Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 920 more...
- ItemBB022965 - Spokane, Portland and Seattle Railway Engineering Drawing: Steel Details, Bridge E17.3 - Underpass, Bowers Junction, Oregon, 1950
- ItemBB022966 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - 24 Foot Span, Bridge E17.3 - Underpass, Bowers Junction, Oregon, undated
- ItemBB022967 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutments, Bridge E17.3 - Underpass, Bowers Junction, Oregon, undated
- ItemBB022968 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan/Elevation, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022969 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutment Details, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022970 - Spokane, Portland and Seattle Railway Engineering Drawing: Pier Details, Bridge E20.1 - Underpass, South of Bowers Junction, Oregon, undated
- ItemBB022971 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Post/Chord, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB022972 - Spokane, Portland and Seattle Railway Engineering Drawing: Wall Details, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022974 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plan, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- 2989 more...