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
- 930 more...
- 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
- ItemBB022982 - Spokane, Portland and Seattle Railway Engineering Drawing: Piers/Abutments, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022983 - Spokane, Portland and Seattle Railway Engineering Drawing: Piling Plan, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- ItemBB022984 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan/Elevation, Bridge E20.1 - Highway 26, South of Bowers Junction, Oregon, undated
- 2979 more...