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
- 955 more...
- ItemBB023001 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Post/Strut, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023002 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Portal, etc., Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023003 - Spokane, Portland and Seattle Railway Engineering Drawing: Profile, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023004 - Spokane, Portland and Seattle Railway Engineering Drawing: Clamp Bars and Gib Plate, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023005 - Spokane, Portland and Seattle Railway Engineering Drawing: Plates for Reinforcement, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023006 - Spokane, Portland and Seattle Railway Engineering Drawing: Reinforce, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023007 - Spokane, Portland and Seattle Railway Engineering Drawing: Bearing Shoes, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023008 - Spokane, Portland and Seattle Railway Engineering Drawing: Sidewalk on Truss, Bridge E35.3 - Tualatin River, South of Tigard, Oregon, undated
- ItemBB023010 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge E40.3 - Underpass, Oregon, 1952
- 2954 more...