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
- 302 more...
- ItemBB022318 - Spokane, Portland and Seattle Railway Engineering Drawing: Towers for Telegraph, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB022319 - Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB022320 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail of Lamp Standard, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB022321 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan and Profile, Bridge T4.9 - Underpass, Moody, Oregon, 1957
- ItemBB022322 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail of Abutment/Pier, Bridge T29.5, Sinamox, Oregon, 1947
- ItemBB022323 - Spokane, Portland and Seattle Railway Engineering Drawing: Cast Pedestal, Bridge T29.5, Sinamox, Oregon, undated
- ItemBB022325 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T29.5, Sinamox, Oregon, 1948
- ItemBB022326 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plate Girder (DPG), Bridge T29.5, Sinamox, Oregon, undated
- ItemBB022327 - Spokane, Portland and Seattle Railway Engineering Drawing: Channel Excavation, Bridge T31.8, South of Sinamox, Oregon, undated
- 3607 more...