USGS Streamgage 10323425
Humboldt River at Old US 40 Brg at Dunphy, NV
Humboldt River at Old US 40 Brg at Dunphy, NV is USGS streamgage 10323425 in Nevada, monitoring river discharge in hydrologic subbasin 16040105. It sits on the Humboldt River, alongside 8 other gauges Rivermatics tracks on the same river. It drains a watershed of about 7,470 square miles. Discharge records at this site go back to 1962. Typical flow runs near 161.6 cfs in July and 453.2 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
- Nevada
- Drainage area
- 7,470 sq mi
- Gauge elevation
- 4,620 ft
- Subbasin (HUC-8)
- 16040105
- Coordinates
- 40.70547, -116.53092
- USGS site number
- 10323425
- Records begin
- 1962-02-12 (64 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Humboldt River at Old US 40 Brg at Dunphy, NV. 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 |
|---|---|---|---|---|
| 4.6 | 5.3 | 6 | ||
| 4.3 | 5.3 | 6.2 | ||
| 4.1 | 5.3 | 6.5 | ||
| 3.9 | 5.3 | 6.7 | ||
| 3.8 | 5.4 | 7.1 | ||
| 3.6 | 5.4 | 7.3 | ||
| 3.5 | 5.4 | 7.6 | ||
| 3.4 | 5.4 | 8 | ||
| 3.3 | 5.5 | 8.5 | ||
| 3.2 | 5.6 | 8.9 | ||
| 3.2 | 5.8 | 9.9 | ||
| 3.4 | 6.6 | 11.4 | ||
| 3.9 | 7.6 | 13.2 | ||
| 4.3 | 8.5 | 15 |
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 36 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 | 42.5 | 102.1 | 332.2 | |
| February | 72.5 | 164.9 | 506.3 | |
| March | 110.3 | 341.5 | 1,323.8 | |
| April | 115.9 | 453.2 | 2,113.7 | |
| May | 130.1 | 569 | 2,591 | |
| June | 120.1 | 814.4 | 2,599 | |
| July | 16.3 | 161.6 | 1,022.8 | |
| August | 4.6 | 22.8 | 156.8 | |
| September | 4.2 | 19.3 | 65.8 | |
| October | 11.6 | 39.8 | 100.2 | |
| November | 26.3 | 61.9 | 131.8 | |
| December | 34.9 | 75.8 | 193.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Humboldt River at Old US 40 Brg at Dunphy, NV normally run highest?
- June, on the long-term record. The median daily flow that month is about 814.4 cfs, against 19.3 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 Humboldt River at Old US 40 Brg at Dunphy, NV?
- It depends on the month. In January, half of days historically fall near 102.1 cfs, with the middle 80% of days between 42.5 and 332.2 cfs. The month-by-month table on this page gives the full range.
- How long has Humboldt River at Old US 40 Brg at Dunphy, NV been measured?
- Discharge records at USGS site 10323425 begin in 1962, about 64 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 Humboldt River at Old US 40 Brg at Dunphy, NV?
- 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 Humboldt River at Old US 40 Brg at Dunphy, NV?
- The gauge sits at 40.70547, -116.53092, in Nevada, in hydrologic subbasin 16040105, at an elevation of about 4,620 feet, draining roughly 7,470 square miles.
- Can I use Humboldt River at Old US 40 Brg at Dunphy, NV 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 Humboldt River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Humboldt River in full.
- Humboldt River near Elko, NV 2,779 sq mi
- Humboldt River near Carlin, NV 4,310 sq mi
- Humboldt River at Palisade, NV 5,053 sq mi
- Humboldt River at Old US 40 Brg at Dunphy, NV this page
- Humboldt River at Battle Mountain, NV 11,200 sq mi
- Humboldt River at Comus, NV 12,220 sq mi
- Humboldt River near Rose Creek, NV 15,200 sq mi
- Humboldt River near Imlay, NV 15,504 sq mi
- Humboldt River near Rye Patch, NV 16,100 sq mi