Astoria-Megler Bridge[Map · Street View] Continuous rigid-cantilever Warren through truss bridge over Columbia River on US 101 in Astoria Open to traffic Built 1966
Astoria-Megler Ferry[Map · Street View] Lost Ferry across Columbia River on U.S. 101 Replaced by the Astoria-Megler Bridge Established 1921, Acquired by Oregon Highway Department 1946, Eliminated 1966
Bear Creek Bridge[Map] Concrete tee beam bridge over Bear Creek on Old Highway 30 in Svenson Open to traffic Built 1923
Bridge Lane Bridge (Private)[Map] Polygonal Warren pony truss with alternating verticals bridge over North Fork Nehalem River on Bridge Lane Open to traffic
Broadway Bridge[Map · Street View] Concrete Luten arch bridge over Necanicum River on W. Broadway in Seaside Open to traffic Built 1924
John Day River Bridge 37-04-01x[Map] Lost Howe through truss and pony lift bridge over John Day River on Columbia River Highway Replaced by a new bridge Built 1918; Replaced 1933
Lewis & Clark River Bridge[Map · Street View] Bascule lift bridge over Lewis & Clark River on Business US 101 Open to traffic Built 1924, West approach replaced 2015
Lewis & Clark River Bridge[Map] Lost Through truss swing-span bridge over Lewis and Clark River on US 101 Replaced by a new bridge Built circa 1910; Replaced 1924
SPS - Astoria Trestles[Map] Lost timber stringer bridges over inlet on SP&S Rwy Removed but, mostly replaced with fill
SPS - Skipanon River Bridge[Map] Deck plate girder swing bridge over Skipanon River on Spokane, Portland & Seattle Railway No longer exists Built 1916; Removed 1986
SPS - Youngs Bay Bridge[Map] Lost swing span bridge over Youngs Bay on Seattle, Portland and Spokane Railroad Removed Built 1895, Abandoned 1978; Removed 1986
Supply Creek Bridge[Map] Timber stringer bridge over Supply Creek on Ziak-Gnat Creek Road Open to traffic
Trestle Bay Trestle[Map] Abandoned bridge over Jetty lagoon Derelict/abandoned with deck removed
Wahkiakum County Ferry[Map] Ferry across Columbia River on Westport Ferry Road/SR 409 Open to traffic Ferry service started in 1925. Wahkiakum County took over running the ferry in 1962.
Walluski River bridge (1939)[Map] Lost Pony/through plate girder swing bridge over Willuski River on OR-202/Nehalem Hwy Replaced by a new bridge Built 1939