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 3007 - Track
- 22 more...
- ItemBB030138 - Spokane, Portland and Seattle Railway Engineering Drawing: Concrete Box Culvert, Culverts, Oregon, undated
- ItemBB031528 - Spokane, Portland and Seattle Railway Engineering Drawing: Weigh Bridge, Track Scale, undated
- ItemBB031529 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plan, Track Scale, undated
- ItemBB031530 - Spokane, Portland and Seattle Railway Engineering Drawing: Steel Details, Track Scale, undated
- ItemBB031531 - Spokane, Portland and Seattle Railway Engineering Drawing: Track Scale House, Track Scale, undated
- ItemBB031532 - Spokane, Portland and Seattle Railway Engineering Drawing: Pit Plan, Track Scale, undated
- ItemBB031533 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beams, Laterals, Track Scale, undated
- ItemBB031534 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Beams, Laterals, Track Scale, undated
- ItemBB031535 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Foundation Details, Track Scale, undated
- 61 more...