Marathon, Florida
Knight Channel Bridge (Monroe County, Florida)
Built 1912; rehabilitated 1938Girder bridge over Knight Channel on Pigeon Key AccessClosed to all traffic
Old Seven Mile Bridge (Monroe County, Florida)
Originally built by the railroad in 1912. Replaced 1982 with a modern bridge, but most of the original bridge (with a few spans removed for shipping) intact. Part of the bridge now used for fishing.Concrete Arch and Deck Girder bridge over Moser Channel on Old US 1 with a through truss swing span (removed), now used as a Fishing Pier and observation deck in Marathon