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
- 809 more...
- ItemBB022840 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bottom Lateral, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022841 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bottom Lateral, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022842 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bottom Lateral, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022843 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bottom Lateral, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022844 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Brace, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022845 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Brace, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022846 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Brace, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022847 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Brace, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022848 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Brace, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- 3100 more...