USGS Streamgage 11525530
Rush C near Lewiston, CA
Rush C near Lewiston, CA is USGS streamgage 11525530 in California, monitoring river discharge in hydrologic subbasin 18010211. It drains a watershed of about 22 square miles. Discharge records at this site go back to 2002. Typical flow runs near 5 cfs in July and 63.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 22 sq mi
- Gauge elevation
- 1,799 ft
- Subbasin (HUC-8)
- 18010211
- Coordinates
- 40.72456, -122.83471
- USGS site number
- 11525530
- Records begin
- 2002-10-01 (24 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 24 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 | 10.4 | 38.5 | 156.5 | |
| February | 14.9 | 47.4 | 183.4 | |
| March | 16.4 | 61 | 158.6 | |
| April | 20.6 | 63.3 | 136 | |
| May | 13.7 | 60 | 143.2 | |
| June | 3.1 | 23.2 | 87.8 | |
| July | 0.9 | 5 | 22.3 | |
| August | 0.4 | 1.9 | 4.8 | |
| September | 0.5 | 1.6 | 3.3 | |
| October | 1.6 | 3.2 | 18.9 | |
| November | 3.5 | 7.7 | 41.8 | |
| December | 5 | 21.2 | 146.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Rush C near Lewiston, CA normally run highest?
- April, on the long-term record. The median daily flow that month is about 63.3 cfs, against 1.6 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 Rush C near Lewiston, CA?
- It depends on the month. In January, half of days historically fall near 38.5 cfs, with the middle 80% of days between 10.4 and 156.5 cfs. The month-by-month table on this page gives the full range.
- How long has Rush C near Lewiston, CA been measured?
- Discharge records at USGS site 11525530 begin in 2002, about 24 years, covering roughly 8,536 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Rush C near Lewiston, CA?
- The gauge sits at 40.72456, -122.83471, in California, in hydrologic subbasin 18010211, at an elevation of about 1,799 feet, draining roughly 22 square miles.
- Can I use Rush C near Lewiston, 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.
Other gauges in this subbasin
- Trinity River below Limekiln Gulch near Douglas City, CA
- Indian C near Douglas City, CA
- Trinity River A Douglas City, CA
- Trinity River A Junction City, CA
- Trinity River Ab NF Trinity River near Helena, CA
- Trinity River near Burnt Ranch, CA
- Trinity River A Hoopa, CA
- Trinity River Ab Coffee C near Trinity Center, CA