6-panel truss (405)
A-frame portal (232)
Beam (6,052)
Flint River (Michigan) (8)
Michigan (609)
Open (28,315)
Owned by railroad (4,048)
Railroad (4,075)
| Riveted (1,011)
Saginaw County, Michigan (24)
Through truss (9,210)
Timber stringer (1,859)
Truss (23,574)
Warren through truss (928)
Warren through truss with sub-panels (33)
Warren truss (3,961)
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