Rivermatics

USGS Streamgage 11421710

Bear River near Emigrant Gap, CA

Bear River near Emigrant Gap, CA is USGS streamgage 11421710 in California, monitoring river discharge in hydrologic subbasin 18020126. It drains a watershed of about 1 square miles. Discharge records at this site go back to 1987. Typical flow runs near 8.4 cfs in July and 16.1 cfs in April, with the higher of the two arriving in April.

View live conditions →

Gauge details

State
California
Drainage area
1 sq mi
Subbasin (HUC-8)
18020126
Coordinates
39.30629, -120.6791
USGS site number
11421710
Records begin
1987-09-30 (39 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 39 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 6.4 10.8 55
February 7.1 12.5 97.4
March 8.1 16.3 127.9
April 7.7 16.1 141.1
May 6.5 11.8 193
June 6.1 9.5 122.2
July 5.8 8.4 47.3
August 5.9 7.9 14.2
September 6.4 8.8 22.7
October 5.9 8 19.1
November 6 8.4 16.7
December 6.3 9.1 39.4

All values in cubic feet per second (cfs).

Common questions

When does Bear River near Emigrant Gap, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 16.3 cfs, against 7.9 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 near Emigrant Gap, CA?
It depends on the month. In January, half of days historically fall near 10.8 cfs, with the middle 80% of days between 6.4 and 55 cfs. The month-by-month table on this page gives the full range.
How long has Bear River near Emigrant Gap, CA been measured?
Discharge records at USGS site 11421710 begin in 1987, about 39 years, covering roughly 8,624 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Bear River near Emigrant Gap, CA?
The gauge sits at 39.30629, -120.6791, in California, in hydrologic subbasin 18020126, draining roughly 1 square miles.
Can I use Bear River near Emigrant Gap, CA 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.

Other gauges in this subbasin