Nassau County

CSX - St. Marys - River - Bridge   [Map]
Warren through truss bridge over St. Marys River on double railroad track of CSX Railroad
Open to traffic
Originally built for the Atlantic Coast Line Railroad
FCRD - Amelia - River - Swing - Bridge   [Map · Street View]
Polygonal Warren through truss bridge over Amelia River on First Coast Railroad (formerly Seaboard Air Line Railway)
Open to traffic
Built 1920 by the Virginia Bridge & Iron Co.
FCRD - St. Mary's - River - Bridge   [Map · Street View]
Deck plate girder bridge over St. Mary's River on First Coast Railroad
Open to traffic
Built 1926 by the Mt. Vernon Bridge Co. for the Seaboard Air Line Railway
Nassa - Sound - Bridge   [Map]
Lost Deck girder bridge over Nassa Sound on 8th Street Buccaneer Trail
No longer exists
St. Mary's - River - Bridge   [Map · Street View]
Swing bridge over St. Mary's River on US 17
Open to all traffic.
Built 1927, rehabilitated 2005.