State of Historic Bridges in America Compared to the World

Changing awareness and appreciation of historic bridges during the late-20th and early-21st century has made people realize the impact infrastructure has on the cultural environment. Highlighting efforts of the historic bridge world regarding regulations, codes, bridge engineering best practices, education, and how saving old bridges represent sustainability, the intent of this paper is to summarize what's happening in the US regarding public advocacy, Interstate bridges, landmarks and World Heritage, comparing America's experience with Europe and other parts of the world.