Spokane & Inland Empire Railroad

Reporting mark: S&IE
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

GN - Harpole Covered Bridge 47-38-01 (Whitman County, Washington)
Replaced prior bridge 1922, Truss housed 1928, Converted to vehicle usage 1967; Burned in wildfires Sept. 7, 2020
Howe through truss covered railroad bridge, over Palouse River
Destroyed by fire

GN - Palouse River Bridge (Whitman County, Washington)
Removed in the 30s
Lost Howe through truss bridge over Palouse River Bridge on Great Northern Railway

John Wayne Pioneer Trail - Seabury Bridge (Whitman County, Washington)
Built 1913
Pratt through truss bridge over abandoned S&IE RR on abandoned Milwaukee Road
Open to traffic