Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins



Click to hidestation-specific text
Funding for this site is provided by:


> Site Information
LOCATION.--Lat 43°07'31.4", long 73°35'05.7" referenced to North American Datum of 1983, Washington County, NY, Hydrologic Unit 02020003, on left bank 1,400 ft downstream from bridge on U.S. Highway 4 at Thomson, and 500 ft upstream from dam at Lock 5 of the Champlain (Barge) Canal.
DRAINAGE AREA.--3,000 mi².
PERIOD OF RECORD.--September 2014 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 81.65 ft above NAVD of 1988.
REMARKS.--Flow regulated appreciably by Great Sacandaga Lake since March 1930 (station 01323500) and Indian Lake since 1898 (station 01314500). Diurnal fluctuation caused by powerplants upstream from station. Water is diverted into St. Lawrence River basin through Glens Falls feeder, Bond Creek, and Champlain (Barge) Canal, and occasionally may be received from that basin through summit level of Champlain (Barge) Canal at Dunham Basin.
Water Years 2014-20: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 36,400 ft³/s, Nov. 2, 2019, gage height, 24.89 ft; minimum discharge, 1,270 ft³/s, Aug. 15, 2019, gage height, 19.75 ft; minimum gage height, 19.68 ft, May 29, Sept. 9, 2015.
> WaterNow – get the latest gage data from your mobile phone or email.
> Rating Information
This station managed by the NY Water Science Center Troy.

Available Parameters Period of Record
2014-09-04  2021-12-03


  -- or --



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

Discharge, cubic feet per second

Graph of DAILY Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"


Create presentation-quality graph.