Rivermatics

USGS Streamgage 11414170

Drum Cn A Tunnel Outlet near Emigrant Gap, CA

Drum Cn A Tunnel Outlet near Emigrant Gap, CA is USGS streamgage 11414170 in California, monitoring river discharge in hydrologic subbasin 18020125. Discharge records at this site go back to 1964. Typical flow runs near 636.6 cfs in July and 686.5 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Subbasin (HUC-8)
18020125
Coordinates
39.3174, -120.65327
USGS site number
11414170
Records begin
1964-10-01 (62 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 61 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 105.4 441.1 783.5
February 85.1 440.8 801.4
March 72.3 498.2 816.6
April 71.5 686.5 834.9
May 218.6 750 839.9
June 242.8 691 839.3
July 283 636.6 808.3
August 296.1 595.9 776.9
September 37.1 261.9 734.6
October 5.1 333.5 737.1
November 49.1 396.9 747.9
December 116.1 417.8 767.7

All values in cubic feet per second (cfs).

Common questions

When does Drum Cn A Tunnel Outlet near Emigrant Gap, CA normally run highest?
May, on the long-term record. The median daily flow that month is about 750 cfs, against 261.9 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Drum Cn A Tunnel Outlet near Emigrant Gap, CA?
It depends on the month. In January, half of days historically fall near 441.1 cfs, with the middle 80% of days between 105.4 and 783.5 cfs. The month-by-month table on this page gives the full range.
How long has Drum Cn A Tunnel Outlet near Emigrant Gap, CA been measured?
Discharge records at USGS site 11414170 begin in 1964, about 62 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Drum Cn A Tunnel Outlet near Emigrant Gap, CA?
The gauge sits at 39.3174, -120.65327, in California, in hydrologic subbasin 18020125.
Can I use Drum Cn A Tunnel Outlet 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