Security Bridge Co.
Barber Bridge (Golden Valley County, Montana)Built 1911
Lost through truss bridge over Musselshell River on CR 201
Replaced by new bridge
Bundy Bridge (Yellowstone County, Montana)Built 1915
Warren through truss bridge over Yellowstone River on Bundy Road at Pompey's Pillar National Monument
Open to pedestrians
Cobb Creek Bridge (Deuel County, South Dakota)
Built 1908
Pony truss bridge over Cobb Creek on 187th Street, 2.3 mi. east and 1 mi. north of Brandt in Norden Township
Open to traffic
Built 1908
Pony truss bridge over Cobb Creek on 187th Street, 2.3 mi. east and 1 mi. north of Brandt in Norden Township
Open to traffic
Duck Creek Bridge (Yellowstone County, Montana)Built 1915
Lost three-span through truss bridge over Yellowstone River on Route 329
Replaced by new bridge
Greycliff Bridge (Sweet Grass County, Montana)Built 1911
Lost two-span through truss bridge over Yellowstone River on CR 001
Replaced by new bridge
Poor Farm Bridge (Brown County, Minnesota)Built 1907
Lost through truss bridge over Big Cottonwood River on Cottonwood Street in New Ulm
Replaced by new bridge
Toston Bridge (Broadwater County, Montana)Built 1920
Through truss bridge over Missouri River on CR 415 (Old US 287) at Toston
Open to traffic