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
- 792 more...
- ItemBB022823 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonal, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022824 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - General Plan, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022825 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - General Plan, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022826 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022827 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022828 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022829 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022830 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Posts, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- ItemBB022831 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Cross Girder, Bridge T125.7 - Crooked River, South of Opal City, Oregon, undated
- 3117 more...