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USGS Water-Year Summary 2024
03165000 CHESTNUT CREEK AT GALAX, VA
LOCATION - Lat 36°38'45", long 80°55'10" referenced to North American Datum of 1927, Galax City, VA, Hydrologic Unit 05050001, on right bank 200 ft upstream from bridge on State Highway 89 and 1.7 mi downstream from Wards Mill Branch.
DRAINAGE AREA - 39.4 mi².
REVISIONS HISTORY - WSP 1385: 1953.
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 1944 to current year.
GAGE - Water-stage recorder. Concrete control since Aug. 30, 1979. Datum of gage is 2,344.17 ft NGVD of 1929. Prior to June 25, 1948, nonrecording gage, and June 25, 1948, to May 28, 1953, water-stage recorder, at site 200 ft upstream, at datum of 2,345.03 ft NGVD of 1929.
REMARKS - Maximum discharge, 6,980 ft³/s, from rating curve extended above 2,200 ft³/s on basis of two slope-area and one contracted-opening measurements at gage heights 9.5 ft, 14.4 ft, and 17.4 ft, respectively, site and datum then in use. Water-quality records for some prior periods have been collected at this location.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Aug. 14, 1940, reached a stage of 17.4 ft, at site and datum used 1944-53, discharge, 11,000 ft³/s, by contracted-opening measurement.
