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
- 2498 more...
- ItemBB031478 - Spokane, Portland and Seattle Railway Engineering Drawing: End Stop Switch, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031479 - Spokane, Portland and Seattle Railway Engineering Drawing: Lamp Box, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031480 - Spokane, Portland and Seattle Railway Engineering Drawing: Gear for Stop Switch, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031481 - Spokane, Portland and Seattle Railway Engineering Drawing: End Lift Stop Switch, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031482 - Spokane, Portland and Seattle Railway Engineering Drawing: Wiring Diagram, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031483 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan Machinery House, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031484 - Spokane, Portland and Seattle Railway Engineering Drawing: Switch Board, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031485 - Spokane, Portland and Seattle Railway Engineering Drawing: Details of Brake, Bridge 9.6 - Columbia River, Vancouver, Washington, undated
- ItemBB031513 - Spokane, Portland and Seattle Railway Engineering Drawing: Replace Wood Truss, Bridge, Oregon, undated
- 1411 more...