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
- 910 more...
- ItemBB022954 - Spokane, Portland and Seattle Railway Engineering Drawing: Standard Plans, Bridge U16.7 - Underpass, West of United Junction, Oregon, 1927
- ItemBB022955 - Spokane, Portland and Seattle Railway Engineering Drawing: Concrete Footings, Bridge U16.7 - Underpass, West of United Junction, Oregon, 1923
- ItemBB022956 - Spokane, Portland and Seattle Railway Engineering Drawing: General Elevation, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022957 - Spokane, Portland and Seattle Railway Engineering Drawing: Pre - Boring/Bents, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022958 - Spokane, Portland and Seattle Railway Engineering Drawing: Pre - Boring/Bents, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022959 - Spokane, Portland and Seattle Railway Engineering Drawing: Pre - Boring/Bents, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022960 - Spokane, Portland and Seattle Railway Engineering Drawing: Pre - Boring/Bents, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022961 - Spokane, Portland and Seattle Railway Engineering Drawing: Pre - Boring/Bents, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- ItemBB022962 - Spokane, Portland and Seattle Railway Engineering Drawing: Firewall - Pile Trestle, Bridge U16.7 - Underpass, West of United Junction, Oregon, undated
- 2999 more...