4-panel truss (215)
A-frame portal (232)
Chicago & North Western Railway (470)
Iowa (3,499)
Marshall County, Iowa (47)
Minneapolis & St. Louis Railway (82)
Open (28,304)
Owned by railroad (4,037)
Pin-connected (1,519)
| Pratt through truss (3,166)
Pratt truss (5,658)
Railroad (4,068)
Span length 100-125 feet (3,299)
Through truss (9,205)
Total length 100-125 feet (3,632)
Truss (23,565)
Union Pacific Railroad (793)
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