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
- 518 more...
- ItemBB022546 - Spokane, Portland and Seattle Railway Engineering Drawing: Track Details, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022547 - Spokane, Portland and Seattle Railway Engineering Drawing: Soundings, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022549 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Framing Plan, Bridge T82.4 - Underpass, South of Kaskela, Oregon, undated
- ItemBB022550 - Spokane, Portland and Seattle Railway Engineering Drawing: Steel Details, Bridge T82.4 - Underpass, South of Kaskela, Oregon, 1949
- ItemBB022551 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Masonry Plan, Bridge T88.6 - Trout Creek, South of South Junction, Oregon, undated
- ItemBB022552 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Erection Diagram, Bridge T88.6 - Trout Creek, South of South Junction, Oregon, undated
- ItemBB022553 - Spokane, Portland and Seattle Railway Engineering Drawing: Piers and Abutment, Bridge T88.6 - Trout Creek, South of South Junction, Oregon, undated
- ItemBB022554 - Spokane, Portland and Seattle Railway Engineering Drawing: General Diagram, Bridge T88.6 - Trout Creek, South of South Junction, Oregon, undated
- ItemBB022555 - Spokane, Portland and Seattle Railway Engineering Drawing: General Methods, Bridge T88.6 - Trout Creek, South of South Junction, Oregon, undated
- 3391 more...