Funding for this site is provided by:
41°49'12", long 74°38'08" referenced to North
American Datum of 1983, Sullivan County, NY, Hydrologic Unit 02040104,
on right bank at downstream end of outlet channel, 1,650 ft downstream
from Neversink Dam and State Highway 55, 2.0 mi southwest of Neversink,
and 2.6 mi upstream from Wynkoop Brook.
PERIOD OF RECORD.--
October 1941 to current year.
WDR NY-72-1: 1961 (M), 1968 (M). WDR NY-82-1:
Water-stage recorder and concrete control. Datum of gage
is 1,255.24 ft above NGVD of 1929 (levels by Board of Water Supply,
City of New York). Prior to Jan. 17, 1953, at site 650 ft downstream at
datum 0.20 ft lower. Jan. 17, 1953 to Apr. 16, 1954, at present site at
datum 0.41 ft higher.
Subsequent to June 1953, entire flow from 92.5
of drainage area controlled by Neversink Reservoir
(station 01435900). Part of flow diverted for New York City municipal
supply. Remainder of flow (except for conservation release and spill)
impounded for release during periods of low flow in the lower Delaware
River basin, as directed by the Delaware River Master. Water Years
2014-15: Records good.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, since
construction of Neversink Reservoir in 1953, 12,300 ft3
Apr. 3, 2005, gage height, 12.99 ft, outside gage height was about 14.8
ft, from floodmark, from rating curve extended above 6,000
/s; no flow for all or part of each day Sept. 22-24, Oct.
EXTREMES FOR PERIOD PRIOR TO REGULATION.--
prior to construction of Neversink Reservoir in 1953, 22,300
/s, Nov. 25, 1950, gage height, 11.23 ft, site and datum
then in use, from rating curve extended above 2,600 ft3
basis of contracted-opening and critical-depth measurements of peak
flow; maximum gage height, 11.65 ft, Sept. 27, 1942, site and datum
then in use.
Peak Flow and Stage Information
USGS provisional real-time discharge data can
differ from NYCDEP discharge data at flows less than 300
ft3/s as a result of debris or other obstructions affecting
the USGS stage-discharge relationship. USGS and NYCDEP data may also
differ as a result of accuracy limitations of the stage-discharge
rating and the release valve ratings. Release valve changes are
recorded at the stream-gaging station after a brief period due to
travel time between the two locations.
More information about provisional data can be found at http://waterdata.usgs.gov/nwis/help/?provisional