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
- 963 more...
- ItemBB023010 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E40.3 - Underpass, Oregon, 1952
- ItemBB023011 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E40.3 - Underpass, Oregon, 1952
- ItemBB023012 - Spokane, Portland and Seattle Railway Engineering Drawing: Steel Detail, Bridge E40.3 - Underpass, Oregon, undated
- ItemBB023013 - Spokane, Portland and Seattle Railway Engineering Drawing: Falsework Pile Plan, Bridge E40.3 - Underpass, Oregon, undated
- ItemBB023014 - Spokane, Portland and Seattle Railway Engineering Drawing: Concrete Plan Abutments, Bridge E40.3 - Underpass, South of Tualatin, Oregon, undated
- ItemBB023015 - Spokane, Portland and Seattle Railway Engineering Drawing: Reinforcement Flanges, Bridge E40.3 - Underpass, South of Tualatin, Oregon, undated
- ItemBB023016 - Spokane, Portland and Seattle Railway Engineering Drawing: Substructure Plan, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023017 - Spokane, Portland and Seattle Railway Engineering Drawing: Soil Borings, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- ItemBB023018 - Spokane, Portland and Seattle Railway Engineering Drawing: Typical Pier Detail, Bridge E43.4 - Willamette River, South of Tualatin, Oregon, undated
- 2946 more...