PROVISIONAL DATA SUBJECT TO REVISION
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Site Information
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. Water Years 2020-21: Records fair except those for estimated daily discharges and those below 100 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,190 ft³/s, Oct. 27, 2021, gage height, 16.20 ft; maximum gage height, 16.71 ft, July 27, 2021; minimum daily discharge, 76.9 ft³/s, Feb. 17, 2021; minimum gage height, 14.81 ft, Mar. 11, 2021.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 2017 reached an elevation of 19.66 ft, present datum (248.98 ft above IGLD of 1985), from floodmarks at Marsh Creek at mouth at The Bridges (station 0422018605).
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. Water Years 2020-21: Records fair except those for estimated daily discharges and those below 100 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,190 ft³/s, Oct. 27, 2021, gage height, 16.20 ft; maximum gage height, 16.71 ft, July 27, 2021; minimum daily discharge, 76.9 ft³/s, Feb. 17, 2021; minimum gage height, 14.81 ft, Mar. 11, 2021.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 2017 reached an elevation of 19.66 ft, present datum (248.98 ft above IGLD of 1985), from floodmarks at Marsh Creek at mouth at The Bridges (station 0422018605).
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