Historic Bridges of the U.S. | Sweet Grass County

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Boulder River Bridge
Pony truss bridge over Boulder River on CR 102
Open to traffic
Built 1931; rehabilitated 1991

Boulder River Bridge
Pony truss bridge over Boulder River on CR 103 in Big Timber
Open to traffic
Built 1940

Boulder River CR 116 Bridge
Lost pony truss bridge over Boulder River on CR 116
No longer exists
Built ca. 1930; replaced 2002

Sweetgrass Creek Bridge
Through truss bridge over Sweetgrass Creek on CR 007
Open to traffic
Built 1910

Sweetgrass Creek Bridge
Pony truss bridge over Sweetgrass Creek on CR 014
Open to traffic
Built 1910; rehabilitated 1964

West Boulder River Bridge
Pony truss bridge over West Boulder River on CR 143
Open to traffic
Built 1912

Yellowstone River Bridge
Lost through truss bridge over Yellowstone River on CR 028
No longer exists
Built 1911; replaced 2000