SECTION OF THROUGH GIRDER, PASSING ABOVE RAILROAD TRACKS, LOOKING NORTH. - Philadelphia and Western Railway, Bridgeport Bridge, Spanning Schulykill River, west of DeKalb Street, Bridgeport, Montgomery County, PA; Shade, G H; McClintic-Marshall Construction Company; Philadelphia and Western Railway; Southeastern Pennsylvania Transportation Authority (SEPTA); DeLony, Eric N, project manager; Pennsylvania Historical and Museum Commission, sponsor; Consolidated Rail Corporation (Conrail), sponsor; Spivey, Justin M, historian; Elliott, Joseph E, B, photographer
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