USGS Streamgage 10020300
Bear River below Reservoir, near Woodruff, UT
Bear River below Reservoir, near Woodruff, UT is USGS streamgage 10020300 in Wyoming, monitoring river discharge in hydrologic subbasin 16010101. It drains a watershed of about 784 square miles. Discharge records at this site go back to 1961. Typical flow runs near 164.2 cfs in July and 120 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 784 sq mi
- Gauge elevation
- 6,403 ft
- Subbasin (HUC-8)
- 16010101
- Coordinates
- 41.50548, -111.01466
- USGS site number
- 10020300
- Records begin
- 1961-10-01 (65 years)
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.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 10.5 | 20 | 98.7 | |
| February | 10.4 | 20.2 | 110.6 | |
| March | 9.6 | 21.8 | 250 | |
| April | 12.2 | 120 | 641.1 | |
| May | 174.2 | 681.1 | 1,321.3 | |
| June | 345 | 828.7 | 1,581.3 | |
| July | 31.7 | 164.2 | 571.1 | |
| August | 9.7 | 38.3 | 170 | |
| September | 9.5 | 28 | 155.6 | |
| October | 6.8 | 19 | 162.4 | |
| November | 7.8 | 18.8 | 116.7 | |
| December | 10.5 | 20.9 | 102.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Bear River below Reservoir, near Woodruff, UT normally run highest?
- June, on the long-term record. The median daily flow that month is about 828.7 cfs, against 18.8 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 Bear River below Reservoir, near Woodruff, UT?
- It depends on the month. In January, half of days historically fall near 20 cfs, with the middle 80% of days between 10.5 and 98.7 cfs. The month-by-month table on this page gives the full range.
- How long has Bear River below Reservoir, near Woodruff, UT been measured?
- Discharge records at USGS site 10020300 begin in 1961, about 65 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Bear River below Reservoir, near Woodruff, UT?
- The gauge sits at 41.50548, -111.01466, in Wyoming, in hydrologic subbasin 16010101, at an elevation of about 6,403 feet, draining roughly 784 square miles.
- Can I use Bear River below 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.