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Water-Year Summary for Site 09404900

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
09404900 EAST FORK VIRGIN RIVER NEAR SPRINGDALE, UT
LOCATION - Lat 37°09'51", long 112°57'28" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 NW 1/4 sec.02, T.42 S., R.10 W., Washington County, UT, Hydrologic Unit 15010008, Zion National Park, on right bank 0.7 mi upstream from Zion National Park boundary, 1.2 mi upstream from Shunes Creek, 2.7 mi southeast of Springdale, and 3.4 mi south-southeast of Zion National Park headquarters.
DRAINAGE AREA - 343 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1991 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 3,931.22 ft. above NAVD of 1988 from a Level II GNSS survey conducted on March 22, 2021.
REMARKS - Records generally good except estimated discharges which are fair to poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,470 ft³/s, Sep 14, 2015, gage height, 13.24 ft, from rating curve extended above 470 ft³/s on basis of slope-area measurements at gage heights 6.41 ft and 9.70 ft; minimum daily discharge, 26 ft³/s, Sep 14, 15, 2002.