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LOCATION.--Lat 44°13'21", long 75°04'28" referenced to North American Datum of 1983, St. Lawrence County, NY, Hydrologic Unit 04150302, on left bank 300 ft downstream from powerplant, and 2.8 mi north of Oswegatchie.
DRAINAGE AREA.--259 mi².
PERIOD OF RECORD.--October 1924 to September 1968, annual maximum only--1985, July 1987 to current year. Prior to October 1958, published as East Branch Oswegatchie River near Oswegatchie.
REVISIONS HISTORY.--WDR NY-88-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 1,016.52 ft above NGVD of 1929 and 1,016.12 ft above NAVD of 1988 (VERTCON).
REMARKS.--Extensive diurnal fluctuation at low and medium flow caused by powerplant. Entire flow from 140 mi² of drainage area controlled by Cranberry Lake (station 04260990).
Water Years 2014-17: Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,370 ft³/s, Apr. 15, 2014, gage height, 6.45 ft; maximum gage height, 7.3 ft, Apr. 26, 1926; minimum discharge not determined.

Peak Flow and Stage Information

Gage PhotoStation image


This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
All 2 Available Parameters for this site
00060 Discharge 1990-10-01  2019-01-17
00065 Gage height 2007-10-01  2019-01-17

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 507 01-17-2019   13:15 EST
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Daily discharge, cubic feet per second -- statistics for Jan 17 based on 74 years of record more
Most Recent
Value Jan 17
Median Mean 75th
128 373 507 529 577 738 1950

Gage height, feet

Most recent instantaneous value: 3.13 01-17-2019   13:15 EST
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