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
- 2151 more...
- ItemBB030384 - Spokane, Portland and Seattle Railway Engineering Drawing: Typical Tower Details, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030385 - Spokane, Portland and Seattle Railway Engineering Drawing: Typical Tower Details, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030386 - Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030387 - Spokane, Portland and Seattle Railway Engineering Drawing: Stress Sheet, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030388 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan - Cast Iron Base, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030389 - Spokane, Portland and Seattle Railway Engineering Drawing: Frame End Bent West Side, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030390 - Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Ties Bolts and Washer, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030391 - Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Wood Block, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030392 - Spokane, Portland and Seattle Railway Engineering Drawing: Renew Cracked Concrete, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- 1758 more...