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
- 1178 more...
- ItemBB023237 - Spokane, Portland and Seattle Railway Engineering Drawing: Floor System/Shoe/Lateral, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023238 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail of Truss, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023239 - Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge E89.0 - Santiam River, South of Sidney, Oregon, 1912
- ItemBB023240 - Spokane, Portland and Seattle Railway Engineering Drawing: Falsework Plans, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023241 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Diagram, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023242 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Matchmarking, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023243 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Diagram, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023244 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Floor Beam/Stringer, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- ItemBB023245 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bottom Lateral, Bridge E89.0 - Santiam River, South of Sidney, Oregon, undated
- 2731 more...