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
- 927 more...
- 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
- ItemBB022975 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, 1950
- ItemBB022976 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plate Girder (DPG) Spans, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022977 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022978 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge E22.1 - Underpass - Detail, South of Bowers Junction, Oregon, undated
- ItemBB022979 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plans, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022980 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail 36 Foot Span, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022981 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plans, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- 2982 more...