National Bridge Inventory: America's Infrastructure Database
The National Bridge Inventory serves as the comprehensive federal database containing detailed information about all publicly owned highway bridges in the United States. This critical system tracks structure characteristics, condition ratings, and inspection findings across hundreds of thousands of assets nationwide. Understanding National Bridge Inventory requirements is essential for transportation agencies managing infrastructure portfolios. Federal law mandates annual National Bridge Inventory submissions from state transportation agencies. These comprehensive reports encompass bridges on all public roads exceeding twenty feet in length. The National Bridge Inventory includes structure types, construction materials, traffic volumes, and condition assessments that inform funding distributions and policy decisions. Data quality within National Bridge Inventory records directly impacts infrastructure investment decisions. Accurate National Bridge Inventory submissions ensure f...