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Water-Year Summary for Site USGS 06801000

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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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Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2018: 2017-10-01 to 2018-09-30
 

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USGS Water-Year Summary 2018
06801000 Platte River near Ashland, Nebr.
LOCATION - Lat 41°03'44", long 96°19'29" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 sec.29, T.13 N., R.10 E., Sarpy County, NE, Hydrologic Unit 10200202, on left bank, 35 ft northeast of upstream side of Highway 6 bridge, 3 mi northeast of Ashland, 2 mi upstream from Salt Creek, and at mile 27.9.
DRAINAGE AREA - 83,600 mi² of which 14,300 mi² probably is noncontributing.
REVISIONS HISTORY - WDR NE-94-1: 1993 (M). WDR-US-2010: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 1928 to May 1953, July 1988 to current year.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 1,040.00 ft above sea level. Prior to Oct. 1, 1929, chain gage at former highway bridge 0.5 mi upstream at datum 15.83 ft higher. Oct. 1, 1929 to Oct. 7, 1933, staff or chain gage at former highway bridge 0.5 mi upstream at datum 14.79 ft higher. Oct. 14, 1933 to Dec. 10, 1938, water-stage recorder at site 950 ft upstream from former bridge at datum 14.79 ft higher. Dec. 11, 1938 to June 16, 1948, water-stage recorder at former highway bridge 0.5 mi upstream at datum 14.79 ft higher. June 17, 1948 to May 11, 1953, 0.5 mi downstream of Highway 6 bridge at datum 12.51 ft higher.
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 fair except for estimated daily discharges, which are poor, unless otherwise noted. Natural flow of stream affected by transmountain diversions, storage reservoirs, power developments, groundwater withdrawals, diversions for irrigation, and return flow from irrigated areas.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 130,000 ft³/s, March 10, 1993, estimated, includes overbank flow, gage height, 19.23 ft, backwater from ice. Maximum peak stage, 23.05 ft, February 20, 1997, backwater from ice.