Beaver Creek Bridge[Map] Tee-beam bridge over Beaver Creek on Old Hwy 30 Open to traffic Built 1930
Beaver Creek Bridge[Map] Lost Warren pony truss bridge over Beaver Creek on Kukkala Road Replaced by new bridge Built in 1915, Moved to Kukkala Road in 1965, Replaced in 1998 by a pre-cast slab bridge.
Beaver Creek Bridge[Map] Concrete tee beam bridge over Beaver Creek on Old Hwy 30 Open to traffic Built 1918
Beaver Creek Bridge[Map] Concrete pony/through girder bridge over Beaver Creek on Beaver Falls Road (Old US 30) Open to traffic Built 1918
Beaver Creek Bridge[Map] Concrete tee beam bridge over Beaver Creek on Beaver Falls Road (Old US 30) Open to traffic Built 1918
C&NVR - Bridge No. 8[Map] Lost Timber stringer bridge on Columbia & Nehalem River Railroad Destroyed by disaster Built 1913 by the Kerry Timber Company; Abandoned 1938; Lost between 1938 and 2002
C&NVR - Kerry Tunnel[Map] Lost Tunnel on Columbia & Nehalem River Railroad Collapsed Built 1915
C&NVR - South Olsen Creek Trestle[Map] Lost Timber stringer bridge over South Olsen Creek on Columbia & Nehalem River Railroad No longer exists Built 1913; Lost 1938
C&NVR - US-30 and PNWR bridge[Map · Street View] Timber stringer bridge over US-30 and PNWR on Columbia and Nehalem River Railroad No longer exists Built 1913 by the Kerry Timber Company; Removed 1938
J. P. West Road Bridge[Map · Street View] Wooden bridge over South Fork Scappoose Creek on J. P. West Road in Scappoose Open to traffic Built 1925; rehabilitated 1977
Lewis & Clark Bridge[Map · Street View] Cantilevered through truss bridge over Columbia River on WA 433 at Longview Open to traffic Built 1929; rehabilitated 2003
Lyons Creek Bridge[Map] Timber stringer bridge over Lyons Creek on OR 202 Replaced by a pre-cast concrete girder bridge in 2006 Built 1934, Replaced 2006
McDonald Bridge[Map] Lost pony truss bridge over Milton Creek on Milton Way in St. Helens Replaced by a pre-cast concrete slab bridge in 2004 Built 1914, Replaced 2004
Milton Creek Bridge[Map] Bailey pony truss bridge over Milton Creek on North Railroad Ave Open to authorized vehicles only Built 1999
PNWR - Clatskanie River Bridge[Map · Street View] Warren through truss swing bridge over Clatskanie River on Portland & Western Railroad (PNWR) in Clatskanie Open to traffic Built 1897