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
- 3165 more...
- ItemBB033007 - Spokane, Portland and Seattle Railway Engineering Drawing: Cap Frame Detail, Bridge 29.5 Public Oh, West of Saint Helens, Oregon, undated
- ItemBB033008 - Spokane, Portland and Seattle Railway Engineering Drawing: Bill of Material, Bridge 29.5 Public Oh, West of Saint Helens, Oregon, undated
- ItemBB033009 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, undated
- ItemBB033010 - Spokane, Portland and Seattle Railway Engineering Drawing: Pier Alterations, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, 1958
- ItemBB033011 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, 1957
- ItemBB033012 - Spokane, Portland and Seattle Railway Engineering Drawing: Bed Plates, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, undated
- ItemBB033013 - Spokane, Portland and Seattle Railway Engineering Drawing: Cast Iron Shims, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, undated
- ItemBB033014 - Spokane, Portland and Seattle Railway Engineering Drawing: 25 Foot Beam Girder, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, undated
- ItemBB033015 - Spokane, Portland and Seattle Railway Engineering Drawing: 30 Foot Beam Girder, Bridge A34.4 - Merrill Creek, West of Reichhold, Oregon, undated
- 744 more...