https://historicbridges.org/bridges/browser/?bridgebrowser=truss/phrailb/
Port Huron Railroad Bridge (Pere Marquette Railroad Bridge) - HistoricBridges.org
Historic Truss Bridge in Port Huron St. Clair County, Michigan. Unused for many years, this extremely rare example of an Abt bascule bridge is a significant...
port huron railroad bridgepere marquette