| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Adkisson Bridge | Boyd Loop Road over 15 Mile Creek | Open to traffic | Arch | 1925 | -- | -- | 148.0 ft. |
| Columbia River Bridge | US 197 over Columbia River | Open to traffic | Through truss | 1954 | -- | 576.1 ft. | 3345.3 ft. |
| Deschutes River Bridge | US 197 over Deschutes River | Open to traffic | Deck truss | 1929 | -- | 200.0 ft. | 826.2 ft. |
| Dry Canyon Creek Bridge | HWY 100 over Dry Canyon Creek | Open to traffic | Arch | 1921 | -- | -- | 101.1 ft. |
| John Day River Bridge | OR 218 over John Day River | Open to traffic | Steel through arch | 1975 | -- | -- | 471.2 ft. |
| Mill Creek Bridge | US 26 over Mill Creek | Open to traffic | Deck truss | 1948 | -- | -- | 536.1 ft. |
| Mosier Creek Bridge | HWY 100 over Mosier Creek | Open to traffic | Open-spandrel arch | 1920 | -- | 110.0 ft. | 182.1 ft. |
| Mosier Tunnel | Historical Columbia River Highway Trail under Mosier Tunnel | Open to pedestrians | Tunnel | 1920 | -- | 352.1 ft. | 352.1 ft. |
| Sevenmile Hill Road Bridge | Sevenmile Hill Road over Sevenmile Creek | Open to traffic | Timber stringer | 1940 | -- | -- | 25.9 ft. |