Raritan River below Calco Dam at Bound Brook, Somerset County NJ (BDKN4)
Gage Location: Somerset County, New Jersey	Site Location: Somerset County, New Jersey
Latitude: 40.551	Longitude: -74.548	Elevation: -9999 ft. MSL	Drainage Area: 785 Sq. Mi.
Minor Stage: 28 ft.	Moderate Stage: 30 ft.	Major Stage: 33 ft.
First Flood: 1882-09-24	Last Flood: 2011-12-08 Crest: 28.59 ft.	Datum change: 1966-10-01	Number of Floods: 67

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Year Before Datum Change Number of Floods 1882 1 1883 0 1884 0 1885 0 1886 0 1887 0 1888 0 1889 0 1890 0 1891 0 1892 0 1893 0 1894 0 1895 0 1896 0 1897 0 1898 0 1899 0 1900 0 1901 0 1902 0 1903 0 1904 0 1905 0 1906 0 1907 0 1908 0 1909 0 1910 0 1911 0 1912 0 1913 0 1914 0 1915 0 1916 0 1917 0 1918 0 1919 0 1920 0 1921 0 1922 0 1923 0 1924 0 1925 0 1926 0 1927 0 1928 0 1929 0 1930 0 1931 0 1932 0 1933 0 1934 0 1935 0 1936 0 1937 0 1938 0 1939 0 1940 0 1941 0 1942 0 1943 0 1944 0 1945 0 1946 0 1947 0 1948 0 1949 0 1950 0 1951 0 1952 0 1953 0 1954 0 1955 0 1956 0 1957 0 1958 0 1959 0 1960 0 1961 0 1962 0 1963 0 1964 0 1965 0

Year After Datum Change Number of Floods 1966 0 1967 0 1968 1 1969 0 1970 1 1971 2 1972 2 1973 4 1974 0 1975 4 1976 0 1977 1 1978 1 1979 3 1980 1 1981 1 1982 1 1983 3 1984 3 1985 0 1986 2 1987 1 1988 0 1989 2 1990 0 1991 0 1992 1 1993 0 1994 2 1995 0 1996 5 1997 0 1998 0 1999 2 2000 0 2001 0 2002 0 2003 1 2004 1 2005 3 2006 2 2007 3 2008 3 2009 1 2010 2 2011 7 2012 0 2013 0

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: 08:09 AM Feb 08, 2013