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
- 321 more...
- ItemBB022340 - Spokane, Portland and Seattle Railway Engineering Drawing: Progress Profile, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022341 - Spokane, Portland and Seattle Railway Engineering Drawing: North Abutment, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022342 - Spokane, Portland and Seattle Railway Engineering Drawing: Piers I and II, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022343 - Spokane, Portland and Seattle Railway Engineering Drawing: Pier III, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022344 - Spokane, Portland and Seattle Railway Engineering Drawing: Pier IV, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022345 - Spokane, Portland and Seattle Railway Engineering Drawing: South Abutment, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022349 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022350 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- ItemBB022351 - Spokane, Portland and Seattle Railway Engineering Drawing: Barrel Platform, Bridge T43.7 - Deschutes River, South of Oakbrook, Oregon, undated
- 3588 more...