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
- 866 more...
- ItemBB022899 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge T148.5 - Swally Ditch, South of Deschutes, Oregon, undated
- ItemBB022900 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - 17 Foot Span, Bridge T148.5 - Swally Ditch, South of Deschutes, Oregon, undated
- ItemBB022901 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Bridge, Bridge T149.6 - Underpass, Bend, Oregon, undated
- ItemBB022903 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Girder Span, Bridge T149.6 - Underpass, Bend, Oregon, undated
- ItemBB022904 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge T151.0 - Greenwood Avenue, Bend, Oregon, undated
- ItemBB022905 - Spokane, Portland and Seattle Railway Engineering Drawing: Undergrade Crossing, Bridge T151.0 - Greenwood Ave, Bend, Oregon, undated
- ItemBB022906 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Permanent Bridge, Bridge T151.0 - Greenwood Ave, Bend, Oregon, undated
- ItemBB022907 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Permanent Bridge, Bridge T151.0 - Greenwood Ave, Bend, Oregon, undated
- ItemBB022908 - Spokane, Portland and Seattle Railway Engineering Drawing: Highway Undergrade Crossing, Bridge T151.0 - Greenwood Ave, Bend, Oregon, undated
- 3043 more...