6-panel truss (409)
A-frame portal (246)
Abandoned (1,394)
Baltimore through truss (149)
Baltimore truss (163)
Beam (6,157)
Chicago & North Western Railway (492)
Hardin County, Iowa (37)
Iowa (3,615)
Iowa River (64)
| Iowa River Railroad (5)
Minneapolis & St. Louis Railway (82)
Owned by railroad (4,120)
Pin-connected (1,568)
Railroad (4,223)
Span length 125-175 feet (2,966)
Through truss (9,254)
Timber stringer (1,894)
Total length 250-500 feet (3,382)
Truss (23,615)
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