USGS Streamgage 11295230
Beaver Creek below Diversion Dam near Arnold, CA
Beaver Creek below Diversion Dam near Arnold, CA is USGS streamgage 11295230 in California, monitoring river discharge in hydrologic subbasin 18040010. It drains a watershed of about 29 square miles. Discharge records at this site go back to 1990. Typical flow runs near 8.5 cfs in July and 20 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 29 sq mi
- Subbasin (HUC-8)
- 18040010
- Coordinates
- 38.23297, -120.28047
- USGS site number
- 11295230
- Records begin
- 1990-02-01 (36 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 36 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 | 8 | 19.1 | 101.1 | |
| February | 13.4 | 19.9 | 80.8 | |
| March | 18.2 | 20 | 82 | |
| April | 18.3 | 20 | 115 | |
| May | 15.4 | 20 | 174.2 | |
| June | 6.3 | 17.3 | 40.4 | |
| July | 4 | 8.5 | 19.8 | |
| August | 2.3 | 4.9 | 14.8 | |
| September | 2.2 | 4.5 | 10.8 | |
| October | 2.7 | 5.9 | 13 | |
| November | 4.6 | 8.8 | 18.2 | |
| December | 5.9 | 13.2 | 47.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Beaver Creek below Diversion Dam near Arnold, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 20 cfs, against 4.5 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Beaver Creek below Diversion Dam near Arnold, CA?
- It depends on the month. In January, half of days historically fall near 19.1 cfs, with the middle 80% of days between 8 and 101.1 cfs. The month-by-month table on this page gives the full range.
- How long has Beaver Creek below Diversion Dam near Arnold, CA been measured?
- Discharge records at USGS site 11295230 begin in 1990, about 36 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Beaver Creek below Diversion Dam near Arnold, CA?
- The gauge sits at 38.23297, -120.28047, in California, in hydrologic subbasin 18040010, draining roughly 29 square miles.
- Can I use Beaver Creek below Diversion Dam near Arnold, CA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
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- SF Stanislaus River near Long Barn, CA
- Angels C below Murphys Afterbay near Murphys, CA
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