| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Cheyenne River Bridge | CN14-9 over Cheyenne River | Open to traffic | Pennsylvania through truss | ca. 1915 | -- | -- | 132.9 ft. |
| Hat Creek Bridge | County road over Hat Creek | Open to traffic | Truss | 1920 | -- | -- | 40.0 ft. |
| Lance Creek Bridge | WY 271 over Lance Creek | Open to traffic | Timber stringer | 1940 | -- | -- | 191.0 ft. |
| Oil Creek Bridge | WY 271 over Oil Creek | Open to traffic | Timber stringer | 1940 | -- | -- | 59.1 ft. |