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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
09419756 Las Vegas Wash Overflow At Lake Las Vegas Inlet
LOCATION - Lat 36°06'09", long 114°56'01" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.22, T.21 S., R.63 E., Clark County, NV, Hydrologic Unit 15010015, on right end of weir at Lake Las Vegas Inlet structure, about 3.5 mi northeast of Henderson.
DRAINAGE AREA - 2,190 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1991 to current year.
GAGE - Datum of gage is 1392.12 ft above NAVD of 1988. The NAVD of 1988 datum was determined by a level 2 GNSS survey (Reference Frame NAD_83 (2011) (EPOCH:2010.0000), GEOID18) by USGS on February 10, 2020 and tied to RM9. Prior to February 10, 2020, the gage datum was 1400 ft above NGVD of 1929 as determined via topographic map by USGS on January 5, 1995.
REMARKS - Records fair except for estimated discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 17,000 ft³/s, Jul. 8, 1999, gage height, 40.04 ft; minimum daily, 0.0 ft³/s, many days, many years.
