Funding for this site is provided by:
44°21'30", long 73°23'40" referenced to North
American Datum of 1983, Essex County, NY, Hydrologic Unit 04150408, on
right bank 0.5 mi upstream from bridge on State Highway 22, 2.5 mi
downstream from North Branch Bouquet River, and 3.0 mi upstream from
mouth, at Willsboro.
PERIOD OF RECORD.--
August to September 1904 and August to
November 1908 (gage heights and discharge measurements only), July 1923
to September 1968, annual maximum only--1980, 1985, 1987-89, March 1990
to current year.
Water-stage recorder and crest-stage gage. Datum of gage
is 150.88 ft above NGVD of 1929 and 150.38 ft above NAVD of 1988
(VERTCON). Prior to July 1923, nonrecording gages at site 0.75 mi
downstream at various datums. July 23 to Aug. 28, 1923, nonrecording
gage at site 600 ft downstream at present datum.
Occasional diurnal fluctuation at low flow caused by
powerplant at Wadhams. Slight regulation by Lincoln Pond on Black
Water Years 2014-18: Records good except those for estimated daily
discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 16,000 ft³/s,
Aug. 29, 2011, gage height, 12.35 ft, from floodmark in gage house;
minimum discharge, 8.8 ft³/s, Sept. 20, 1957, gage height, 1.84
Peak Flow and Stage Information