Cheek's Tavern Bridge[Map] Stone arch bridge over Red River on Old US 31, (Dixie Highway/Louisville to Nashville Turnpike) Open to pedestrians Built ca. 1841 as part of the Louisville to Nashville Turnpike, a toll road for stage coaches.
CSX Ridgetop Tunnel[Map] Tunnel under town of Ridgetop, Tennessee on CSX Railroad Open to traffic Built 1905 by the Nashville, Chattanooga & St. Louis RR (predecessor to the Louisville & Nashville RR, later CSX).. was longest free standing tunnel in the world when completed.
Sulfur Fork Bridge[Map] Pratt through truss bridge over Sulfur Fork on an old alignment of the Old Clarksville-Springfield Rd. in Port Royal State Park Open to pedestrians Built 1890 by the Converse Bridge Company
Sulfur Fork Station Bridge[Map] Pratt pony truss bridge over Sulfur Fork Creek on a private driveway Open to traffic Built by Champion Bridge Company