USGS Streamgage 11525655
Trinity River below Limekiln Gulch near Douglas City, CA
Trinity River below Limekiln Gulch near Douglas City, CA is USGS streamgage 11525655 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 810 square miles. Discharge records at this site go back to 1981. Typical flow runs near 532.1 cfs in July and 664.2 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
- 810 sq mi
- Gauge elevation
- 1,665 ft
- Subbasin (HUC-8)
- 18010211
- Coordinates
- 40.67261, -122.92055
- USGS site number
- 11525655
- Records begin
- 1981-04-28 (45 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Trinity River below Limekiln Gulch near Douglas City, 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 |
|---|---|---|---|---|
| 1,155 | 1,198 | 1,269 | ||
| 1,126 | 1,194 | 1,263 | ||
| 1,079 | 1,188 | 1,261 | ||
| 1,005 | 1,180 | 1,265 | ||
| 872 | 1,177 | 1,280 | ||
| 718 | 1,154 | 1,282 | ||
| 589 | 1,098 | 1,252 | ||
| 537 | 1,042 | 1,221 | ||
| 526 | 1,015 | 1,214 | ||
| 469 | 952 | 1,182 | ||
| 436 | 894 | 1,159 | ||
| 425 | 856 | 1,130 | ||
| 430 | 839 | 1,103 | ||
| 433 | 823 | 1,089 |
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 45 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 | 322.2 | 402.2 | 1,493.8 | |
| February | 324.4 | 412.5 | 1,917.1 | |
| March | 328.7 | 462.3 | 2,214.2 | |
| April | 355.2 | 664.2 | 3,251.3 | |
| May | 420 | 2,001 | 5,168.7 | |
| June | 411.7 | 848.9 | 2,793 | |
| July | 414.6 | 532.1 | 1,295.7 | |
| August | 343 | 466.1 | 914 | |
| September | 314.4 | 461.7 | 897.8 | |
| October | 299.5 | 379.4 | 433.7 | |
| November | 296.3 | 327.9 | 454.9 | |
| December | 308.9 | 354.7 | 1,288.9 |
All values in cubic feet per second (cfs).
Common questions
- When does Trinity River below Limekiln Gulch near Douglas City, CA normally run highest?
- May, on the long-term record. The median daily flow that month is about 2,001 cfs, against 327.9 cfs in November, 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 below Limekiln Gulch near Douglas City, CA?
- It depends on the month. In January, half of days historically fall near 402.2 cfs, with the middle 80% of days between 322.2 and 1,493.8 cfs. The month-by-month table on this page gives the full range.
- How long has Trinity River below Limekiln Gulch near Douglas City, CA been measured?
- Discharge records at USGS site 11525655 begin in 1981, about 45 years, covering roughly 8,710 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 below Limekiln Gulch near Douglas City, 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 below Limekiln Gulch near Douglas City, CA?
- The gauge sits at 40.67261, -122.92055, in California, in hydrologic subbasin 18010211, at an elevation of about 1,665 feet, draining roughly 810 square miles.
- Can I use Trinity River below Limekiln Gulch near Douglas City, 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 149 sq mi
- Trinity River below Limekiln Gulch near Douglas City, CA this page
- Trinity River Ab NF Trinity River near Helena, CA 1,137 sq mi
- Trinity River near Burnt Ranch, CA 1,439 sq mi