USGS Water-Year Summary for Site 09419700

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	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

09419700 Las Vegas Wash At Pabco Road Near Henderson, NV

LOCATION - Lat 36°05'15", long 114°59'06" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.30, T.21 S., R.63 E., Clark County, NV, Hydrologic Unit 15010015, on right bank, at low-head dam, 3.5 mi north of Henderson and 6.0 mi upstream from Lake Mead.

DRAINAGE AREA - 2,125 mi² of which 607 mi² probably is noncontributing.

REVISIONS HISTORY - Elevation of gage from beginning of record to 12/12/2018 was 1540.00 ft and was revised on 12/12/2018, based on 2 single-base OPUS-S level 2 surveys.

SURFACE-WATER RECORDS

PERIOD OF RECORD - May 1957 to Sep. 1983 and, Oct. 1984 to Sep. 1988 (published as "near Henderson"), Oct. 2000 to current year.

GAGE - Water-stage recorder and low-head concrete dam. Elevation of gage is 1530.10 ft above NAVD88 from Global Navigation Satellite System survey quality level 1. Prior to Oct. 4, 2000, at several sites and datums within 2.5 mi of current location.

REMARKS - 10/01/2013-09/30/2014: Records fair except for estimated daily discharges, which are poor. 10/01/2014-09/30/2015: Records fair except for estimated daily discharges and discharges above 400 ft³/s, which are poor. 10/01/2015-09/30/2016: Records fair except for estimated daily discharges and discharges above 400 ft³/s, which are poor. 10/01/2016-09/30/2017: Records fair except for discharges above 400 ft³/s, which are poor. 10/01/2017-09/30/2018: Records fair except for discharges above 400 ft³/s, which are poor. 10/01/2018-09/30/2019: Records fair except for discharges above 650 ft³/s, which are poor. 10/01/2019-09/30/2020: Records fair except for discharges above 650 ft³/s, which are poor. 10/01/2020-09/30/2021: Records fair except for discharges above 650 ft³/s and estimated discharges, which are poor. 10/01/2021-09/30/2022: Records fair except for discharges above 650 ft³/s and estimated discharges, which are poor.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 16,600 ft³/s, Aug. 22, 2012, gage height, 9.87 ft; minimum daily, 4.8 ft³/s, Aug. 17, 1960.