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
- 1557 more...
- ItemBB025335 - Spokane, Portland and Seattle Railway Engineering Drawing: Element Wiring Diagram/Power Section, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025336 - Spokane, Portland and Seattle Railway Engineering Drawing: Element Wiring Diagram/Span Center, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025337 - Spokane, Portland and Seattle Railway Engineering Drawing: Element Wiring Diagram/Miscellaneous Center, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025338 - Spokane, Portland and Seattle Railway Engineering Drawing: Electric Detail /Device, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025339 - Spokane, Portland and Seattle Railway Engineering Drawing: Electrical Operating Procedure, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025340 - Spokane, Portland and Seattle Railway Engineering Drawing: Miscellaneous Electrical Details, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025341 - Spokane, Portland and Seattle Railway Engineering Drawing: General Lighting Details, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025342 - Spokane, Portland and Seattle Railway Engineering Drawing: Element Wiring Diagram Miscellaneous Circuit, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025343 - Spokane, Portland and Seattle Railway Engineering Drawing: Electrical Details, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- 2352 more...