USGS Streamgage 11523200
Trinity River Ab Coffee C near Trinity Center, CA
Trinity River Ab Coffee C near Trinity Center, CA is USGS streamgage 11523200 in California, monitoring river discharge in hydrologic subbasin 18010211. It sits on the Trinity River, alongside 3 other gauges Rivermatics tracks on the same river. It drains a watershed of about 149 square miles. Discharge records at this site go back to 1955. Typical flow runs near 78.7 cfs in July and 767.5 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- California
- Drainage area
- 149 sq mi
- Gauge elevation
- 2,540 ft
- Subbasin (HUC-8)
- 18010211
- Coordinates
- 41.11122, -122.70555
- USGS site number
- 11523200
- Records begin
- 1955-12-22 (71 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Trinity River Ab Coffee C near Trinity Center, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 24.3 | 25 | 25.8 | ||
| 24.1 | 25 | 26.1 | ||
| 23.8 | 24.8 | 26 | ||
| 23.4 | 24.5 | 25.7 | ||
| 23.1 | 24.2 | 25.5 | ||
| 22.9 | 24.1 | 25.4 | ||
| 22.6 | 23.9 | 25.3 | ||
| 22.5 | 23.8 | 25.3 | ||
| 22.7 | 24.4 | 26.5 | ||
| 23.3 | 25.4 | 28.3 | ||
| 23.4 | 25.5 | 28.1 | ||
| 23.3 | 25.3 | 27.7 | ||
| 23 | 25 | 27.4 | ||
| 22.8 | 24.8 | 27.2 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 69 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 | 73.6 | 237.6 | 990.4 | |
| February | 127.9 | 355.7 | 1,191.3 | |
| March | 223.1 | 517.4 | 1,244.5 | |
| April | 357.1 | 767.5 | 1,566.7 | |
| May | 282.5 | 855.5 | 2,086.1 | |
| June | 94.9 | 296.9 | 1,164.4 | |
| July | 40.7 | 78.7 | 227.6 | |
| August | 25.7 | 44.7 | 78.1 | |
| September | 23.2 | 36.5 | 57.5 | |
| October | 26.2 | 41.7 | 116.5 | |
| November | 36.4 | 74.8 | 377.9 | |
| December | 47.4 | 146 | 731.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Trinity River Ab Coffee C near Trinity Center, CA normally run highest?
- May, on the long-term record. The median daily flow that month is about 855.5 cfs, against 36.5 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 Trinity River Ab Coffee C near Trinity Center, CA?
- It depends on the month. In January, half of days historically fall near 237.6 cfs, with the middle 80% of days between 73.6 and 990.4 cfs. The month-by-month table on this page gives the full range.
- How long has Trinity River Ab Coffee C near Trinity Center, CA been measured?
- Discharge records at USGS site 11523200 begin in 1955, about 71 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Trinity River Ab Coffee C near Trinity Center, CA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Trinity River Ab Coffee C near Trinity Center, CA?
- The gauge sits at 41.11122, -122.70555, in California, in hydrologic subbasin 18010211, at an elevation of about 2,540 feet, draining roughly 149 square miles.
- Can I use Trinity River Ab Coffee C near Trinity Center, 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.
Upstream and downstream on the Trinity River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Trinity River in full.
- Trinity River Ab Coffee C near Trinity Center, CA this page
- Trinity River below Limekiln Gulch near Douglas City, CA 810 sq mi
- Trinity River Ab NF Trinity River near Helena, CA 1,137 sq mi
- Trinity River near Burnt Ranch, CA 1,439 sq mi