Rivermatics

USGS Streamgage 10020100

Bear River above Reservoir, near Woodruff, UT

Bear River above Reservoir, near Woodruff, UT is USGS streamgage 10020100 in Wyoming, monitoring river discharge in hydrologic subbasin 16010101. It sits on the Bear River, alongside 16 other gauges Rivermatics tracks on the same river. It drains a watershed of about 755 square miles. Discharge records at this site go back to 1961. Typical flow runs near 52.9 cfs in July and 245.3 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
Wyoming
Drainage area
755 sq mi
Gauge elevation
6,465 ft
Subbasin (HUC-8)
16010101
Coordinates
41.43439, -111.01769
USGS site number
10020100
Records begin
1961-10-01 (65 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Bear River above Reservoir, near Woodruff, UT. 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
22.6 27.6 36.9
26 43.8 108
31.4 64.7 165
32.7 67.9 151
29.3 57 120
26.7 48.9 95.7
24.7 44.7 83.6
22.1 39.5 70.3
20 36.3 63.8
18 33.3 59.3
16.4 31.3 55.6
15.4 31 57.4
16.3 32.4 60.2
16.2 32.5 60

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 65 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 17.8 54.5 101.9
February 23.6 59.4 114.5
March 38.6 106.7 295.9
April 81.5 245.3 614.3
May 214.1 638.4 1,458.2
June 101.5 580.5 1,679
July 7.7 52.9 529.5
August 2.4 22.3 128.5
September 2.8 25.5 105.8
October 3.8 30.9 153.7
November 6.6 39.4 139.6
December 14.8 51.7 115.4

All values in cubic feet per second (cfs).

Common questions

When does Bear River above Reservoir, near Woodruff, UT normally run highest?
May, on the long-term record. The median daily flow that month is about 638.4 cfs, against 22.3 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Bear River above Reservoir, near Woodruff, UT?
It depends on the month. In January, half of days historically fall near 54.5 cfs, with the middle 80% of days between 17.8 and 101.9 cfs. The month-by-month table on this page gives the full range.
How long has Bear River above Reservoir, near Woodruff, UT been measured?
Discharge records at USGS site 10020100 begin in 1961, about 65 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 Bear River above Reservoir, near Woodruff, UT?
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 Bear River above Reservoir, near Woodruff, UT?
The gauge sits at 41.43439, -111.01769, in Wyoming, in hydrologic subbasin 16010101, at an elevation of about 6,465 feet, draining roughly 755 square miles.
Can I use Bear River above Reservoir, near Woodruff, UT 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 Bear River

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

Other gauges in this subbasin