Oregon-Washington Railroad & Navigation Co.

Reporting mark: OWR&N

BNSF - Willamette River Bridge (Multnomah County, Oregon)
1908 Built with swing span, 1989 Vertical lift replaces swing span
Vertical lift bridge over Willamette River on BNSF Railway Line in Portland
Open to traffic

BNSF/Fish Lake Trail Overpass (Spokane County, Washington)
Built around 1912 to carry SP&S traffic to Northern Pacific Railway in Marshall over Oregon-Washington Railroad & Navigation co.
Slab bridge over Fish Lake Trail on BNSF Scribner-Marshall crossover
Open to traffic

Fish Lake Trail - 16th Avenue Overpass (Spokane County, Washington)
Built 1912 by the Oregon-Washington Railroad and Navigation Co. To Union Pacific in 1936 merger. Abandoned 1978. Converted for trail use in 2009.
Pony/through plate girder bridge over 16th. Avenue on Fish Lake Trail
Open to pedestrians only

Fish Lake Trail - I90 Exit 279 Overpass (Spokane County, Washington)
Built 1912 by the Oregon-Washington Railroad and Navigation Co. To Union Pacific in 1936 merger. Abandoned 1978. Converted for trail use in 2009.
Pony/through plate girder bridge over Interstate 90 Exit 279 ramp on Fish Lake Trail
Open to pedestrians only

Fish Lake Trail - Marshall Road Overpass (Spokane County, Washington)
Built 1909 bu the North Coast Railroad. Merged into Oregon-Washington Railroad & Navigation Co 1910. Merged into Union Pacific 1936. Abandoned 1978. Rehab for pedestrian use 2009.
Slab bridge over Marshall Road on Fish Lake Trail
Open to pedestrians only

Fish Lake Trail - Thorpe Road Overpass (Spokane County, Washington)
Built in 1917 by the Oregon-Washington Railroad & Navigation company. To Union Pacific in 1936. Abandoned 1978. Fish Lake Trail paved 2009. Original wooden trestle built here circa 1912.
Closed-spandrel arch bridge over Thorpe Road on Fish Lake Trail
Open to pedestrians only

Fort Columbia Tunnel (Pacific County, Washington)
Built 1932
Tunnel on US 101
Open to traffic

Iron Bridge (Spokane County, Washington)
Built 1911, Closed 1973, Converted to pedestrian bridge 2012
Triple-intersection lattice through truss bridge over Spokane River on Pedestrian Pathway
Open to pedestrians only

ORW&N Deschutes River bridge (Sherman County, Oregon)
Lost Warren through truss bridge over Deschutes river
Replaced by a new bridge

ORW&N Pine Creek tunnel (Baker County, Oregon)
Lost Bridge
Demolished

ORWN - Weatherby Tunnel (Old) (Baker County, Oregon)
Built 1884 south portal demolished by highway construction in 1929
Lost Tunnel
Demolished

OSL - Snake River Pegram Truss Bridge (Malheur County, Oregon)
Built 1894; Replaced 1914, some trusses relocated
Lost Pegram through truss bridge over Snake River on Oregon Short Line Railroad
Replaced by a new bridge

OWR&N - Chehalis River Bridge (Grays Harbor County, Washington)
Built 1911
Pratt through truss bridge over Chehalis River on Oregon-Washington Railroad & Navigation Co.
Removed

OWR&N Copperfield tunnel (Baker County, Oregon)
Built 1910
Tunnel on Former ORW&N railway now raod
Open to traffic

OWR&N Palouse Railroad Bridge (Whitman County, Washington)
Abandoned baltimore through truss bridge over Palouse River on Abandoned Oregon-Washington Railroad
Derelict/abandoned

Palmer Lumber Company Sawmill Bridge (Union County, Oregon)
Built 1907 replaced 1940 when Lumber mill was tore down
Lost Timber stringer bridge over Grande Ronde River and log pond on Oregon Washington Railway and Navigaton Company Railroad over Grnade Ronde River
No longer exists

PCC - South Fork Palouse River Bridge (Whitman County, Washington)
Built 1899
Pratt through truss bridge over South Fork Palouse River on Palouse River & Coulee City Railroad
Open to traffic

PCC - South Fork Palouse River Bridge (Whitman County, Washington)
Built 1899 by the Oregon Railroad & Navigation Co. (OR&N)
Pratt through truss bridge over South Fork Palouse River on Palouse River & Coulee City Railroad
Open to traffic

Steel Bridge (Multnomah County, Oregon)
Built 1912
Vertical-lift through truss bridge over Willamette River on Pacific Highway West & MAX Blue Line in Portland
Open to highway and light rail traffic on upper deck; bicycle/pedestrian and rail traffic on lower deck

Steel Bridge (Old) (Multnomah County, Oregon)
Built 1888, Replaced 1912
Lost Truss bridge over Willamette river on Oregon Railway and Navigation Co. & Road
Replaced by a new bridge

UP - Alto Arch (Columbia County, Washington)
Built 1917
Closed-spandrel arch bridge over Stonecipher Road on Union Pacific Railroad
Open to road traffic; Railway abandoned 1946

UP - Eagle Creek Bridge (Multnomah County, Oregon)
Built 1935
Pratt through truss bridge over Eagle Creek on Union Pacific Railroad
Open to traffic

UP - John Day River Bridge (Old) (Sherman County, Oregon)
Built 1907; Replaced 1967
Lost Bridge over John Day River on Union Pacific Railroad
Replaced by a new bridge

UP - Joso High Bridge (Walla Walla County, Washington)
Built 1914
Massive deck truss bridge over Snake River on the Union Pacific Railroad
Open to railroad traffic

UP - Ninth Avenue Overpass (Spokane County, Washington)
Built 1912 by the Oregon-Washington Railroad and Navigation Co. To Union Pacific in 1936 merger. Abandoned 1978. Removed during Fish Lake Trail construction 2009.
Lost Deck plate girder bridge over Ninth Avenue on Union Pacific RR Ayer Subdivision
Removed but not replaced

UP - Riparia Bridge (Whitman County, Washington)
Built 1889; Removed 1969
Lost Pratt through truss swing bridge over Snake River on Union Pacific Railroad
Removed

UP - Sands Road Overpass (Spokane County, Washington)
Built in 1917 by the Oregon-Washington Railroad & Navigation company. To Union Pacific in 1936. Original railroad bridge in this area built 1889.
Closed-spandrel arch bridge over Sands Road on Union Pacific Wallace Subdivision
Open to traffic

UP - Spokane High Bridge (Spokane County, Washington)
Built in 1913 as part of the Oregon-Washington Railroad & Navigation companys' Spokane-Ayer cutoff. Abandoned in 1973 due to EXPO '74 line relocations, and removed in 1977-78.
Lost Deck plate girder bridge over Latah Creek & Spokane River on Union Pacific RR Ayer Subdivision
Removed but not replaced

UP - Spokane River Bridge (Spokane County, Washington)
Built in 1914 to carry a double track rail line of the Oregon-Washington Railroad and Navigation Company into Spokane Union Station. Removed in 1973 during preparations for EXPO 74.
Lost Deck truss bridge over Spokane River, Monroe Street bridge on OWR&N double track railroad
Removed but not replaced

UP - Tanner Creek Viaduct (Multnomah County, Oregon)
Built 1935
Closed-spandrel arch bridge over Tanner Creek on Union Pacific Railroad in Bonneville
Open to traffic

UP - Toothrock Tunnel (Multnomah County, Oregon)
Built 1936 with relocation of RR do to Bonneville dam
Tunnel on Union pacific railroad
Open to traffic

UP/Columbia Plateau Trail Overpass (Spokane County, Washington)
Built 1911 by Oregon-Washington Railroad & Navigation RR over Spokane, Portland & Seattle RR. Steel girder approach on north end built 1936. OWR&N merged into Union Pacific 1936.
Pony/through plate girder bridge over Columbia Plateau Trail & Minnie Creek on Union Pacific RR Ayer Subdivision
Open to traffic

WURR - Cabin Creek Bridge (Union County, Oregon)
Timber stringer over Cabin creek
Open to traffic

WURR - Gordon Creek Trestle (Union County, Oregon)
Bridge over Gordon creek on WURR tracks
Open to traffic

WURR - Howard Creek Trestle (Wallowa County, Oregon)
Built 1910
Timber stringer bridge over howard creek on WURR
Open to traffic

WURR - Looking Glass Creek Bridge (Union County, Oregon)
Built 1910
Timber stringer bridge over Looking glass creek on WURR tracks
Open to traffic

WURR - Rondowa Bridge (Wallowa County, Oregon)
Built 1910
Deck plate girder bridge over Wallowa River on Wallowa Union Railroad
Open to traffic