| Name | Location | Status | Design | Year Built | Year Lost | Span Length (ft.) | Total Length (ft.) |
|---|---|---|---|---|---|---|---|
| Arch Cape Creek Bridge | US 101 over Arch Cape Creek | Open to traffic | Timber stringer | 1937 | -- | 29.0 | 166.0 |
| Arch Cape Tunnel | US 101 under Arch Cape | Open to traffic | Tunnel | 1937 | -- | -- | 1228.1 |
| Astoria-Megler Bridge | US 101 over Columbia River | Open to traffic | Warren through truss | 1966 | -- | 1232.0 | 21677.0 |
| Astoria-Megler Ferry | Ferry over Columbia River | Replaced by the Astoria-Megler Bridge | Ferry | 1921 | 1966 | -- | 21120.0 |
| Austins Point Half Viaduct | US 101 over Austins Point | Open to traffic | Timber stringer | 1933 | -- | 131.9 | 131.9 |
| Bear Creek Bridge | Old Highway 30 over Bear Creek | Open to traffic | Concrete tee beam | 1923 | -- | 32.2 | 63.0 |
| Broadway Bridge | W. Broadway over Necanicum River | Open to traffic | Luten arch | 1924 | -- | 43.0 | 152.0 |
| East Fork Humbug Creek Bridge | US 26 over East Fork Humbug Creek | Open to traffic | Timber stringer | 1934 | -- | 79.1 | 79.1 |
| Gnat Creek Bridge | US 30 over Gnat Creek | Open to traffic | Concrete stringer | 1929 | -- | 49.9 | 165.0 |
| Lewis & Clark River Bridge | Business US 101 over Lewis & Clark River | Open to traffic | Other | 1924 | -- | 112.0 | 870.0 |
| Neawanna Creek Bridge | U.S. 101 over Neawanna Creek | Open to traffic | Concrete deck girder | 1930 | -- | 52.5 | 210.0 |
| Necanicum River Bridge | Ave G over Necanicum River | Open to traffic | Stringer | 1952 | -- | 29.9 | 211.0 |
| Nehalem River Bridge | US 26 over Nehalem River | Open to traffic | Open-spandrel arch | 1939 | -- | 231.0 | 617.0 |
| New Youngs Bay Bridge | US 101 over Youngs Bay | Open to traffic | Other | 1964 | -- | 152.5 | 4208.3 |
| North Fork Nehalem River Bridge | OR 53 over North Fork Nehalem River | Open to traffic | Warren deck truss | 1937 | -- | -- | 165.0 |
| North Fork Quartz Creek Bridge | U.S. 26 over North Fork Quartz Creek | Open to traffic | Steel stringer | 1939 | -- | 105.0 | 835.0 |
| S.P. & S. - Youngs Bay Bridge | Seattle, Portland and Spokane Railroad over Youngs Bay | Removed | Timber stringer | 1895 | 1978 | 260.0 | 4200.0 |
| Skiberene Bridge | U.S. 101 and U.S. 26 over Necanicum River | Open to traffic | Stringer | 1930 | -- | 67.9 | 171.9 |
| Soapstone Creek Bridge | OR 53 over Soapstone Creek | Open to traffic | Open-spandrel arch | 1928 | -- | -- | 151.9 |
| Wahkiakum Ferry | Ferry over Columbia River | Open to traffic | Ferry | 1962 | -- | -- | -- |
| West Fork Humbug Creek Bridge | US 26 over West Fork Humbug Creek | Open to traffic | Timber stringer | 1934 | -- | 59.1 | 59.1 |
| Willuski River Bridge | OR 202 over Willuski River | Open to traffic | Deck plate girder | 1980 | -- | 63.0 | 484.9 |
| Youngs Bay Bridge | US 101 Bus. over Youngs Bay | Open to traffic | Other | 1921 | -- | 166.4 | 1845.3 |