LOCATION.--Lat 42°24'39.8", long
77°25'34.9" referenced to North American Datum of
1983, Steuben County, NY, Hydrologic Unit 02050105, on left
bank just downstream from bridge on State Highway 415, 0.2 mi
north of Avoca, 1.6 mi upstream from Goff Creek, and 6.4 mi
north of Bath.
DRAINAGE AREA.--152 mi².
PERIOD OF RECORD.--May 1938 to September 1945, June 1996
to September 1997, June 2001 to current year.
GAGE.--Water-stage recorder. Datum of gage is 1,182.75
ft above NGVD of 1929 and 1,182.30 ft above NAVD of 1988. May
16, 1938 to Sept. 30, 1945, at site 4,200 ft downstream at
datum 2.75 ft lower.
REMARKS.--Water Years 2014-23: Records good except those
for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,300
ft³/s, May 16, 2014, gage height, 6.35 ft; maximum gage height,
8.88 ft, Mar. 17, 1942, site and datum then in use; minimum
discharge, 6.5 ft³/s, Sept. 28, 1941.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of June 23,
1972, reached a discharge of 13,300 ft³/s, on basis of
contracted-opening measurement of peak flow.