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USGS 10296500 W WALKER R NR COLEVILLE, CA

 

PROVISIONAL DATA SUBJECT TO REVISION
 
 
  STATION.--10296500 WEST WALKER RIVER NEAR COLEVILLE, CA
LOCATION.--Lat 38°30'48", long 119°26'56", in NE 1/4 NE 1/4 sec.28, T.8 N., R.23 E., Mono County, Hydrologic Unit 16050302, in Toiyabe National Forest, on left bank, 0.4 mi downstream from Rock Creek, and 5 mi southeast of Coleville.
DRAINAGE AREA.--250 mi2.
PERIOD OF RECORD.--October 1902 to July 1908 (published as West Fork of Walker River near Coleville, 1903, 1905-08 and as Walker River (West Fork) near Coleville, 1904), March 1909 to September 1910, June 1915 to March 1938, May 1957 to current year.
REVISED RECORDS.--WSP 880: 1917 (runoff in acre-ft). WSP 1514: 1918, 1923. WDR NV-80-1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 5,520 ft above NGVD of 1929, from topographic map. See WSP 1927 for history of changes prior to July 25, 1964. July 26, 1964, to January 2, 1997(gage destroyed in 1997 flood) at several sites and datums 2,000 ft downstream from present location, when re-established October 28, 1997, at new datum.
REMARKS.--Station is above diversions except for a few small ranch ditches. Flow slightly regulated by Poore Lake, capacity, 1,200 acre-ft, 17 mi upstream.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,500 ft3/s, January 2, 1997, gage height, 10.23 ft; minimum daily, 14 ft3/s, several days July-September 1924 and September 12, 1977.
FLOOD STAGE.--NOAA, National Weather Service river forecast station flood stage is 9.0 ft, accessed on June 5, 2003, at URL http://www.wrh.noaa.gov/cnrfc/graphical_rvf/clec1.html

Gage height changes occurring August 12-17 are due to thunderstorm events.


  
 

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Discharge, cubic feet per second
Most recent value: 74   11-19-2004  07:00
Graph of Discharge, cubic feet per second
Download a presentation-quality graph Parameter Code 00060; DD 01
Daily mean flow statistics for 11/19 based on 76 years of record in ft3/sec
Current Flow Minimum Mean Maximum 80 percent exceedance 50 percent exceedance 20 percent exceedance
74  18 70.4 248 38.4 59.5 88.6

Percent exceedance means that 80, 50, or 20 percent of all daily mean flows for 11/19 have been greater than the value shown.

Gage height, feet
Most recent value: 4.44   11-19-2004  07:00
Graph of Gage height, feet
Download a presentation-quality graph Parameter Code 00065; DD 02
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Retrieved on 2004-11-19 11:22:29 EST
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