Funding for this site is provided by:
44°26'14.6", long 73°40'51.5" referenced to North
American Datum of 1983, Essex County, NY, Hydrologic Unit 04150404, on
left bank 700 ft upstream from bridge on Burt Street, and 0.5 mi
upstream from confluence with West Branch, in Au Sable Forks.
PERIOD OF RECORD.--
Occasional discharge measurements, water
years 1910-11. September 1924 to September 1995, October 1996 to
February 2016 (annual maximum only), March 2016 to current year.
WSP 759: Drainage area.
Water-stage recorder and crest-stage gage. Datum of gage
is 545.37 ft above NGVD of 1929 and 544.99 ft above NAVD of 1988
(VERTCON). Prior to Sept. 21, 1938, nonrecording gage at Grove Road
bridge in Au Sable Forks, 400 ft upstream from confluence with West
Branch Ausable River, at datum 3.54 ft lower.
Minor storage in Upper and Lower Ausable Lakes and,
during the 1920s to 1950s, flows could have been affected by operation
of a hydroelectric plant (Nye Dam) near Upper Jay.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 31,500 ft³/s,
Aug. 28, 2011, from rating curve extended above 13,900 ft³/s on basis
of contracted-opening measurement of peak flow at gage height 15.22 ft;
maximum gage height, 18.51 ft, from floodmark in gage house; minimum
discharge observed, 20 ft³/s, Aug. 11, 14, 28, 1934.
Peak Flow and Stage Information
View of the
East Branch Ausable River