USGS Streamgage 10080000
Bear River below Grace Dam, near Grace, ID
Bear River below Grace Dam, near Grace, ID is USGS streamgage 10080000 in Idaho, monitoring river discharge in hydrologic subbasin 16010202. It sits on the Bear River, alongside 16 other gauges Rivermatics tracks on the same river. It drains a watershed of about 4,110 square miles. Discharge records at this site go back to 1922. Typical flow runs near 28.8 cfs in July and 16 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Idaho
- Drainage area
- 4,110 sq mi
- Subbasin (HUC-8)
- 16010202
- Coordinates
- 42.5863, -111.73164
- USGS site number
- 10080000
- Records begin
- 1922-04-01 (104 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 104 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 | 2.2 | 9.8 | 69.7 | |
| February | 2 | 10.5 | 70.7 | |
| March | 2.1 | 10.7 | 153.7 | |
| April | 2 | 16 | 489.9 | |
| May | 3.7 | 24.1 | 468.3 | |
| June | 10.1 | 30.1 | 253.5 | |
| July | 6.2 | 28.8 | 296.6 | |
| August | 4.8 | 24.5 | 157.5 | |
| September | 3.8 | 20.4 | 90 | |
| October | 2.7 | 14.1 | 98.8 | |
| November | 2.3 | 10.4 | 101 | |
| December | 2 | 8.8 | 72.6 |
All values in cubic feet per second (cfs).
Common questions
- When does Bear River below Grace Dam, near Grace, ID normally run highest?
- June, on the long-term record. The median daily flow that month is about 30.1 cfs, against 8.8 cfs in December, 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 Grace Dam, near Grace, ID?
- It depends on the month. In January, half of days historically fall near 9.8 cfs, with the middle 80% of days between 2.2 and 69.7 cfs. The month-by-month table on this page gives the full range.
- How long has Bear River below Grace Dam, near Grace, ID been measured?
- Discharge records at USGS site 10080000 begin in 1922, about 104 years, covering roughly 6,263 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Bear River below Grace Dam, near Grace, ID?
- The gauge sits at 42.5863, -111.73164, in Idaho, in hydrologic subbasin 16010202, draining roughly 4,110 square miles.
- Can I use Bear River below Grace Dam, near Grace, ID 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.
- Bear River near Utah-Wyoming State Line 172 sq mi
- Bear River at Evanston, WY 441 sq mi
- Bear River above Reservoir, near Woodruff, UT 755 sq mi
- Bear River below Reservoir, near Woodruff, UT 784 sq mi
- Bear River below Pixley Dam, near Cokeville, WY 2,032 sq mi
- Bear River below Smiths Fork, near Cokeville, WY 2,447 sq mi
- Bear River at Border, WY 2,480 sq mi
- Bear River at Pescadero, ID 3,705 sq mi
- Bear River at Soda Springs, ID 3,970 sq mi
- Bear River at Alexander, ID 4,093 sq mi
- Bear River below Grace Dam, near Grace, ID this page
- Bear River below Upl Tailrace at Oneida, ID 4,456 sq mi
- Bear River at Idaho-Utah State Line 4,884 sq mi
- Bear River near Smithfield, UT 5,193 sq mi
- Bear River near Collinston, UT 6,271 sq mi
- Bear River near Corinne, UT 7,029 sq mi
- Bear River below O-Line Canal near Brigham City, UT