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
- 856 more...
- ItemBB022887 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022888 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022889 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022890 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Document, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022891 - Spokane, Portland and Seattle Railway Engineering Drawing: Map Showing Topography, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022892 - Spokane, Portland and Seattle Railway Engineering Drawing: Map of Ravine Section, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022893 - Spokane, Portland and Seattle Railway Engineering Drawing: 23 Foot Span, Bridge T145.6, South of Deschutes, Oregon, undated
- ItemBB022895 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T145.6, South of Deschutes, Oregon, 1949
- ItemBB022896 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - General Plan, Bridge T145.6, South of Deschutes, Oregon, undated
- 3053 more...