Investment in infrastructure helped fuel America’s economic growth in the 20th Century, but our once-world-class system of roads, bridges, sewer systems and waterways are in desperate need of modernization. More than 4,000 of Pennsylvania’s bridges are structurally deficient and the state’s roads have been called the worst in the country. Philadelphia Mayor Michael Nutter recently led the U.S. Conference of Mayors in a plea for more infrastructure funding. Today on Radio Times we will discuss the state of local infrastructure and what needs to be done to improve. Our guests are PETER SWAN, associate professor of Logistics and Operations Management at Penn State-Harrisburg, and WILLIAM MILLER, associate professor of Civil & Environmental Engineering at Temple University.