Funding for this site is provided by:
44°35'58", long 75°22'44" referenced to North
American Datum of 1983, St. Lawrence County, NY, Hydrologic Unit
04150302, on right bank 1.5 mi downstream from Beaver Creek, and 2.5 mi
upstream from Heuvelton.
PERIOD OF RECORD.--
June 1916 to current year.
WDR NY-82-1: Drainage area.
Water-stage recorder and crest-stage gage. Datum of gage
is 288.85 ft above NGVD of 1929. Prior to Sept. 16, 1916, nonrecording
gage at same site and datum.
Entire flow regulated by Cranberry Lake (station
04260990); slight diurnal fluctuation at low flow and medium flow
caused by powerplants. During high stages on Grass River, part of flow
of that stream may pass through Upper Lake, Indian Creek, and Lower
Lake and enter Oswegatchie River at Rensselaer Falls, 4.5 mi upstream
from station. In October 1973, a dike was installed on Indian Creek to
prevent overflow of Grass River during high flows.
Water Years 2014-15: Records good except those for estimated daily
discharges, which are poor.
Water Year 2016: Records good.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 19,600 ft³/s,
Apr. 6, 1960, gage height, 10.36 ft; minimum discharge, 99 ft³/s, Aug.
4, 1991, gage height, 0.49 ft; minimum gage height, 0.42 ft, Sept. 11,
2002, but may have been lower during period of no gage-height record
Sept. 7, 1960.
Peak Flow and Stage Information