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Transportation in the United States / Bridges / Forksville Covered Bridge / Hillsgrove Covered Bridge / Pennsylvania / National Bridge Inventory / United States Department of Transportation


Bridge inspection Definitions What are “general condition ratings?” According to the National Bridge Inspection Standards (NBIS), condition ratings are used to describe an existing bridge or culvert compared with its
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Document Date: 2012-11-09 17:49:07


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