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
- 3249 more...
- ItemBB033091 - Spokane, Portland and Seattle Railway Engineering Drawing: Main Shaft Cast, Bridge A62.7 - Clatskanie River, West of Clatskanie, Oregon, undated
- ItemBB033092 - Spokane, Portland and Seattle Railway Engineering Drawing: Bearing for Main Shaft, Bridge A62.7 - Clatskanie River, West of Clatskanie, Oregon, undated
- ItemBB033093 - Spokane, Portland and Seattle Railway Engineering Drawing: General Elevation, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, 1918
- ItemBB033094 - Spokane, Portland and Seattle Railway Engineering Drawing: Foundations, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033095 - Spokane, Portland and Seattle Railway Engineering Drawing: Substructure Repairs, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033096 - Spokane, Portland and Seattle Railway Engineering Drawing: Draw Protection, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033097 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, 1959
- ItemBB033098 - Spokane, Portland and Seattle Railway Engineering Drawing: Rail Locks, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- ItemBB033099 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail of Rail Lock, Bridge A84.8 - Blind Slough, West of Clifton, Oregon, undated
- 660 more...