USGS Water-Year Summary 2023

04288500 WATERBURY RESERVOIR NEAR WATERBURY, VT

LOCATION - Lat 44°22'54", long 72°46'13" referenced to North American Datum of 1927, Washington County, VT, Hydrologic Unit 04150403, at dam on Little River, 0.3 mi east of Recreational Highway and Waterbury Dam Road intersection, 2.5 mi upstream of mouth, 2.8 mi north of US Highway 2 and State Highway 100 intersection in Waterbury.

DRAINAGE AREA - 109 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Elevation: September 1937 to current year. September 1937 to September 1938 monthend contents only, published in WSP 1307.

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 0.53 feet from reservoir water-surface elevation data. Prior to December 10, 1938, nonrecording gage at same site and datum.

COOPERATION - Green Mountain Power Company.

REMARKS - Reservoir is formed by earthfill dam completed by U.S. Army Corps of Engineers during summer of 1937 for flood control and storage of water for power. Usable capacity for storage of water for power, 1.58 billion ft³ between elevations 500.0 ft and 592.0 ft, sill of taintor gate; for flood control, 1.23 billion ft³, between elevations 592.0 ft and 617.5 ft, crest of spillway; total usable capacity, 2.81 billion ft³. Elevations below 587 ft may be affected by draw down during periods of regulation.

Capacity table
Elevation, in feet  Contents, in millions of cubic feet
500.0                     0
510.0                  34.8
520.0                  92.6
530.0                 180.8
540.0                 302.7
550.0                 461.7
560.0                 658.8
570.0                 891.9
580.0               1,168.5
590.0               1,505.0
600.0               1,913.4

EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 613.45 ft, May 4, 1940; minimum observed, 501.30 ft, October 16, 1938, July 3, 12, and 13, 1981.