Clairton Bridge Over Monongahela River

Consisting of the following single-track through plate-girders: one each 85 ft 10.25-inch o-o. 112 ft 8-in o-o, 113 ft 6.5-in o-o, and the following double-track spans: one through pin-connected, 498 ft 0-in c-c; one deck plate-girder, 113 ft 8-in o-o; one deck plate-girder, 98 ft 8-in o-o; one through plate-girder, 100 ft 0-in o-o. Weight 3,490 tons.