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Water-Year Summary for Site 02021500

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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(Mean)  

Water year 2023: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 37°54'26", long 79°25'20" referenced to North American Datum of 1927, Rockbridge County, VA, Hydrologic Unit 02080202, on right bank at Rockbridge Baths, 1,200 ft upstream from bridge on State Highway 39, and 1.0 mi upstream from Hays Creek.
DRAINAGE AREA - 329 mi².
REVISIONS HISTORY - WSP 972: 1929-40, 1941(M). WSP 1002: 1930(m). WSP 1553: 1931(m).
PERIOD OF RECORD - October 1928 to current year. Monthly discharge only for some periods, published in WSP 1303. Prior to October 1945, published as North River at Rockbridge Baths.
GAGE - Water-stage recorder. Datum of gage is 1,099.78 ft NAVD of 1988.
REMARKS - Since 1966, some regulation at times by Lake Merriweather on Little Calfpasture River. National Weather Service gage-height telemeter at station. Maximum discharge, 87,700 ft³/s, from rating curve extended above 16,000 ft³/s on basis of slope-area measurement at peak flow.
PERIOD OF RECORD - October 2006 to April 2009.
PERIOD OF DAILY RECORD - December 2006 to April 2009.
INSTRUMENTATION - Specific conductance and water temperature monitor. Electronic data logger with 15-minute recording interval.
SPECIFIC CONDUCTANCE: Maximum, 259 microsiemens/cm, Feb. 5, 2009; minimum, 43 microsiemens/cm, Mar. 2, 2007.
WATER TEMPERATURE: Maximum, 29.8°C, July 21, 2008; minimum, -0.2°C, on several days.