| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Great Porcupine Creek Bridge | CR 103 over Great Porcupine Creek | Open to traffic | Pony truss | 1912 | -- | 40.0 ft. | 42.0 ft. |
| Musselshell River Bridge | CR 118 over Musselshell River | Open to traffic | Pony truss | 1930 | -- | 120.1 ft. | 140.1 ft. |
| Rosebud Creek Bridge | MT 446 over Rosebud Creek | No longer exists | Truss | 1930 | 2005 | -- | 123.0 ft. |