Funding for this site is provided by:
42°08'47", long 77°03'27" referenced to North
American Datum of 1983, Steuben County, NY, Hydrologic Unit 02050105,
on right bank adjacent to Corning Glass Works power plant, 500 ft
downstream from Bridge Street, 1.7 mi downstream from Cohocton River,
PERIOD OF RECORD.--
Occasional discharge measurements, water
years 1918, 1946, 1968-69. October 1974 to current year.
WDR NY-78-1: 1976, 1977 (m). WDR NY-83-3: 1982
Water-stage recorder. Datum of gage is 900.00 ft above
NGVD of 1929 and 899.48 ft above NAVD of 1988 (VERTCON).
High flows significantly regulated by upstream
reservoirs. From 1931-98, a large part of flow from 45.5 mi2
of drainage area upstream from Lamoka Lake on Mud Creek, an upstream
tributary, had been diverted into Keuka Lake (Oswego River basin) for
power development. Water Year 2014-16: Records good except those for
estimated daily discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, since
construction of Tioga, Hammond and Cowanesque Lakes in 1979, about
/s, Jan. 19, 1996, gage height, 25.93 ft,
partially obstructed intake; minimum discharge, 95 ft3
Sept. 9, 10, 23, 24, 1991, gage height, 14.30 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Flood of June 23, 1972,
reached a stage of 40.71 ft, from floodmark, discharge, 228,000
/s, from peak flows determined at upstream and downstream
stations adjusted for drainage area and channel storage.
EXTREMES FOR PERIOD PRIOR TO REGULATION.--
prior to construction of Tioga, Hammond and Cowanesque Lakes in 1979,
/s, Sept. 26, 1975, gage height, 32.46 ft;
minimum discharge, 210 ft3
/s, Aug. 29, 1978.
Peak Flow and Stage Information