Chenango River at Greene, Chenango County NY (GNEN6)
Gage Location: Chenango County, New York	Site Location: Chenango County, New York
Latitude: 42.324	Longitude: -75.772	Elevation: 892.58 ft. MSL	Drainage Area: 593 Sq. Mi.
Minor Stage: 13 ft.	Moderate Stage: 17 ft.	Major Stage: 22 ft.
First Flood: 1935-07-08	Last Flood: 2011-09-08 Crest: 21.09 ft.	Datum change: 1937-02-20	Number of Floods: 44

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1935-07-08 22 -9999 Major *** NWS 1939-02-21 13.32 9650 Minor (1) (2) 1940-04-01 15.76 11500 Minor (E) (1) 1940-04-05 14.24 11600 Minor none 1940-04-09 14.85 12700 Minor none 1942-12-31 18.33 18900 Moderate none 1943-03-17 15.18 13000 Minor none 1944-03-17 14.19 11000 Minor (1) 1948-03-17 13.31 9210 Minor none 1948-03-22 15.81 13200 Minor none 1950-03-29 13.55 10100 Minor none 1950-04-05 14.66 11800 Minor none 1956-03-08 13.64 10300 Minor none 1956-04-06 15.18 13300 Minor none 1958-04-07 13.21 9860 Minor none 1959-01-22 14.51 11800 Minor (1) 1960-04-01 14.98 12900 Minor none 1960-04-05 14.38 11800 Minor none 1961-02-26 15.92 14700 Minor none 1962-04-01 13.4 10200 Minor none 1963-03-27 14.22 11600 Minor none 1964-03-06 16.94 16800 Minor none 1972-06-23 14.5 12000 Minor none 1973-12-27 14.95 12800 Minor none 1975-02-25 13.3 10000 Minor none 1977-03-14 15.49 13900 Minor none 1978-01-27 14.64 12300 Minor none 1979-03-06 17.41 17900 Moderate (6) 1983-12-14 15.78 14500 Minor none 1986-03-15 15.02 13000 Minor (6) 1993-04-11 15.62 14200 Minor none 1996-01-20 15.89 14700 Minor none 1996-12-02 14.24 11600 Minor none 1999-01-25 14.3 11700 Minor (E) (1) 2000-02-28 14.49 12000 Minor none 2000-04-04 13.35 10100 Minor none 2001-04-10 13.66 10600 Minor none 2003-03-22 13.15 9780 Minor none 2005-04-03 18.67 20800 Moderate none 2006-06-28 21.16 27100 Moderate none 2006-11-17 15.46 13800 Minor none 2007-03-16 13.31 -9999 Minor none 2011-03-12 13.9 11000 Minor none 2011-09-08 21.09 26900 Moderate none

MARFC Codes
Code Description
(!!!) Datum changed during this year.
(1) Backwater Effect.
(2) 15.77 ft also occurred on 11/25/1950 but only counted as one flood.
(3) Estimated from currrent USGS rating table.
(4) Estimated height from the USGS.
(5) Gage height at a different site and/or datum
(6) Discharge affected by Regulation or Diversion
(7) Due to changes, prior floods were based on present flood stage. Therefore, flood data could possibly be incomplete.
(8) Gage is a staff gage and not the offical USGS gage. Therefore, some floods may be missing from our study.
(9) Discharge effected by snow-melt, ice jam or debris jam break up
(A) Discharge affected to unknown degree by regulation or diversion.
(B) Month or day of occurrence is unknown or not exact.
(C) All or part of the record affected by urbanization, mining, agricultural changes, channelization, or other factors.
(D) Crest height adjusted to current datum.
(E) Estimated discharge.
(F) Only annual maximum peak available for this year.
(O) This flood occurred at a previous flood stage that is lower than the current flood stage. This is only a historical flood.
** Crest information looks reasonable despite potential problems. This data was used in our study.
*** Crest information looks unreliable and incomplete and was not used in our flood frequency study.
**** Gauge was discontinued in 2004. 2004 and later was not used in our study.
none No code

Updated: 08:58 AM Jun 28, 2012