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Chart 16.6 - Enlarged version and data source

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Chart 16.6 Age of public infrastructure

Chart 16.6 (data) Age of public infrastructure
  Roads and highways Sewer systems Wastewater treatment Bridges
  average age in years
1963 14.8 16.7 15.8 16.3
1964 14.6 16.5 15.6 16.3
1965 14.5 16.4 15.4 16.3
1966 14.4 16.2 15.2 16.3
1967 14.3 16.1 15.1 16.3
1968 14.3 16.0 15.0 16.4
1969 14.3 16.0 14.9 16.5
1970 14.2 16.0 14.9 16.7
1971 14.1 15.9 14.9 16.8
1972 14.0 15.8 14.7 16.7
1973 14.0 15.7 14.6 16.7
1974 14.1 15.6 14.5 16.7
1975 14.2 15.4 14.3 16.6
1976 14.4 15.3 14.2 16.6
1977 14.6 15.2 14.1 16.6
1978 14.8 15.2 14.1 16.7
1979 15.0 15.2 14.1 16.8
1980 15.2 15.2 14.2 16.9
1981 15.4 15.2 14.2 17.1
1982 15.6 15.3 14.2 17.2
1983 15.9 15.4 14.4 17.4
1984 16.2 15.5 14.5 17.7
1985 16.3 15.6 14.6 17.8
1986 16.5 15.8 14.8 18.1
1987 16.6 16.0 15.0 18.4
1988 16.7 16.2 15.2 18.7
1989 16.8 16.4 15.3 19.0
1990 16.9 16.6 15.5 19.3
1991 16.9 16.8 15.6 19.5
1992 17.0 16.9 15.7 19.7
1993 17.0 17.1 15.9 20.0
1994 17.0 17.2 16.0 20.2
1995 16.9 17.4 16.1 20.4
1996 16.9 17.6 16.2 20.7
1997 16.9 17.9 16.5 21.1
1998 16.9 17.9 16.8 21.6
1999 16.9 17.9 17.0 21.9
2000 16.9 17.9 17.4 22.2
2001 16.8 18.0 17.8 22.4
2002 16.7 17.9 18.1 22.5
2003 16.6 17.8 18.3 22.7