USGS Streamgage 09169500
Dolores River at Bedrock, CO
Dolores River at Bedrock, CO is USGS streamgage 09169500 in Colorado, monitoring river discharge in hydrologic subbasin 14030002. It drains a watershed of about 2,025 square miles. Discharge records at this site go back to 1917. Typical flow runs near 63.9 cfs in July and 156.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Colorado
- Drainage area
- 2,025 sq mi
- Gauge elevation
- 4,964 ft
- Subbasin (HUC-8)
- 14030002
- Coordinates
- 38.31027, -108.88538
- USGS site number
- 09169500
- Records begin
- 1917-10-01 (109 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 42 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 | 22.9 | 40.7 | 82.7 | |
| February | 28.8 | 47.9 | 115.9 | |
| March | 35.1 | 74.4 | 433.9 | |
| April | 29.4 | 156.1 | 1,734.5 | |
| May | 22.1 | 190.3 | 2,719 | |
| June | 6.9 | 107.9 | 1,363 | |
| July | 11.6 | 63.9 | 232.4 | |
| August | 16.9 | 67.5 | 174.1 | |
| September | 16.2 | 50.4 | 160.1 | |
| October | 21.5 | 48.2 | 126 | |
| November | 25.4 | 43 | 86.3 | |
| December | 22.1 | 38.9 | 80.9 |
All values in cubic feet per second (cfs).