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Water-Year Summary for Site USGS 06781600

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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.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00010 Temperature, water(Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
06781600 South Loup River at Arnold, Nebr.
LOCATION - Lat 41°25'22.00", long 100°12'12.16" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 sec.21, T.17 N., R.25 W., Custer County, NE, Hydrologic Unit 10210004, on upstream side of State Highway 92 bridge, 0.5 mi west of Arnold.
DRAINAGE AREA - Not determined.
PERIOD OF RECORD - April 2010 to current year.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 2,686.22 ft above North American Vertical Datum of 1988. Prior to September 26, 2014, datum of gage was 2,685.04 ft above National Geodetic Vertical Datum of 1929.
REMARKS - Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for estimated daily discharges, which are poor, unless otherwise noted.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow 1,430 ft³/s, March 13, 2019, 9.92 ft.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 30.3°C, July 22, 2016; minimum, 0.1°C, several days during winter period. These extremes may have been exceeded during non-measured periods.