This station is operated in cooperation
New York City Department of Environmental
Lat 41°49'40.4", long 74°38'20.1"
referenced to North American Datum of 1983, Sullivan County, NY,
Hydrologic Unit 02040104, at a gatehouse at Neversink Dam on Neversink
River, and 2 mi southwest of Neversink.
PERIOD OF RECORD.--
June 1953 to September 2013 (month-end
elevations, contents, and diversions). October 2013 to current year
(daily observation elevations).
WDR NY-85-1: Drainage area. WDR NY-82-1:
1976 and 1977-Diversion.
Nonrecording gage. Datum of gage is NGVD of 1929 (levels
by Board of Water Supply, City of New York).
Elevation record and capacity table provided by
New York City Department of Environmental Protection.
Reservoir is formed by an earthfill rockfaced dam.
Storage began June 2, 1953. Usable capacity 34,941 mil gal between
minimum operating level, elevation 1,319.0 ft, and crest of spillway,
elevation 1,440.0 ft. Capacity at crest of spillway 37,146 mil gal; at
minimum operating level, 2,205 mil gal; dead storage below diversion
sill and outlet sill, elevation 1,314.0 ft, 1,680 mil gal. Figures
given herein represent total contents. Reservoir impounds water for
diversion (01435800) through Neversink-Grahamsville Tunnel to Rondout
Reservoir on Rondout Creek, in Hudson River basin, for water supply of
City of New York; for release during periods of low flow in the lower
Delaware River basin, as directed by the Delaware River Master; and for
conservation release. No diversion prior to Dec. 3, 1953.
Capacity table (elevation, in feet, and total contents, in millions of gallons)
Elevation Contents Elevation Contents
1,314.0 1,680 1,390.0 17,011
1,330.0 3,544 1,410.0 24,023
1,350.0 6,901 1,430.0 32,400
1,370.0 11,370 1,445.0 39,666
EXTREMES FOR PERIOD OF RECORD.--
Maximum contents observed,
38,983 mil gal, Apr. 3, 2005, elevation, 1,443.66 ft; minimum contents
observed (after first filling), 1,985 mil gal, Nov. 25, 1964,
elevation, 1,316.98 ft.
Radar elevation may correspond to top of ice
during winter periods.