Flood Risk in NSW

 

Managing flooding is an important priority for the State Government and local councils in NSW. All local government areas in the state are exposed to some flood threat, whether from rivers or local overland flow, and damage caused by flooding can be significant. More than 100,000 buildings are at risk of flooding in NSW, and the average damage from flooding in coastal New South Wales and inland urban centres is around $200 million a year. Major floods have occurred regularly in NSW as highlighted in Table 1.

The impacts upon the community can be devastating. For example, flooding in the Lower Hunter in 1955 caused more than $700 million damage, $65 million worth of damage was caused in Nyngan in 1990, Coffs Harbour suffered $40 million in damage in 1996, and Wollongong had more than $100 million in damage in 1998. These floods also resulted in a number of deaths.

The value of technical and financial support offered by the Department to local councils and their communities is illustrated by the protection resulting from major mitigation projects completed with assistance under the NSW Government’s Floodplain Management Program.

 

Table 1 – Years in which significant floods occurred prior to 2001

RIVER SYSTEM

YEARS

Adelong/Tarcutta Cks 1984 1983                  
Bega 1971 1934 1919 1898 1873 1870          
Bellinger 1974 1954 1950 1946 1876 1875 1870        
Berkeley Vale 1981 1978                  
Billabong Creek 1984 1974 1956 1952 1931 1891          
Bogan 1992 1990 1976 1955 1950 1928 1920 1896 1892 1890 1875
Border Rivers 1996 1988 1983 1976 1956 1921 1890        
Brunswick 1987 1978 1954                
Camden Haven 1995 1980 1974 1963 1956 1929          
Castlereagh 1974 1971 1955 1950 1920            
Clarence 1996 1967 1963 1954 1950 1893 1890 1887      
Coffs Creek 1996 1991 1977 1974              
Cooks 1961 1956 1889                
Darling 1998 1990 1976 1974 1956 1950 1890 1864      
Erina Creek 1990 1989 1988 1978              
Fairy Ck (Wollongong) 1998 1991 1984 1975 1974 1961 1959 1958 1950    
Georges 1988 1986 1956 1950 1949 1914 1898 1873      
Gwydir/ Mehi 1984 1976 1974 1971 1956 1955 1950 1949 1921 1910  
Hastings 1968 1954 1950 1929 1894 1864          
Hawkesbury 1990 1978 1964 1961 1956 1900 1879 1870 1867 1817 1809
Hunter & Patterson 1992 1990 1978 1971 1955 1952 1949 1930 1893 1820  
Lachlan 1998 1993 1990 1976 1974 1961 1956 1952 1951 1916 1891
Lake Macquarie 1990 1981 1964                
Macintyre 1996 1991 1983 1976 1956 1921 1890        
Macleay 1963 1950 1949 1921 1893 1875 1864        
Macquarie 1990 1986 1971 1964 1956 1955 1952 1950 1941 1926 1890
Macquarie Rivulet 1998 1991 1984 1975 1959 1930          
Manning 1990 1978 1930 1929 1895 1875 1866        
Moruya 1975 1925 1914 1898 1870            
Mullet Creek 1984 1978 1975 1961 1955 1950 1930        
Murray 1993 1992 1981 1980 1978 1975 1974 1956 1931 1917 1870
Murrumbidgee 1993 1974 1956 1952 1931 1925 1905 1894 1891 1870 1852
Nambucca 1974 1963 1954 1950 1890            
Namoi 1990 1984 1976 1974 1971 1964 1955 1920 1910 1900 1864
Narara Creek 1992 1989 1988 1985              
Parramatta 1988 1986                  
Peel 1984 1962 1955 1910 1864            
Prospect Creek 1988 1986 1956                
Richmond 1989 1974 1962 1956 1954 1945 1893        
Shoalhaven 1990 1988 1978 1925 1916 1873 1870 1860      
South & Eastern Cks 1988 1986 1956                
Tweed 1989 1974 1956 1954 1931            
Warrego/Paroo 1997 1990                  
Northern Wollongong 1998 1991 1988 1985 1978 1975 1974        
Woronora 1956 1950 1949 1933              
Wyong 1964 1949 1930 1927              

 


 

Page last updated: 08 September 2015