USGS Water-Year Summary 2019
02037500 JAMES RIVER NEAR RICHMOND, VA
LOCATION - Lat 37°33'47", long 77°32'50" referenced to North American Datum of 1927, Henrico County, VA, Hydrologic Unit 02080205, on left bank 0.2 mi upstream from Huguenot Memorial Bridge, 0.5 mi southwest of Richmond city limits, 1.7 mi downstream from Bosher Dam, 3.3 mi upstream from Powhite Creek, and at mile 116.6.
DRAINAGE AREA - 6,753 mi².
- WSP 972: 1936(M). WSP 1433: 1951(M). OFR 2006-1308: Drainage area.
PERIOD OF RECORD - October 1934 to current year. Gage-height records collected in vicinity of Mayo's Bridge, at mile 109.5,
1876-1956, and at mile 108.7 since 1957, are contained in reports of the National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 98.82 ft NGVD of 1929.
COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.
EXTREMES FOR PERIOD OF RECORD - Instantaneous low flow, not determined. Lowest daily mean, 10 ft³/s, on many days in 1966, 1968, and 1970, result of diversion.
PERIOD OF RECORD - Water years 1947 to 1956, 1967 to 1969, and 2004 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: October 1948 to September 1951, October 1952 September 1956, and April 1968 to September 1969.
WATER TEMPERATURE: October 1947 to September 1951, October 1952 September 1956, and April 1968 to September 1969.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 470 microseimens/cm, Oct. 22, 1968, but may have been higher during periods of missing record; minimum recorded, 47 microseimens/cm, Aug. 17, 1949, but may have been lower during periods of missing record.
WATER TEMPERATURE: Maximum recorded, 35.0°C, Aug. 23 to 25, 1968, but may have been higher during periods of missing record; minimum recorded, 0.0°C, several days in Jan. and Feb. 1951, 1954, 1956, and 1969, but may have been lower during periods of missing record.