19th Century (8,655)
Boyer River (36)
Built 1899 (432)
Built during 1890s (3,220)
Chicago & North Western Railway (1,451)
Concrete girder (1,078)
Deck girder (6,336)
Girder (11,225)
Harrison County, Iowa (79)
Iowa (6,811)
Lassig Bridge & Iron Works (243)
Lattice through truss (676)
Lattice truss (709)
| M-frame portal (88)
Missouri Valley, Iowa (3)
Open (41,013)
Owned by railroad (13,567)
Quadrangular lattice through truss (192)
Railroad (16,520)
Riveted (2,567)
Span length 125-175 feet (4,454)
Through truss (17,221)
Total length 175-250 feet (4,523)
Truss (35,972)
Union Pacific Railroad (2,480)
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