Click
to
hide
Water-Year
Summary
instructions
and
information
- 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.
USGS Water-Year Summary 2024
02054530 ROANOKE RIVER AT GLENVAR, VA
LOCATION - Lat 37°16'04", long 80°08'23" referenced to North American Datum of 1927, Roanoke County, VA, Hydrologic Unit 03010101, on left bank 150 ft downstream from bridge on State Highway 1154(Cunningham Drive), 0.2 mi downstream from mouth of Callahan Branch, 0.3 mi south of Glenvar, and 2.5 mi upstream from mouth of Mill Creek.
DRAINAGE AREA - 281 mi².
REVISIONS HISTORY - OFR 2006-1308: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1991 to current year.
GAGE - Water-stage recorder. Datum of gage is 1063.836±0.1ft above NAVD 88.
COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.
REMARKS - Diversion of water at times upstream from gage. Roanoke County gage-height transmitter at station. Maximum discharge, 19,800 ft³/s, from rating curve extended above 10,900 ft³/s.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 21, 1972, reached a stage of about 20.2 ft, from information by local resident, discharge, about 25,000 ft³/s, from rating curve extended above 10,900 ft³/s.
