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
- 1536 more...
- ItemBB025314 - Spokane, Portland and Seattle Railway Engineering Drawing: Machinery Floor Beam, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025315 - Spokane, Portland and Seattle Railway Engineering Drawing: Counterweight Jacking Beam/Walkway, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025316 - Spokane, Portland and Seattle Railway Engineering Drawing: Counterweight, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025317 - Spokane, Portland and Seattle Railway Engineering Drawing: Counterweight, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025318 - Spokane, Portland and Seattle Railway Engineering Drawing: Rope Casting/Balance Chain, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025319 - Spokane, Portland and Seattle Railway Engineering Drawing: Tower Hood, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025320 - Spokane, Portland and Seattle Railway Engineering Drawing: Tower Hood Detail, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025321 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan End of Lift Span, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- ItemBB025322 - Spokane, Portland and Seattle Railway Engineering Drawing: Rail Joint Casting, Bridge T0.4 - Columbia River, South of Wishram, Washington, undated
- 2373 more...