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
- 2248 more...
- ItemBB030481 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030482 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030483 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030484 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030485 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030486 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030487 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030488 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Field Rivets, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030489 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Field Rivets, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- 1661 more...