Nehalem River

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The Nehalem River is a coastal river draining the Oregon Coast Range in the northwest corner of the state. The river resides in one of the wettest areas in the continental United States with areas of the drainage receiving over 100-inches of precipitation per year.

The river features many crossings that provide representative examples of early bridge technologies utilized in the state of Oregon.

Bridge Lane Bridge (Private) (Clatsop County, Oregon)
Polygonal Warren pony truss with alternating verticals bridge over North Fork Nehalem River on Bridge Lane
Open to traffic

East Fork Nehalem River, Scappoose Vernonia Rd (Columbia County, Oregon)
Lost Pony truss bridge over East Fork Nehalem River on Scappoose Vernonia Road
Replaced by a new bridge in 1952

Mohler Bridge (Tillamook County, Oregon)
Built 1926
Polygonal Warren pony truss bridge over Nehalem River on OR 53
Open to traffic

Nehalem River Bridge (Clatsop County, Oregon)
Built 1939
Concrete arch bridge over Nehalem River on US 26
Open to traffic

Nehalem River Bridge (Columbia County, Oregon)
Built 1938
Parker through truss bridge over Nehalem River on OR 47 in Vernonia
Open to traffic

Nehalem River Bridge (Columbia County, Oregon)
Built 1973
Stringer bridge over Nehalem River on Timber Road
Open to traffic

Nehalem River Bridge (Tillamook County, Oregon)
Built 1922, Replaced with post-tensioned box girder in 1984.
Lost swing bridge over Nehalem River
No longer exists

North Fork Nehalem River Bridge (Clatsop County, Oregon)
Built 1937
Warren deck truss bridge over North Fork Nehalem River on OR 53
Open to traffic

POTB - Nehalem River Bridge (Tillamook County, Oregon)
Originally built for the Central Pacific over the Truckee River at Verdi, California.
Through truss bridge over Nehalem River on Port of Tillamook Bay Railroad
Open

POTB - Nehalem River Bridge No. 2 (Tillamook County, Oregon)
Through truss bridge over Nehalem River on Port of Tillamook Bay Railroad
Abandoned