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
- 2888 more...
- ItemBB032718 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutment Extension, Bridge 24.2 - Camas Tramway, Camas, Washington, 1947
- ItemBB032719 - Spokane, Portland and Seattle Railway Engineering Drawing: Retaining Wall, Bridge 24.2 - Camas Tramway, Camas, Washington, undated
- ItemBB032720 - Spokane, Portland and Seattle Railway Engineering Drawing: Retaining Wall, Bridge 24.2 - Camas Tramway, Camas, Washington, undated
- ItemBB032721 - Spokane, Portland and Seattle Railway Engineering Drawing: Handrail Detail, Bridge 24.2 - Camas Tramway, Camas, Washington, undated
- ItemBB032722 - Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Showing Permanent Work, Bridge 24.8 - Washougal River (East End), Camas, Washington, 1912
- ItemBB032723 - Spokane, Portland and Seattle Railway Engineering Drawing: Sketch Showing Permanent Work, Bridge 24.8 - Washougal River (West End), Camas, Washington, 1912
- ItemBB032724 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Change, Bridge 24.8 - Washougal River (West End), Camas, Washington, 1911
- ItemBB032725 - Spokane, Portland and Seattle Railway Engineering Drawing: Steel Sheet Piling, Bridge 24.8 - Washougal River (West End), Camas, Washington, undated
- ItemBB032726 - Spokane, Portland and Seattle Railway Engineering Drawing: East/West Abutments, Bridge 24.8 - Washougal River (West End), Camas, Washington, undated
- 1021 more...