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USGS 01500500 SUSQUEHANNA RIVER AT UNADILLA NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 42°19'17.4", long 75°18'59.0" referenced to North American Datum of 1983, Otsego County, NY, Hydrologic Unit 02050101, on right bank 25 ft downstream from Bridge Street at Unadilla, 1.0 mi upstream from Carrs Creek, and 1.6 mi downstream from Ouleout Creek.
DRAINAGE AREA.--982 mi².
PERIOD OF RECORD.--June 1938 to March 1995. 1996 to 2014 (annual maximum only). October 2014 to current year.
REVISIONS HISTORY.--WSP 851: 1938 (M). WSP 2103: 1966 (M), Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 997.25 ft above NGVD of 1929 and 996.85 ft above NAVD of 1988.
REMARKS.--Minor regulation by upstream lakes and, since November 1949, flood flows regulated by East Sidney Lake (see station 01499500).
Water Years 2014-15: Records good except those for estimated daily discharges, which are fair.
Water Years 2016-20: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 35,100 ft³/s, June 29, 2006, gage height, 17.72 ft; minimum discharge, 39 ft³/s, Oct. 17, 1964, gage height, 1.38 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of March 18, 1936, reached a stage of 16.6 ft, from flood marks, discharge, 31,300 ft³/s, from publications of the Corps of Engineers, Baltimore District.
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> Rating Information
This station managed by the NY Water Science Center Ithaca.

Available Parameters Available Period
  
1985-10-02  2021-10-15
2007-10-01  2021-10-15







 (7)
 

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


Discharge, cubic feet per second

Most recent instantaneous value: 1050 10-15-2021   15:00 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Oct 15 based on 64 water years of record more
Min
(1965)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Oct 15
Max
(1978)
62.0 171 287 622 641 1050 4390


Gage height, feet

Most recent instantaneous value: 3.78 10-15-2021   15:00 EST
Graph of  Gage height, feet

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