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> Site Information
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 1,016.14 ft above NAVD of 1988.
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 2014-20: Records good except those for estimated daily discharges, which are poor.
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.
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> Rating Information
This station managed by the NY Water Science Center Potsdam.

Available Parameters Available Period
1990-10-01  2021-09-25
2007-10-01  2021-09-25


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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 197 09-25-2021   11:15 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Sep 25 based on 78 water years of record more
Most Recent
Value Sep 25
Median Mean 75th
43.0 183 197 269 345 395 2080

Gage height, feet

Most recent instantaneous value: 2.29 09-25-2021   11:15 EST
Graph of  Gage height, feet

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