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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
02161000 BROAD RIVER AT ALSTON, SC
LOCATION - Lat 34°14'35", long 81°19'11" referenced to North American Datum of 1927, Fairfield County, SC, Hydrologic Unit 03050106, on left bank at Southern Railway Alston-Peak trestle, 1.2 mi downstream from Parr Shoals Dam, and at mile 200.2.
DRAINAGE AREA - 4,790 mi².
REVISIONS HISTORY -
WRD SC-82-1: 1982(M).
Gage datum was revised on January 31, 2022, based on an error in the determination of the original gage datum.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1896 to December 1907, October 1980 to current year.
GAGE - Data collection platform. Datum of gage is 211.26 ft above NAVD of 1988. Oct. 1, 1896 to Dec. 31, 1907, nonrecording gage at same site at different datum.
REMARKS - Gage-height records are generally good to fair. Discharge records are generally good to 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-sc_nwisweb_data_inquiries@usgs.gov.
EXTREMES FOR PERIOD OF RECORD - Maximum instantaneous discharge, 140,000 cfs, Jun. 7, 1903. Maximum instantaneous gage height, 29.02 ft, Jun. 7, 1903, at gage datum then in use. Minimum daily mean discharge, 48.3 cfs, Sep. 12, 2002.
