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5. Pennsylvania
>Percent of bridges that are structurally deficient: 13.8%
>Number of bridges: 23,166
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4. South Dakota
>Percent of bridges that are structurally deficient: 17.3%
>Number of bridges: 5,886
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3. Rhode Island
>Percent of bridges that are structurally deficient: 17.5%
>Number of bridges: 779
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2. Iowa
>Percent of bridges that are structurally deficient: 18.9%
>Number of bridges: 23,870
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1. West Virginia
>Percent of bridges that are structurally deficient: 20.4%
>Number of bridges: 7,314
