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
- 481 more...
- ItemBB022509 - Spokane, Portland and Seattle Railway Engineering Drawing: Floor Beam/Stringer/Bracing, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022510 - Spokane, Portland and Seattle Railway Engineering Drawing: Through Span Bearings, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022511 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - General Plan, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022512 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Miscellaneous Detail, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022513 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - End Post, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022514 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - End Post, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022515 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022516 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- ItemBB022517 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Top Chord, Bridge T74.6 - Deschutes River, South of Dixon, Oregon, undated
- 3428 more...