Funding for this site is provided by:
42°55'04", long 77°45'26" referenced to North
American Datum of 1983, Livingston County, NY, Hydrologic Unit
04130003, on right bank 250 ft downstream from bridge on U.S. Highway
20 (State Highway 5), 0.3 mi west of Avon, 0.8 mi downstream from
Conesus Creek, and 35.6 mi upstream from mouth.
PERIOD OF RECORD.--
August 1955 to current year.
WDR NY-82-3: Drainage area.
Water-stage recorder. Datum of gage is 500.11 ft above
NGVD of 1929.
Diurnal fluctuation at low flow caused by powerplant.
Flow regulated to some extent by Rushford Lake from July 1928 to
November 1951, and at high flows by Mount Morris Lake (station
04224000) since November 1951 and by Conesus Lake (station 04227980).
Monthly figures of discharge and runoff August 1955 to September 1965
adjusted for change in contents in Rushford Lake and Mount Morris Lake.
Water Years 2014-15: Records good except those for estimated daily
discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 16,500
/s, June 25, 1972, gage height 40.67 ft; minimum
discharge, 47 ft3
/s, Oct. 10, 11, 1980, gage height, 13.70
Peak Flow and Stage Information