Bridge incorporating a natural rock outcropping or other formation as a full or partial pier.
Natural Pier Bridge
(Mineral County, Montana)Built 1916; rehabilitated 1999Through truss bridge over Clark Fork on CR 089Open to traffic
Port Wine Little Bridge
(Plumas County, California)Built 1936A-frame steel stringer bridge over Slate Creek on Port Wine RoadOpen to traffic
Port Wine Steel Bridge
(Plumas County, California)Built 1910Through truss bridge over Slate Creek on Port Wine Road South of La PorteOpen to traffic