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
- 7 more...
- ItemStruc006518 - Spokane, Portland, and Seattle Railway Engineering Drawing, Yard Plot Plan at Portland, Oregon, 1973
- ItemStruc009599 - Spokane, Portland, and Seattle Railway Engineering Drawing, Yard at Portland, Oregon, 1962
- ItemBB022952 - Spokane, Portland and Seattle Railway Engineering Drawing: 8 Foot X 8 Foot Box Culvert, Culvert West of United Junction, West of United Junction, Oregon, undated
- ItemBB022953 - Spokane, Portland and Seattle Railway Engineering Drawing: 8 Foot X 8 Foot Box Culvert, Culvert West of United Junction, West of United Junction, Oregon, undated
- ItemBB030127 - Spokane, Portland and Seattle Railway Engineering Drawing: 40 Foot Railroad Crossing Arch, Concrete Arch, Salem, Oregon, undated
- ItemBB030128 - Spokane, Portland and Seattle Railway Engineering Drawing: General Pl - 40 Foot Arch, Concrete Arch, Salem, Oregon, undated
- ItemBB030129 - Spokane, Portland and Seattle Railway Engineering Drawing: Details - Arch Ring, Concrete Arch, Salem, Oregon, undated
- ItemBB030130 - Spokane, Portland and Seattle Railway Engineering Drawing: Details - Wingwalls, Concrete Arch, Salem, Oregon, undated
- ItemBB030131 - Spokane, Portland and Seattle Railway Engineering Drawing: Details - Reinforcement, Concrete Arch, Salem, Oregon, undated
- 76 more...