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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01527500 COHOCTON RIVER AT AVOCA, NY
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.
SURFACE-WATER RECORDS
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 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.
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.
