Pigtail Bridges

Iron Mountain Road Pigtail Bridge #2 (Pennington County, South Dakota)
Built 1992
Steel stringer bridge over US 16A, on US 16A
Open to traffic

Iron Mountain Road Pigtail Bridge #3 (Pennington County, South Dakota)
Built 1985
Steel stringer bridge over US 16A, on US 16A
Open to traffic

Pigtail Bridge (Custer County, South Dakota)
Built 1930; Subsequent work 1940; rehabilitated 2007
Steel stringer bridge over SD Route 87 on SD Route 87
Open to traffic

Pigtail Bridge (Pennington County, South Dakota)
Built 1976
Timber arch bridge over US 16A, on US 16A
Open to traffic