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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.
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USGS Water-Year Summary 2024
01509000 TIOUGHNIOGA RIVER AT CORTLAND, NY
LOCATION - Lat 42°36'09.6", long 76°09'33.8" referenced to North American Datum of 1983, Cortland County, NY, Hydrologic Unit 02050102, on right bank at east end of Elm Street at Cortland, 0.4 mi downstream from confluence of East and West Branches.
DRAINAGE AREA - 292 mi². including 14.0 mi², the flow from which may be diverted into DeRuyter Reservoir in Oswego River basin.
REVISIONS HISTORY - WSP 2103: Drainage area. WDR NY-74-1: 1973.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1938 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,084.92 ft above NGVD of 1929 and 1,084.46 ft above NAVD of 1988. Prior to Oct. 1, 1939, at datum 4.00 ft higher. Oct. 1, 1939 to Sept. 30, 1963, at datum 3.00 ft higher.
REMARKS - Diurnal fluctuation at low and medium flow caused by operation of mills on West Branch. Slight diversion from East Branch for operation of Erie (Barge) Canal. Slight diversion from Gate House Pond on West Branch 17 mi upstream from station into Onondaga Creek basin (St. Lawrence River basin).
Water Years 2014-17: Records good except those for estimated daily discharges, which are fair. Water Years 2018-23: Records good except those for estimated daily discharges, which are poor.
Water Years 2014-17: Records good except those for estimated daily discharges, which are fair. Water Years 2018-23: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 14,200 ft³/s, Apr. 3, 2005, gage height, 14.07 ft; minimum discharge, 9.8 ft³/s, Sept. 20, 1939, Sept. 29, 1959.
