BNSF Railway (1,196)
Beam (13,549)
Chicago, Burlington & Quincy Railroad (402)
Girder (8,832)
Iowa (6,094)
Marion County, Iowa (123)
Open (37,870)
| Owned by railroad (10,778)
Plate girder (6,731)
Railroad (14,137)
Span length 75-100 feet (6,049)
Through girder (3,289)
Timber stringer (3,521)
Total length 175-250 feet (3,956)
|