This station is operated in cooperation
National Weather Service
NYS Department of Environmental Conservation
U.S. Army Corps of Engineers - Buffalo District
U.S. Geological Survey
Lat 42°07'20", long 77°57'26"
referenced to North American Datum of 1983, Allegany County, NY,
Hydrologic Unit 04130002, on left bank 35 ft upstream from concrete
weir at Wellsville, 0.5 mi upstream from bridge on State Highway 17,
0.6 mi upstream from Crowner Brook and sewage treatment plant, 0.6 mi
downstream from Dyke Creek, and 140.9 mi upstream from mouth.
PERIOD OF RECORD.--
August 1955 to September 1958, October 1972
to current year. Records for June 1916 to September 1972, published as
Genesee River at Scio (station 04221500) at site 5.2 mi downstream, are
not equivalent because of difference in drainage areas.
WDR NY-82-3: Drainage area.
Water-stage recorder and concrete control. Datum of gage
is 1,470.00 ft above NGVD of 1929. August 1955 to September 1957, at
same site at datum 8.00 ft higher. October 1957 to September 1958,
nonrecording gage at site 0.4 mi upstream at datum 3.00 ft
Records good except those for estimated daily
discharges, which are fair. Telephone and satellite gage-height
telemeters at station.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 22,700
/s, Jan. 19, 1996, gage height, 16.13 ft; minimum
discharge, 11 ft3
/s, Sept. 2, 3, 1991, Aug. 19, Sept. 6,
EXTREMES OUTSIDE PERIOD OF RECORD.--
Maximum discharge since June
1916, 38,500 ft3
/s, June 23, 1972, gage height, 20.7 ft,
present datum, from floodmark, on basis of contracted-opening
measurement of peak flow 0.5 mi downstream.
Derived from NY Annual Water-Data Report 2013
Peak Flow and Stage Information