LOCATION.--Lat 42°19'59.3", long
75°14'03.5" referenced to North American Datum of
1983, Delaware County, NY, Hydrologic Unit 02050101, on right
bank 0.2 mi downstream from bridge on County Highway 44, 0.4 mi
downstream from East Sidney Dam, at East Sidney, and 3.5 mi
upstream from mouth.
DRAINAGE AREA.--103 mi².
PERIOD OF RECORD.--August 1940 to current year.
REVISIONS HISTORY.--WSP 2103: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,086.23
ft above NGVD of 1929 and 1,085.82 ft above NAVD of 1988. Prior
to June 13, 1947, at site 0.5 mi upstream at datum 27.30 ft
higher.
REMARKS.--Since November 1949, flow regulated by East
Sidney Lake (station 01499500).
Water Years 2014-15: Records good except those for estimated
daily discharges, which are fair.
Water Years 2016-23: Records good except those for estimated
daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, since
construction of East Sidney Lake in 1950, 4,000 ft³/s, Apr. 7,
1960, gage height, 6.19 ft; minimum instantaneous discharge not
determined.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of
16,700 ft³/s, in July 1935, was determined by computation of
flow-over-dam measurement of peak flow and from
floodmarks.
EXTREMES FOR PERIOD PRIOR TO REGULATION.--Maximum
discharge, prior to construction of East Sidney Lake in 1950,
7,250 ft³/s, Dec. 30, 1942, gage height, 7.62 ft, site and
datum then in use; minimum daily discharge, 1.2 ft³/s, gage
height, 0.32 ft, Aug. 13, 14, 17, 1949, result of construction;
minimum instantaneous discharge not determined.
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