USGS Streamgage 11409400
Oregon C below Log Cabin Dam near Camptonville, CA
Oregon C below Log Cabin Dam near Camptonville, CA is USGS streamgage 11409400 in California, monitoring river discharge in hydrologic subbasin 18020125. It drains a watershed of about 29 square miles. Discharge records at this site go back to 1968. Typical flow runs near 9 cfs in July and 13.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 29 sq mi
- Gauge elevation
- 1,913 ft
- Subbasin (HUC-8)
- 18020125
- Coordinates
- 39.43934, -121.05912
- USGS site number
- 11409400
- Records begin
- 1968-09-01 (58 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 58 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 | 11.8 | 123.2 | |
| February | 8.4 | 12.4 | 69.2 | |
| March | 8.7 | 13.1 | 78.5 | |
| April | 10.1 | 13.5 | 23 | |
| May | 10.9 | 14.3 | 20.1 | |
| June | 7.6 | 11.8 | 16.1 | |
| July | 3.3 | 9 | 11.5 | |
| August | 1.8 | 5.4 | 10.2 | |
| September | 1.6 | 3.8 | 9.9 | |
| October | 2.1 | 4.9 | 11.2 | |
| November | 3.8 | 9.2 | 15.1 | |
| December | 6.4 | 11.1 | 51.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Oregon C below Log Cabin Dam near Camptonville, CA normally run highest?
- May, on the long-term record. The median daily flow that month is about 14.3 cfs, against 3.8 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 Oregon C below Log Cabin Dam near Camptonville, CA?
- It depends on the month. In January, half of days historically fall near 11.8 cfs, with the middle 80% of days between 6.2 and 123.2 cfs. The month-by-month table on this page gives the full range.
- How long has Oregon C below Log Cabin Dam near Camptonville, CA been measured?
- Discharge records at USGS site 11409400 begin in 1968, about 58 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 Oregon C below Log Cabin Dam near Camptonville, CA?
- The gauge sits at 39.43934, -121.05912, in California, in hydrologic subbasin 18020125, at an elevation of about 1,913 feet, draining roughly 29 square miles.
- Can I use Oregon C below Log Cabin Dam near Camptonville, 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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