U.S. Sen. Susan Collins joined Maine Department of Transportation officials, University of Maine researchers, Advanced Infrastructure Technologies (AIT) Bridges and industry partners at the Grist Mill Bridge in Hampden, Maine on May 21 to celebrate the groundbreaking research that is leading the country toward a sustainable, low-cost transportation system of the future. The 75-foot single-span read more Hampden bridge event celebrates UMaine’s groundbreaking research in sustainable, low-cost transportation solutions