Here’s how to fix America’s crumbling bridges
- Written by The Conversation USA
Some US bridges are currently living out their twilight years.Bob Jagendorf, CC BY-NCThere are about 600,000 bridges in the United States, and about one in four is classified as functionally obsolete or structurally deficient. This doesn’t mean they’re in danger of imminent collapse; they may be simply too narrow or built for lighter...