Beaver Kill at Cooks Falls, Delaware County NY (CKFN6)
Gage Location: Delaware County, New York	Site Location: Delaware County, New York
Latitude: 41.946	Longitude: -74.98	Elevation: 1151.7 ft. MSL	Drainage Area: 241 Sq. Mi.
Minor Stage: 10 ft.	Moderate Stage: 16 ft.	Major Stage: 18 ft.
First Flood: 1914-03-28	Last Flood: 2013-03-12 Crest: 10.18 ft.	Datum change: 1933-10-01	Number of Floods: 129

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Year Before Datum Change Number of Floods 1914 1 1915 0 1916 0 1917 2 1918 0 1919 0 1920 0 1921 1 1922 0 1923 1 1924 2 1925 0 1926 1 1927 1 1928 0 1929 1 1930 0 1931 0 1932 0

Year After Datum Change Number of Floods 1933 1 1934 1 1935 1 1936 2 1937 2 1938 4 1939 0 1940 2 1941 1 1942 2 1943 2 1944 0 1945 0 1946 1 1947 0 1948 2 1949 1 1950 2 1951 2 1952 3 1953 0 1954 0 1955 2 1956 0 1957 1 1958 0 1959 2 1960 1 1961 1 1962 1 1963 0 1964 0 1965 0 1966 0 1967 0 1968 1 1969 1 1970 1 1971 0 1972 1 1973 2 1974 1 1975 0 1976 2 1977 2 1978 1 1979 4 1980 1 1981 3 1982 2 1983 1 1984 3 1985 1 1986 1 1987 1 1988 1 1989 2 1990 1 1991 1 1992 0 1993 2 1994 2 1995 1 1996 4 1997 0 1998 2 1999 2 2000 1 2001 0 2002 0 2003 6 2004 2 2005 5 2006 3 2007 1 2008 4 2009 1 2010 4 2011 5 2012 2 2013 1

Codes and description

C1|Crest information looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 09:54 PM Mar 12, 2013