USGS Streamgage 06482610
Split Rock Creek at Corson, SD
Split Rock Creek at Corson, SD is USGS streamgage 06482610, monitoring river discharge in hydrologic subbasin 10170203. It drains a watershed of about 482 square miles. Discharge records at this site go back to 1965. Typical flow runs near 51.4 cfs in July and 117.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 482 sq mi
- Gauge elevation
- 1,307 ft
- Subbasin (HUC-8)
- 10170203
- Coordinates
- 43.61637, -96.56532
- USGS site number
- 06482610
- Records begin
- 1965-10-01 (61 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 61 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 | 3.8 | 20.7 | 82.4 | |
| February | 4.1 | 22.4 | 131.6 | |
| March | 16.3 | 94 | 817.9 | |
| April | 30.5 | 117.1 | 779.3 | |
| May | 18.4 | 99.7 | 499.5 | |
| June | 9.6 | 93.1 | 635.7 | |
| July | 5.6 | 51.4 | 340.9 | |
| August | 4.5 | 26 | 181.1 | |
| September | 4.2 | 21.1 | 189.1 | |
| October | 6 | 25.9 | 273.3 | |
| November | 8 | 29.6 | 170.3 | |
| December | 7.3 | 26.2 | 123.3 |
All values in cubic feet per second (cfs).