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LOCATION.--Lat 42°36'10", long 76°09'34" 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.
PERIOD OF RECORD.--May 1938 to current year.
REVISIONS HISTORY.--WSP 2103: Drainage area. WDR NY-74-1: 1973.
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 Year 2014-17: Records good except those for estimated daily discharges, which are fair.
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.

Peak Flow and Stage Information

Gage PhotoStation image


This station managed by the NY Water Science Center Ithaca.

Available Parameters Available Period
All 2 Available Parameters for this site
00060 Discharge 1985-10-02  2019-01-24
00065 Gage height 2007-10-01  2019-01-24

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 691 01-24-2019   08:00 EST
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Daily discharge, cubic feet per second -- statistics for Jan 24 based on 80 years of record more
Median Mean Most Recent
Value Jan 24
96.0 246 393 598 691 699 4060

Gage height, feet

Most recent instantaneous value: 4.21 01-24-2019   08:00 EST
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