BNSF Railway (1,589)
Beam (16,878)
Des Moines, Iowa (121)
Iowa (6,791)
Norfolk & Western Railway (636)
Norfolk Southern Railway (2,093)
Open (40,968)
| Owned by railroad (13,494)
Polk County, Iowa (281)
Railroad (16,454)
Span length under 25 feet (7,092)
Timber stringer (4,318)
Total length 25-50 feet (11,498)
Wabash Railroad (592)
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