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Water-Year Summary for Site 02111500

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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
00060 Discharge(Max.,Min.,Mean)  
00065 Gage height(Max.,Min.,Mean)  

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

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USGS Water-Year Summary 2023
LOCATION - Lat 36°10'30", long 81°10'08" referenced to North American Datum of 1983, Wilkes County, NC, Hydrologic Unit 03040101, On left bank 550 ft upstream from bridge on Secondary Road 1517, 1.2 mi northwest of North Wilkesboro, 1.4 mi upstream from North Wilkesboro municipal dam, and 2.3 mi upstream from mouth.
DRAINAGE AREA - 89.2 mi².
REVISIONS HISTORY - WSP 1433: 1944. WDR NC-80-1: Drainage area.
PERIOD OF RECORD - October 1939 to current year. Monthly discharge only for some periods, published in WSP 1303.
GAGE - Water-stage recorder. Datum of gage is 978.08 ft above North American Vertical Datum of 1988. Satellite telemetry at streamgage.  

Slight diurnal fluctuation at low flow during growing season.

Gage-height records are generally good. Discharge records are generally fair except for estimated discharges, which are poor.  Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-nc_nwisweb_data_inquiries@usgs.gov.


EXTREMES FOR PERIOD OF RECORD - Maximum discharge from rating curve extended above 5,600 ft³/s on basis of computation of peak flow over dam; gage height: 22.02 ft. Maximum instantaneous discharge, 27,000cfs, Aug 14, 1940. Maximum instantaneous gage height, 22.02 ft, Aug 14, 1940.