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
- 2503 more...
- 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
- ItemBB031514 - Spokane, Portland and Seattle Railway Engineering Drawing: Bill of Material, Bridge, Oregon, undated
- ItemBB031515 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - 70 Foot Deck Plate Girder (DPG), Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB031516 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - 70 Foot Deck Plate Girder (DPG), Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB031517 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - 70 Foot Deck Plate Girder (DPG), Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB031518 - Spokane, Portland and Seattle Railway Engineering Drawing: Standard Box Culvert, Bridge T151.2 - Franklin Avenue, Bend, Oregon, undated
- 1406 more...