This station is operated in cooperation
U.S. Geological Survey
LOCATION.--Lat 42°36'10", long 76°09'35"
referenced to North American Datum of 1927, 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
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.
REVISED RECORDS.--WSP 2103: Drainage area. WDR NY-74-1:
GAGE.--Water-stage recorder. Datum of gage is 1,084.92 ft above
NGVD of 1929. Prior to Oct. 1, 1939, water-stage recorder at datum 4.00
ft higher; Oct. 1, 1939 to Sept. 30, 1963, water-stage recorder at
datum 3.00 ft higher.
REMARKS.--Records good except those for estimated daily
discharges, which are fair. Diurnal fluctuation at low and medium flow
caused by powerplants in 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) for manufacturing
purposes by Linden Chlorine Process Co. Telephone and satellite
gage-height telemeters at station.
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.
Derived from NY Annual Water-Data Report 2011
Peak Flow and Stage Information
This station managed by the NY Water Science Center, Ithaca.