LOCATION.--Lat 43°18'41", long
75°06'30" referenced to North American Datum of 1927,
Oneida County, NY, Hydrologic Unit 02020004, on south side of
north gatehouse at Hinckley Dam on West Canada Creek at
Hinckley, and 2.2 mi east of Prospect.
DRAINAGE AREA.--372 mi².
PERIOD OF RECORD.--March 1914 to September 2007
(month-end elevations and contents), October 2007 to September
2013 (daily mean elevations and month-end contents), October
2013 to current year (daily mean elevations). In 2008 water
year, daily mean elevations for April 1996 through September
2008 published.
REVISIONS HISTORY.--WDR NY-85-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is Barge
Canal datum. To convert elevations to NGVD of 1929, subtract
1.04 ft. To convert elevations to NAVD of 1988,
subtract 1.36 ft.
COOPERATION.--Capacity table provided by New York State
Canal Corporation.
REMARKS.--Reservoir is formed by earth and concrete dam;
storage began March 1914. Usable capacity 3,320 mil ft³ between
elevation 1,173.5 and 1,225.0 ft. Elevation of inverts of four
60-inch discharge pipes at north end of spillway is 1,169.5 ft,
and elevation of inverts of two 42-inch pipes at south end for
diverting water to city of Utica is 1,164.25 ft. Crest of ogee
spillway is at elevation 1,225.0 ft. Length of spillway is 400
ft. Area of water surface at crest elevation is 4.46 mi².
Figures given herein represent usable contents. Diversion for
municipal supply of Utica began prior to 1921. Diversion
records (01343899) provided by Mohawk Valley Water Authority.
Capacity table (elevation, in feet, and usable contents, in millions of cubic feet)
Elevation Contents Elevation Contents
1,173.5 0 1,205.0 1,440
1,175.0 27 1,215.0 2,260
1,185.0 306 1,225.0 3,320
1,195.0 787 1,230.0 4,010
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 4,240
mil ft³, Nov. 1, 2019, elevation, 1,231.49 ft; minimum contents
observed, 25 mil ft³, Nov. 17, 1964, elevation, 1,174.9 ft
(from Report to the Governor by the Hinckley Reservoir Working
Group, 2008).
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