USGS Water-Year Summary 2024

02034000 RIVANNA RIVER AT PALMYRA, VA

LOCATION - Lat 37°51'28", long 78°15'58" referenced to North American Datum of 1927, Fluvanna County, VA, Hydrologic Unit 02080204, on left bank 300 ft upstream from bridge on U.S. Highway 15 at Palmyra, 0.5 mi upstream from Cunningham Creek, and 15 mi upstream from mouth.

DRAINAGE AREA - 663 mi².

REVISIONS HISTORY - WSP 802: 1936(M). WSP 852: 1937. WSP 892: 1934-35. WSP 1303: 1945-46(M). WSP 1503: 1956. WDR VA-72-1: 1969(M). OFR 2006-1308: Drainage area. WDR VA-11-01: 2008-10(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1933 to current year. Monthly discharge only for some periods, published in WSP 1303.

GAGE - Water-stage recorder. Datum of gage is 209.690  (±0.1)ft above NAVD 88. Prior to Oct. 24, 1942, water-stage recorder at site 200 ft downstream at present datum. Oct. 24, 1942, to Dec. 18, 1947, non-recording gage 10 ft downstream at present datum.

COOPERATION - Records provided by the Virginia Department of Environmental Quality - Water Division.

REMARKS - Some diurnal fluctuation at times mostly at low and medium flow caused by South Fork Rivanna River Reservoir, diversions and discharge upstream at Charlottesville. National Weather Service gage-height telemeter at station. Maximum discharge, 86,000 ft³/s, from rating curve extended above 76,000 ft³/s on basis of contracted-opening measurement of peak flow and velocity-area study.

WATER-QUALITY RECORDS

PERIOD OF RECORD - January 2011 to current year.