LOCATION.--Lat 43°21'11.9", long
78°11'35.0" referenced to North American Datum of
1983, Orleans County, NY, Hydrologic Unit 04130001, on left
bank on downstream end of abandoned bridge pier of Oak Orchard
River Road bridge, 4.0 mi downstream from Waterport Reservoir
Dam, 1.7 mi upstream from mouth into Lake Ontario, and 7.4 mi
north of Albion.
DRAINAGE AREA.--272 mi².
PERIOD OF RECORD.--September 2020 to current year.
GAGE.--Acoustic velocity meter and water-stage recorder.
Datum of gage is 229.39 ft above NAVD of 1988 and 229.32 ft
above IGLD of 1985.
REMARKS.--Flow regulated to some extent by Waterport
hydroelectric reservoir 4.0 mi upstream from station and from
Glenwood Lake hydroelectric reservoir 18.3 mi upstream from
station. Discharge includes undetermined diversion from Erie
(Barge) Canal, 14.8 mi upstream from station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 2017
reached an elevation of 248.98 ft above IGLD of 1985, from
floodmarks at Marsh Creek at mouth at The Bridges (station
0422018605).