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
- 984 more...
- ItemBB023032 - Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023033 - Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023034 - Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Floor System, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023035 - Spokane, Portland and Seattle Railway Engineering Drawing: Truss Span Stress Sheet, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023036 - Spokane, Portland and Seattle Railway Engineering Drawing: Bearing Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023037 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Slab Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023038 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Steel Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023039 - Spokane, Portland and Seattle Railway Engineering Drawing: Handrail Details, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023040 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Waterproofing/Drain, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- 2925 more...