrologic subbasin 10120110. It drains a watershed of about 321 square miles. Discharge records at this site go back to 1929. Typical flow runs near 79.3 cfs in July and 36.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 321 sq mi
- Gauge elevation
- 4,417 ft
- Subbasin (HUC-8)
- 10120110
- Coordinates
- 44.07665, -103.48213
- USGS site number
- 06411500
- Records begin
- 1929-05-01 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 63 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 | 14.1 | 20.6 | 44.7 | |
| February | 14 | 20 | 44.6 | |
| March | 13.9 | 24.5 | 66.1 | |
| April | 15.3 | 36.3 | 127.8 | |
| May | 20.2 | 66.3 | 240.9 | |
| June | 27.5 | 71.9 | 353.3 | |
| July | 45.5 | 79.3 | 165.6 | |
| August | 38 | 61.5 | 125.3 | |
| September | 25 | 45.9 | 86.7 | |
| October | 13.8 | 22.5 | 62.3 | |
| November | 13.7 | 20.8 | 49.7 | |
| December | 14 | 20.3 | 49.2 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- 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
- Cleghorn Springs at Rapid City, SD