Old National Road Casselman River Bridge

Old National Road Casselman River Bridge.  In 1806, the United States Congress commissioned a bridge over the Casselman river, as part of the National Road Project.  Bridge construction began in 1813. The stone arch of the bridge is 26 feet wide, 3 feet thick, and from end to end spans 80 feet. When it opened to traffic in 1817, the Casselman River Bridge was the largest single span stone arch bridge in America.