A-frame portal (420)
American Bridge Co. (1,500)
Boyer River (36)
Built 1902 (517)
Built during 1900s (7,194)
Chicago & North Western Railway (1,399)
Crawford County, Iowa (96)
Denison, Iowa (4)
Double-barreled (80)
Girder (10,203)
Have street view (26,847)
Iowa (6,471)
Lattice through truss (552)
Lattice truss (584)
| M-frame portal (83)
Open (39,831)
Owned by railroad (12,370)
Plate girder (7,901)
Quadrangular lattice through truss (181)
Railroad (15,361)
Riveted (2,159)
Span length 100-125 feet (4,391)
Through girder (3,795)
Through truss (15,015)
Total length 125-175 feet (5,903)
Truss (32,704)
Union Pacific Railroad (2,358)
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