U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
Status of the Nation's Highways, Bridges, and Transit:
2002 Conditions and Performance Report
Exhibit ES12A is a pie chart that shows the average annual cost to improve highways and bridges, distribution by improvement type. $49.9 billion, or 46.7 percent, is for system expansion; $48.5 billion, or 45.4 percent, is for system preservation; and $8.4 billion, or 7.9 percent, is for system enhancement.
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