. . . . "Portage Lake Lift Bridge" . . "152.4" . . . . . "1959" . . . . "Portage Lift Bridge" . . . . "54.864" . . . "Houghton" . . "20000" . . "Portage Canal Lift Bridge" . "76.2" . "3380" . "Portage Canal Swing Bridge" . . . . . . . . . . . . . . . . . . . "Portage Lake Bridge" . . . . "Portage Lake Lift Bridge" . .