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
- 765 more...
- ItemBB022796 - Spokane, Portland and Seattle Railway Engineering Drawing: Progress Profile, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022797 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022798 - Spokane, Portland and Seattle Railway Engineering Drawing: Skew Back Pedestal, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022799 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan/Stress Sheet, Bridge T125.7 - Crooked River, South of Opal City, Oregon, 1910
- ItemBB022800 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Girder Spans, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022801 - Spokane, Portland and Seattle Railway Engineering Drawing: Erection Device, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022802 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - General Plan, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022803 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Cross Frame, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022804 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Shoes, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- 3144 more...