Rivermatics

USGS Streamgage 10351600

Truckee River below Derby Dam near Wadsworth, NV

Truckee River below Derby Dam near Wadsworth, NV is USGS streamgage 10351600 in Nevada, monitoring river discharge in hydrologic subbasin 16050102. It sits on the Truckee River, alongside 10 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,676 square miles. Discharge records at this site go back to 1909. Typical flow runs near 39.1 cfs in July and 402.1 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, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Nevada
Drainage area
1,676 sq mi
Gauge elevation
4,186 ft
Subbasin (HUC-8)
16050102
Coordinates
39.58463, -119.44129
USGS site number
10351600
Records begin
1909-01-17 (117 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Truckee River below Derby Dam near Wadsworth, 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.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
249 266 282
236 263 287
227 260 293
216 257 297
208 253 299
202 251 301
195 248 301
190 245 303
184 241 301
180 239 302
180 248 330
182 250 330
179 246 324
172 240 319

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 109 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 2.1 139.8 962.4
February 2.6 170 1,625
March 3.2 254.8 1,796.5
April 13.8 402.1 2,445.7
May 21 655.7 2,988.7
June 15.7 226.8 2,200.3
July 14.2 39.1 629.7
August 14.1 32.5 316.9
September 10 34.5 318
October 3 30.6 320.7
November 2 28.5 427.6
December 2.1 57.1 716.6

All values in cubic feet per second (cfs).

Common questions

When does Truckee River below Derby Dam near Wadsworth, NV normally run highest?
May, on the long-term record. The median daily flow that month is about 655.7 cfs, against 28.5 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 Truckee River below Derby Dam near Wadsworth, NV?
It depends on the month. In January, half of days historically fall near 139.8 cfs, with the middle 80% of days between 2.1 and 962.4 cfs. The month-by-month table on this page gives the full range.
How long has Truckee River below Derby Dam near Wadsworth, NV been measured?
Discharge records at USGS site 10351600 begin in 1909, about 117 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 Truckee River below Derby Dam near Wadsworth, 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. A companion model forecasts each day's water-temperature high and low. 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 Truckee River below Derby Dam near Wadsworth, NV?
The gauge sits at 39.58463, -119.44129, in Nevada, in hydrologic subbasin 16050102, at an elevation of about 4,186 feet, draining roughly 1,676 square miles.
Can I use Truckee River below Derby Dam near Wadsworth, 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 Truckee River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Truckee River in full.

Other gauges in this subbasin