USGS Streamgage 11482500
Redwood C A Orick, CA
Redwood C A Orick, CA is USGS streamgage 11482500 in California, monitoring river discharge in hydrologic subbasin 18010102. It drains a watershed of about 277 square miles. Discharge records at this site go back to 1911. Typical flow runs near 74.1 cfs in July and 930.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 277 sq mi
- Gauge elevation
- 9 ft
- Subbasin (HUC-8)
- 18010102
- Coordinates
- 41.29929, -124.05118
- USGS site number
- 11482500
- Records begin
- 1911-09-01 (115 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 115 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 | 312 | 1,487.1 | 5,566.8 | |
| February | 451.8 | 1,411.7 | 4,671.4 | |
| March | 462.3 | 1,433.5 | 3,936.5 | |
| April | 366.9 | 930.4 | 2,437.7 | |
| May | 210.7 | 432.9 | 1,193.7 | |
| June | 97.8 | 181.6 | 408.1 | |
| July | 40.7 | 74.1 | 130.8 | |
| August | 13.8 | 32.7 | 57.8 | |
| September | 7.1 | 20.7 | 58.4 | |
| October | 9.1 | 34.5 | 255.9 | |
| November | 35.9 | 262.2 | 2,365.4 | |
| December | 129.6 | 1,067.5 | 5,114.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Redwood C A Orick, CA normally run highest?
- January, on the long-term record. The median daily flow that month is about 1,487.1 cfs, against 20.7 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 Redwood C A Orick, CA?
- It depends on the month. In January, half of days historically fall near 1,487.1 cfs, with the middle 80% of days between 312 and 5,566.8 cfs. The month-by-month table on this page gives the full range.
- How long has Redwood C A Orick, CA been measured?
- Discharge records at USGS site 11482500 begin in 1911, about 115 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Redwood C A Orick, CA?
- The gauge sits at 41.29929, -124.05118, in California, in hydrologic subbasin 18010102, at an elevation of about 9 feet, draining roughly 277 square miles.
- Can I use Redwood C A Orick, 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.