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 3007 - Track
- 57 more...
- ItemBB033265 - Spokane, Portland, and Seattle Railway Engineering Drawing: 8 Foot X 8 Foot Culvert, Culvert, 1954
- ItemBB033266 - Spokane, Portland, and Seattle Railway Engineering Drawing: 6 Foot X 6 Foot Culvert, Culvert, 1954
- ItemBB033267 - Spokane, Portland, and Seattle Railway Engineering Drawing: 6 Foot X 6 Foot Culvert, Culvert, 1954
- ItemBB033268 - Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Drain Detail, Culvert, 1954
- ItemBB033269 - Spokane, Portland, and Seattle Railway Engineering Drawing: Miscellaneous Drain Detail, Culvert, 1954
- ItemBB033272 - Spokane, Portland, and Seattle Railway Engineering Drawing: Concrete Culvert, Culvert, undated
- ItemBB033273 - Spokane, Portland, and Seattle Railway Engineering Drawing: Rail Top Box Culvert, Culvert, undated
- ItemBB033274 - Spokane, Portland, and Seattle Railway Engineering Drawing: Reinforced Concrete Arch, Culvert, 1907
- ItemBB033275 - Spokane, Portland, and Seattle Railway Engineering Drawing: Concrete Lining, Culvert, undated
- 26 more...