Powell County

Big - Blackfoot - River - Bridge   [Map]
Pony truss bridge over Big Blackfoot River on CR 104
Open to traffic
Built 1931
Big - Blackfoot - River - Bridge   [Map]
Through truss bridge over Big Blackfoot River on CR 111
Open to traffic
Built 1914
Blackfoot - River - Bridge   [Map]
Lost truss bridge over Blackfoot River on MT 141
No longer exists
Built 1936; replaced 2004
Clark - Fork - Bridge
Wooden truss bridge over Clark Fork on Service Road
Open to traffic
Built 1930; rehabilitated 1982
Clark - Fork - Bridge   [Map]
Pony truss bridge over Clark Fork on CR 019
Open to traffic
Built 1910; rehabilitated 2003
Garrison - Bridge   [Map]
Lost through truss bridge over Clark Fork on Rock Creek Road in Garrison
Replaced by a new bridge
Built 1912; replaced 2006
Little - Blackfoot - River - Bridge   [Map · Street View]
Pratt through truss bridge over Little Blackfoot River on CR 52 in Avon
Open to traffic
Built 1908; rehabilitated 1999
Little - Blackfoot - River - Bridge   [Map · Street View]
Pony truss bridge over Little Blackfoot River on CR 249
Closed to all traffic
Built 1915
Little - Blackfoot - River - Bridge   [Map · Street View]
Pony truss bridge over Little Blackfoot River on CR 186
Open to traffic
Built 1914
MILW - Garrison - Tunnel   [Map]
Abandoned tunnel on Railroad (MILW)
Abandoned
Built 1908
MRL - Garrison - Tunnel   [Map]
Tunnel on Montana Rail Link
Open to traffic
Built 1882, widened 1909
MRL - Mullan - Tunnel   [Map]
Bridge over Mullan Pass/Continental Divide on Montana Rail Link
Open to traffic
Built 1883, enlarged and shortened 2009-10
MRL - Phosphate - Branch - Clark - Fork - Bridge   [Map · Street View]
Pony/through plate girder bridge over Clark Fork on Phosphate Branch Railroad
North - Fork - Blackfoot - River - Bridge   [Map]
Lost through truss bridge over North Fork Blackfoot River on CR 001
No longer exists
Built 1914; replaced 2000