Funding for this site is provided by:
43°18'57", long 73°55'39" referenced to North
American Datum of 1927, Saratoga County, NY, Hydrologic Unit 02020002,
800 ft upstream from right end of Conklingville Dam on Sacandaga River
PERIOD OF RECORD.--
January 1930 to current year. Prior to
October 1969, published as "Sacandaga Reservoir at
Water-stage recorder. Datum of gage is NGVD of 1929,
adjustment of 1912. Prior to Apr. 23, 1930, nonrecording gage at same
datum in outlet channel 800 ft downstream.
Supplemental elevation record and capacity table
provided by Board of Hudson River-Black River Regulating
Reservoir is formed by earth and concrete dam; storage
began in March 1930; dam completed in 1930. Usable capacity for stream
regulation, 29.920 bil ft³ between elevations 740.0 ft and 771.0 ft
(spillway crest). Elevation of inverts of three Dow valves is 699.0 ft.
Capacity of 7.800 bil ft³ below elevation 740.0 ft is considered dead
storage, except for extraordinary emergencies or for necessary
inspection of structures. Figures given herein represent total
contents. Purpose of reservoir is to provide flood control and
low-water stream regulation for sanitary improvement, navigation, and
power, as required by the public welfare, including public health and
safety. Area of water surface of reservoir filled to capacity,
elevation 771.0 ft, is 41.7 mi².
Capacity table (elevation, in feet, and total contents, in billions of cubic feet)
Elevation Contents Elevation Contents
738.0 6.43 760.0 25.61
740.0 7.80 764.0 29.85
745.0 11.64 768.0 34.27
750.0 15.94 771.0 37.72
755.0 20.61 774.0 41.26
EXTREMES FOR PERIOD OF RECORD.--
Maximum elevation, 774.47 ft,
May 1, 2011, contents, 41.824 bil ft³; minimum elevation since first
filling, 729.55 ft, Mar. 30, 1940, contents, 2.100 bil ft³.
Peak Flow and Stage Information
Additional graph available (click on graph or name):
Hudson River Salt-Front information.