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Water-Year Summary for Site 02062500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 37°02'22.0", long 78°56'44.6" referenced to North American Datum of 1983, Campbell County, VA, Hydrologic Unit 03010102, on left bank at bridge on U.S. Highway 501 at Brookneal, 2.6 mi upstream from Falling River, and at mile 256.2.
DRAINAGE AREA - 2,404 mi².
REVISIONS HISTORY - WSP 892: 1928(M). WSP 972: 1928-34. WSP 1303: 1924-27(M), 1929(M), 1941(M). OFR 2006-1308: Drainage area.
PERIOD OF RECORD - April 1923 to current year.
GAGE - Water-stage recorder. Datum of gage is 351.08 ft NAVD of 1988. Apr. 30, 1923 to Aug. 29, 1929, nonrecording gage, Aug. 30, 1929 to Aug. 15, 1940, water-stage recorder, and Aug. 16 to Oct. 1, 1940, nonrecording gage at site 200 ft downstream, at present datum. Oct. 2, 1940 to Sept. 30, 1941, nonrecording gage at current location and datum. Oct. 1 1941 to Sept. 26, 2012, at site 1,600 ft upstream, at present datum.
REMARKS - Flow regulated since 1962 by Leesville Lake (station 02059400) 40.1 mi upstream and since 1963 by Smith Mountain Lake (station 02057400) 58.1 mi upstream. Statistics of monthly mean data and summary statistics for water years 1924 - 1962 (unregulated flow) are available in previous data books, water years 1991 - 1998. U.S. Army Corps of Engineers satellite gage-height telemeter at station. Maximum discharge, 130,000 ft³/s, at present site, from gage-height relation curve, from rating curve extended above 55,000 ft³/s on basis of slope-area measurement by Geological Survey, unit hydrograph and flood-routing studies by U.S. Army Corps of Engineers, and records for other stations in Roanoke River Basin. Water-quality records for some prior periods have been collected at this location.
EXTREMES FOR PERIOD PRIOR TO REGULATION - 1924-62: Maximum peak flow, 130,000 ft³/s, Aug. 15, 1940, gage height, 46.50 ft. Instantaneous low flow, probably less than 191 ft³/s, probably occurred Sept. 1, 2, 1932.