Highway Bridges in the United States–an Overview

Source: Jeffery Memmott, Bureau of Transportation Statistics, Special Report, SR-003, September 2007

Bridges are an integral part of the U.S. highway network, providing links across natural barriers, passage over railroads and highways, and freeway connections. The Federal Highway Administration (FHWA) maintains a database of our nation’s highway bridges–the National Bridge Inventory (NBI)–with detailed information on all public road bridges greater than 20 feet. This special report gives a brief synopsis of that inventory, including bridge condition and the resources spent for maintenance and upgrades.

Leave a Reply