This station is operated in cooperation
Hudson River-Black River Regulating
Lat 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 at Conklingville.
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.
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. 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
. Satellite and
telephone gage-height telemeter at station.
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
Peak Flow and Stage Information
Additional graph available (click on graph or name):
Hudson River Salt-Front information.