USGS Streamgage 11436999
Caples C Release below Caples Dam near Kirkwood, CA
Caples C Release below Caples Dam near Kirkwood, CA is USGS streamgage 11436999 in California, monitoring river discharge in hydrologic subbasin 18020129. It drains a watershed of about 14 square miles. Discharge records at this site go back to 1992. Typical flow runs near 38 cfs in July and 15.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Drainage area
- 14 sq mi
- Subbasin (HUC-8)
- 18020129
- Coordinates
- 38.70852, -120.05157
- USGS site number
- 11436999
- Records begin
- 1992-09-30 (34 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 34 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 | 6.2 | 14.6 | 65.5 | |
| February | 6 | 12.1 | 33.3 | |
| March | 5.8 | 13.5 | 61.8 | |
| April | 7.7 | 15.3 | 66.8 | |
| May | 10.3 | 47.5 | 197.8 | |
| June | 13.2 | 62.4 | 247.3 | |
| July | 7.8 | 38 | 142.2 | |
| August | 9.7 | 34.5 | 64.8 | |
| September | 7.5 | 23.8 | 59.5 | |
| October | 5.6 | 8.3 | 47.8 | |
| November | 5.8 | 10.2 | 60.4 | |
| December | 6 | 12.7 | 51.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Caples C Release below Caples Dam near Kirkwood, CA normally run highest?
- June, on the long-term record. The median daily flow that month is about 62.4 cfs, against 8.3 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Caples C Release below Caples Dam near Kirkwood, CA?
- It depends on the month. In January, half of days historically fall near 14.6 cfs, with the middle 80% of days between 6.2 and 65.5 cfs. The month-by-month table on this page gives the full range.
- How long has Caples C Release below Caples Dam near Kirkwood, CA been measured?
- Discharge records at USGS site 11436999 begin in 1992, about 34 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 Caples C Release below Caples Dam near Kirkwood, CA?
- The gauge sits at 38.70852, -120.05157, in California, in hydrologic subbasin 18020129, draining roughly 14 square miles.
- Can I use Caples C Release below Caples Dam near Kirkwood, 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.