| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Beaver Creek Bridge | OR 47 over Beaver Creek | Open to traffic | Timber stringer | 1932 | -- | -- | 47.9 ft. |
| Dennis L. Edwards Tunnel | US 26 under | Open to traffic | Tunnel | 1940 | -- | -- | 799.9 ft. |
| Gaston Slough Bridge | Old OR 47 over Gaston Slough | Open to traffic | Timber stringer | 1934 | -- | 19.0 ft. | 58.1 ft. |
| West Fork Dairy Creek Bridge | OR 47 over West Fork Dairy Creek | Open to traffic | Timber stringer | 1936 | -- | -- | 63.0 ft. |
| West Fork Dairy Creek Bridge | OR 47 over West Fork Dairy Creek | Open to traffic | Timber stringer | 1937 | -- | -- | 86.9 ft. |
| West Fork Dairy Creek Bridge | US 26 over West Fork Dairy Creek | Open to traffic | Timber stringer | 1940 | -- | 21.0 ft. | 105.0 ft. |
| West Fork Dairy Creek Bridge | US 26 over West Fork Dairy Creek | Open to traffic | Timber stringer | 1940 | -- | -- | 88.9 ft. |