Funding for this site is provided by:
42°05'11", long 76°48'04" referenced to North
American Datum of 1983, Chemung County, NY, Hydrologic Unit 02050105,
on right bank 350 ft upstream from bridge on Pennsylvania Avenue at the
north end of George Place at Elmira and 1.0 mi downstream from Hoffman
PERIOD OF RECORD.--
Annual maximum only--1988-2009, October 2009
to current year.
Water-stage recorder and crest-stage gage. Datum of gage
is 833.65 ft above NGVD of 1929 and 833.05 ft above NAVD of 1988
High flows significantly regulated by upstream
reservoirs. From 1931-98, a large part of flow from 45.5 mi² of
drainage area upstream from Lamoka Lake on Mud Creek, an upstream
tributary, had been diverted into Keuka Lake (Oswego River basin) for
power development. Diversion upstream from City of Corning and Town of
Horseheads for municipal supply, which may include water from several
municipal and industrial wells upstream from gage.
Water Year 2014-16: Records good except those for estimated daily
discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 71,000 ft³/s,
Jan. 20, 1996, gage height, 18.51 ft, from floodmark; minimum
discharge, 109 ft³/s, Sept. 18, 2016, gage height 0.79 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Flood of June 23, 1972,
reached a discharge of 235,000 ft³/s, computed by slope-area
measurement at site (station 01530303) 6 mi upstream.
Peak Flow and Stage Information