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USGS Water-Year Summary 2024
04283500 EAST BARRE DETENTION RESERVOIR AT EAST BARRE, VT
LOCATION - Lat 44°09'18", long 72°26'42" referenced to North American Datum of 1927, Washington County, VT, Hydrologic Unit 04150403, at dam on Jail Branch at East Barre, 4.5 mi upstream from mouth.
DRAINAGE AREA - 38.8 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1936 (in WSP 1307), March and April 1936 (in WSP 798), May 1936 to August 1938 (in WSP 1307), September 1938 (in WSP 867), and October 1938 to September 2008 (monthend readings only). October 2008 to current year.
GAGE - Water-stage recorder. Datum of gage presented here is at National Geodetic Vertical Datum of 1929. To obtain water-surface elevation above North American Vertical Datum of 1988 subtract 0.24 feet from reservoir water-surface elevation data. Prior to August 30, 1960, nonrecording gage, and August 30 to September 30, 1960, water-stage recorder, at present site at datum 1,127.9 ft above National Geodetic Vertical Datum of 1929.
COOPERATION - Vermont Department of Environmental Conservation.
REMARKS - Reservoir is formed by earthfill dam completed by U.S. Army Corps of Engineers in 1935 for flood control. Usable capacity, 529 million ft³ between elevation 1,124.9 ft (bottom of outlet opening) and 1,165.0 ft (crest of spillway). Dam has no gates; below elevation 1,165.0 ft, outflow from reservoir is dependent on capacity of outlet opening near base of dam. Outlet-opening enlargement and reservoir-construction modifications completed in November 1959. Size of opening since enlargement, height, 7 ft and average width, 3.7 ft. Figures given herein represent usable contents, determined from capacity tables furnished by U.S. Army Corps of Engineers.
Usable Capacity table Elevation, in feet Contents, in millions of cubic feet 1,125.0 0.1 1,130.0 5.6 1,135.0 13.2 1,140.0 34.9 1,145.0 86.1 1,150.0 165.5 1,155.0 268.0 1,160.0 390.0 1,165.0 529.0
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 1,163.9 ft, present datum, March 22, 1936; minimum not determined.
