Black Hawk County, Iowa (47)
Built 1930 (1,238)
Built during 1930s (8,551)
Canadian National Railway (170)
Chicago Great Western Railway (87)
Girder (3,241)
Illinois Central Railroad (212)
Iowa (3,511)
Iowa Northern Railroad (48)
Open (28,320)
| Owned by railroad (4,052)
Plate girder (2,253)
Railroad (4,083)
Skewed (4,080)
Span length 50-75 feet (6,996)
Through girder (1,137)
Total length 100-125 feet (3,634)
Union Pacific Railroad (797)
Waterloo, Iowa (14)
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