An economics reporter for CNBC examines the state of America’s bridge infrastructure, and the factors behind the huge challenge to repair and maintain tens of thousands of structures that have exceeded their 50-year suggested useful life span. These factors include insufficient funds overall and transportation funds instead being used to construct new bridges and roads while the old ones continue to crumble. Smart Growth America’s Roger Millar is quoted in the piece, saying that “it’s a lot harder to cut a ribbon on a pothole repair project.”