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Water-Year Summary for Site 01666500

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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.
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Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 38°19'30", long 78°05'45" referenced to North American Datum of 1927, Madison County, VA, Hydrologic Unit 02080103, on right bank 100 ft upstream from bridge on State Highway 614, 1.1 miles upstream from Great Run, 1.7 miles upstream from mouth and 2.0 miles southeast of Locust Dale, Madison County, and 3.4 miles downstream from Crooked Run.
DRAINAGE AREA - 179 mi².
REVISIONS HISTORY - WSP 1171: 1948(M). WSP 2103: Drainage area.
PERIOD OF RECORD - July 1943 to current year. Prior to October 1965, published as Robertson River near Locust Dale.
GAGE - Water-stage recorder. Datum of gage is 282.64 ± 0.1 ft above NAVD 88.
COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Oct. 15, 1942, reached a stage of 23.9 ft, from floodmarks, discharge, about 44,000 ft³/s.
PERIOD OF RECORD - October 2006 to September 2008.
PERIOD OF DAILY RECORD - October 2006 to September 2008.
COOPERATION - Daily records were provided by the Virginia Department of Environmental Quality - Water Division.
INSTRUMENTATION - Specific conductance and water temperature monitor. Electronic data logger with 15-minute recording interval.
SPECIFIC CONDUCTANCE: Maximum, 157 microsiemens/cm, Sept. 28, 2007; minimum, 38 microsiemens/cm, Nov. 16, 17, 23, 2006.
WATER TEMPERATURE: Maximum, 31.2°C, Aug. 8, 2007; minimum, -0.3°C, on several days.