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USGS 01435900 NEVERSINK RESERVOIR NEAR NEVERSINK NY

PROVISIONAL DATA SUBJECT TO REVISION

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This station is operated in cooperation with:
   New York City Department of Environmental Protection


LOCATION.--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.
DRAINAGE AREA.--92.5 mi².
PERIOD OF RECORD.--June 1953 to September 2013 (month-end elevations, contents, and diversions). October 2013 to current year (daily observation elevations).
REVISIONS HISTORY.--WDR NY-85-1: Drainage area. WDR NY-82-1: 1976 and 1977-Diversion.
GAGE.--Nonrecording gage. Datum of gage is NGVD of 1929 (levels by Board of Water Supply, City of New York).
COOPERATION.--Elevation record and capacity table provided by New York City Department of Environmental Protection.
REMARKS.--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.

Gage PhotoStation image

 

This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2019-10-31  2020-02-19
2019-10-31  2020-02-19
2019-10-31  2020-02-19
2019-10-31  2020-02-19
2019-10-31  2020-02-19







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius, [at 1,355 ft above NAVD of 1988]

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Temperature, water, degrees Celsius, [at 1,383 ft above NAVD of 1988]

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Temperature, water, degrees Celsius, [at 1,425 ft above NAVD of 1988]

Most recent instantaneous value: 1.7 02-19-2020   20:45 EST
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