US 16

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Chamberlain Bridge (Brule County, South Dakota)
Built 1925 as a four-span bridge; reconstructed 1953 as a double-barreled five span bridge incorporating five spans from a bridge at Wheeler
Double-barreled through truss bridge over the Missouri River (Francis Case Lake) on Business Loop I-90 at Chamberlain
Undergoing rehabilitation in 2010

Cub Creek Bridge (Park County, Wyoming)
Built 1922; rehabilitated 1995
Arch bridge over Cub Creek on East Entrance Road
Open to traffic

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

Keystone Interchange Bridge (Pennington County, South Dakota)
Built 1968
Wooden arch bridge on US 16A
Open to traffic

Old MN 16 Bridge (Fillmore County, Minnesota)
Built 1910
Abandoned camelback through truss bridge over Root River on State Hwy 16?
Abandoned

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

US 14 Tunnel (Park County, Wyoming)
Built 1960
Tunnel on US 14
Open to traffic

US 14 Tunnel (Park County, Wyoming)
Built 1960
Tunnel on US 14/16/20
Open to traffic

US 14 Tunnel (Park County, Wyoming)
Built 1960
Tunnel on US 14/16/20
Open to traffic

US 16A Tunnel (Pennington County, South Dakota)
Tunnel on US 16A
Open to traffic