| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Hump Creek Bridge | IRR County Road over Hump Creek | Open to traffic | Pony truss | 1930 | -- | 39.0 ft. | 42.0 ft. |
| Missouri River Bridge | US 12 over Missouri River (Oahe Lake) | Open to traffic | Through truss | 1959 | -- | 449.8 ft. | 5058.6 ft. |
| Mobridge Railroad Bridge | BNSF Railroad over Missouri River (Oahe Lake) | Open to traffic | Warren through truss | -- | -- | -- | -- |