June 20, 2022
Cove Ditch Bridge (Stillwater County, Montana)
Bridge over Cove Ditch on an abandoned roadJune 20, 2022: New photos from James McCray
NP - Shields River Bridge #2 (Park County, Montana)
Abandoned pratt through truss bridge over Shields River on Abandoned Northern Pacific RailroadJune 20, 2022: Updated by James McCray: Updated location
Dead Horse Road Bridge (Park County, Montana)
Polygonal Pratt through truss bridge over Shields River on Dead Horse Road (formerly old US 89, but currently a private driveway).June 20, 2022: New photos from James McCray
Old US 89 Bridge (Cascade County, Montana)
Bridge over an unnamed creek on a private drivewayJune 20, 2022: New photos from James McCray
Old Cushman Bridge (Cascade County, Montana)
Polygonal Warren pony truss bridge over Belt Creek on a private drivewayJune 20, 2022: New photos from James McCray
Johnston Street Bridge (Cascade County, Montana)
Queenpost pony truss bridge over Belt Creek on Johnston StreetJune 20, 2022: New photos from James McCray
Belt Creek Bridge (Cascade County, Montana)
Pratt through truss bridge over Belt Creek on a private drivewayJune 20, 2022: New photos from James McCray
March 20, 2022
MRL - Nimrod Tunnel (Granite County, Montana)
Tunnel on Montana Rail LinkMarch 20, 2022: Photo imported by Dave King
BNSF - Sheep Creek Trestle (Flathead County, Montana)
Deck plate girder bridge over Sheep Creek on BNSF Hi-Line SubdivisionMarch 20, 2022: Photo imported by Dave King
BNSF - Java Trestle (Flathead County, Montana)
Pratt deck truss bridge over Middle Fork Flathead River & Java Creek on BNSF Hi-Line SubdivisionMarch 20, 2022: Photo imported by Dave King
BNSF - Midvale Creek Bridge (Glacier County, Montana)
Deck plate girder bridge over Midvale Creek & Trestle Trail on BNSF Hi-Line SubdivisionMarch 20, 2022: Photo imported by Dave King
BNSF - Tunnel 3.8 (Flathead County, Montana)
Tunnel on BNSF Hi-Line SubdivisionMarch 20, 2022: Photo imported by Dave King
Heron Bridge (Sanders County, Montana)
Deck truss bridge over Cabinet Gorge Reservoir on CR 004 in HeronMarch 20, 2022: Updated by Dave King: Added build date
MRL - Clark Fork River Bridge #10 (Sanders County, Montana)
Warren Deck truss bridge over Clark Fork River on Montana RailLinkMarch 20, 2022: Photo imported by Dave King
August 25, 2021
BBWA Canal Flume (Yellowstone County, Montana)
Timber stringer bridge over Canyon Creek on BBWA CanalAugust 25, 2021: New photo from Geoff Hubbs
BBCA Canal Flume (Yellowstone County, Montana)
Lost Timber stringer bridge over Canyon Creek on BBCA CanalAugust 25, 2021: Added by Geoff Hubbs
Tongue River Bridge (Custer County, Montana)
Lost Deck plate girder bridge over Tongue River on US 94 Main StreetAugust 25, 2021: New photos from Geoff Hubbs
Tongue River Bridge (Rosebud County, Montana)
Lost Through truss bridge over Tongue River on Tongue River RoadAugust 25, 2021: New photo from Geoff Hubbs
GN - Ft. Peck Temporary Bridge (McCone County, Montana)
Lost Through truss bridge over Missouri River on Great Northern RailwayAugust 25, 2021: Updated by Luke: Corrected builder to pre-existing category
GN - Ft. Peck Temporary Bridge (McCone County, Montana)
Lost Through truss bridge over Missouri River on Great Northern RailwayAugust 25, 2021: New photo from Geoff Hubbs
BNSF - Yellowstone River Bridge (Yellowstone County, Montana)
Pratt Through truss bridge over Yellowstone River on BNSF RailwayAugust 25, 2021: New photo from Geoff Hubbs
Higgins Avenue Bridge (Old) (Missoula County, Montana)
Lost Through truss bridge over Clark Fork on Higgins AvenueAugust 25, 2021: New photo from Geoff Hubbs
August 4, 2021
Musselshell River Bridge (Wheatland County, Montana)
Lost Parker through truss bridge over Musselshell River on US 191August 4, 2021: Updated by Tony Dillon: Added truss type
Musselshell River Bridge (Wheatland County, Montana)
Lost Parker through truss bridge over Musselshell River on US 191August 4, 2021: New photo from Geoff Hubbs
East Bridge (1935) (Yellowstone County, Montana)
Lost Through truss bridge over Yellowstone River on US 87August 4, 2021: New photo from Geoff Hubbs
Twin Bridges Bridge (Madison County, Montana)
Lost Pony truss bridge over Big Hole River on Melrose-Twin Bridges County RdAugust 4, 2021: New photo from Geoff Hubbs
Dillon Canal Bridge (Beaverhead County, Montana)
Lost Steel stringer bridge over Dillon Canal on streetAugust 4, 2021: New photo from Geoff Hubbs
July 31, 2021
MILW - Cyr Bridge (Mineral County, Montana)
Lost Warren deck truss bridge over Clark Fork River on Chicago, Milwaukee, St. Paul & Pacific RailroadJuly 31, 2021: New photos from John Bernhisel
Cyr Bridge (Mineral County, Montana)
Deck truss bridge over Clark Fork on CR 170July 31, 2021: New photos from John Bernhisel
Clark Fork Bridge (Mineral County, Montana)
Through truss bridge over Clark Fork on CR 170 in RiverbendJuly 31, 2021: New photos from John Bernhisel
Milwaukee Trail - Blacktail Tunnel #1 (Silver Bow County, Montana)
Abandoned tunnel on Chicago, Milwaukee, St. Paul & Pacific RailroadJuly 31, 2021: Updated by Luke: Noted conversion to trail
Milwaukee Trail - Blacktail Trestle (Silver Bow County, Montana)
Abandoned deck plate girder bridge over Blacktail Creek/Roosevelt Drive on Railroad (MILW)July 31, 2021: Updated by Luke: Noted conversion to trail via pictures from John Bernhisel
Milwaukee Trail - Blacktail Trestle (Silver Bow County, Montana)
Abandoned deck plate girder bridge over Blacktail Creek/Roosevelt Drive on Railroad (MILW)July 31, 2021: New photos from John Bernhisel