LOCATION.--Lat 43°12'40.2", long
76°17'13.6" referenced to North American Datum of
1983, Oswego County, NY, Hydrologic Unit 04140203, on left bank
behind New York State Canal Corporation maintenance facility,
0.75 mi downstream from confluence of Seneca and Oneida Rivers,
and 1.5 mi south of Phoenix.
DRAINAGE AREA.--4,953 mi².
PERIOD OF RECORD.--October 2007 to current year.
GAGE.--Acoustic velocity meter and water-stage recorder.
Datum of gage is 359.41 ft above NAVD of 1988. Prior to Apr. 1,
2019, at datum 360.00 ft lower.
REMARKS.--Flow regulated by Oswego (Barge) Canal Lock 1
and Eagle Creek Renewable Energy power station. A large amount
of natural storage and some artificial regulation is afforded
by the many large lakes and the Erie (Barge) and Oswego (Barge)
Canal systems in the river basin. Oswego River basin receives
water from Erie (Barge) Canal through Lock 32 near Pittsford.
Water may be diverted into or received from Mohawk River basin
through summit level of Erie (Barge) Canal between New London
and Utica. Nearly all of the flow from 14 mi² of the
Tioughnioga River basin may be diverted into De Ruyter
Reservoir in Oswego River basin.
Water Years 2014-19: Records good except those for estimated
daily discharges, which are fair. Water Year 2020: Records fair
except those for estimated daily discharges and those below
1,000 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge,
26,500 ft³/s, Apr. 29, 2011; minimum daily discharge, 201
ft³/s, Apr. 17, 2012. Maximum and minimum instantaneous
discharges not determined.
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