USGS Water-Year Summary 2020
02112250 YADKIN RIVER AT ELKIN, NC
LOCATION - Lat 36°14'25.51", long 80°50'56.98" referenced to North American Datum of 1983, Yadkin County, NC, Hydrologic Unit 03040101, on right bank at upstream side of bridge on U.S. Highway 21 Business (South Bridge Street) at Elkin, 0.2 miles downstream from Elkin River, and 362 miles upstream from mouth of Pee Dee River in Winyah Bay. Prior to January 5, 2011, at site 800 ft downstream.
DRAINAGE AREA - 866 mi².
- WDR NC-80-1: Drainage area. WDR-US-2011: Drainage area.
PERIOD OF RECORD - April 1964 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 865.68 ft above North American Vertical Datum of 1988. Prior to January 5, 2011, at site 800 ft downstream at datum 866.03 ft above North Geodetic Vertical Datum of 1929. Prior to August 28, 1964, nonrecording gage on upstream side of bridge at same datum. U.S. Army Corps of Engineers satellite telemetry at streamgage.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of July 1916 reached a stage of 36.0 ft, from information by North Carolina State Highway Commission. Flood of August 1940 reached a stage of 37.5 ft. A discharge of 172 ft³/s was measured on September 19, 1956.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height for period of record, 24.88 ft, April 10, 1983, from graph based on hourly gage-height readings and floodmark. Maximum instantaneous discharge 29,100 cfs August 17, 1994.