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USGS 09419800 LV WASH BLW LAKE LAS VEGAS NR BOULDER CITY NV

 

PROVISIONAL DATA SUBJECT TO REVISION
 
 
  STATION.--09419800 LAS VEGAS WASH BELOW LAKE LAS VEGAS NEAR BOULDER CITY, NV
LOCATION.--Lat 36°07'20", long 114°54'15", in NE 1/4 SE 1/4 sec.14, T.21 S., R.63 E., Clark County, Hydrologic Unit 15010015, in Lake Mead Recreation Area, on right bank, under bridge at North Shore Road, and 11.0 mi northeast of Boulder City.
DRAINAGE AREA.--2,193 mi2, of which 1,586 mi2 contributes directly to surface runoff.
PERIOD OF RECORD.--August 1969 to September 1984 (published as "near Boulder City"), July 2002 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,280 ft above NGVD of 1929, from topographic map.
REMARKS.--Discharge includes treated sewage effluent.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 7,760 ft3/s, August 14, 1984, gage height, 11.32 ft, from slope-area measurement of peak flow; minimum daily, 17 ft3/s, July 8, 30, 1971.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 10,800 ft3/s, July 8, 1999, from slope-area measurement of peak flow.
FLOOD FORECAST.--NOAA, National Weather Service river forecast station, accessed on September 10, 2003, at URLhttp://www.cbrfc.noaa.gov/river/station/flowplot/flowplot.cgi?LWVN2
 
 

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Gage height, feet
Most recent value: 4.67   11-19-2004  08:00
Graph of Gage height, feet
Download a presentation-quality graph Parameter Code 00065; DD 01

Discharge, cubic feet per second
Most recent value: 224   11-19-2004  08:00
Graph of Discharge, cubic feet per second
Download a presentation-quality graph Parameter Code 00060; DD 02
Daily mean flow statistics for 11/19 based on 17 years of record in ft3/sec
Current Flow Minimum Mean Maximum 80 percent exceedance 50 percent exceedance 20 percent exceedance
224  53 97.8 240 68.8 89.0 116

Percent exceedance means that 80, 50, or 20 percent of all daily mean flows for 11/19 have been greater than the value shown.
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Retrieved on 2004-11-19 13:41:54 EST
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