Bremer County, Iowa (58)
Clinton Bridge & Iron Works (76)
Frederika, Iowa (2)
Iowa (6,794)
Lost (28,575)
Pin-connected (4,729)
| Pratt through truss (6,067)
Pratt truss (10,317)
Through truss (16,839)
Truss (35,529)
Wapsipinicon River (82)
Wooden deck (6,163)
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