Funding for this site is provided by:
42°56'02.4", long 74°11'30.7" referenced to North
American Datum of 1983, Montgomery County, NY, Hydrologic Unit
02020004, on left bank in waterfront park at Amsterdam, and 480 ft
downstream from bridge on State Highway 30.
PERIOD OF RECORD.--
Miscellaneous discharge measurements, water
years 1966-67. January 2015 to current year.
Water-stage recorder, acoustic velocity meter, and
crest-stage gage. Datum of gage is 234.50 ft above NAVD of 1988.
Considerable regulation of stage by Lock 11 on the
Erie (Barge) Canal about 1.3 mi upstream and Lock 10 on the Erie
(Barge) Canal about 3.0 mi downstream.
Water Years 2015-18: Records poor.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge 60,200 ft³/s,
Apr. 5, 2017, gage height, 22.55 ft; maximum gage height, 24.61
ft, Feb. 20, 2018 (ice jam); minimum discharge not determined;
minimum gage height, 7.75 ft, Apr. 19, 20, 2016.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Flood of Aug. 29, 2011,
reached a stage of 41.94 ft, from floodmarks in downstream cabin of
Lock 11 about 1.3 mi upstream, and a stage of 35.70 ft, from floodmarks
in upstream cabin of Lock 10 about 3.0 mi downstream, from information
provided by New York State Canal Corporation. Flood of June 29, 2006,
reached stages of 38.18 ft and 28.92 ft, from floodmarks at same
Peak Flow and Stage Information