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
- 1709 more...
- ItemBB028292 - Spokane, Portland and Seattle Railway Engineering Drawing: Center Tower and Portals, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028293 - Spokane, Portland and Seattle Railway Engineering Drawing: General Details and Laterals, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028294 - Spokane, Portland and Seattle Railway Engineering Drawing: Floor Beams and Stringers, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028295 - Spokane, Portland and Seattle Railway Engineering Drawing: Turntable Bearing and Beams, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028296 - Spokane, Portland and Seattle Railway Engineering Drawing: Bottom Stringer and Beams, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028297 - Spokane, Portland and Seattle Railway Engineering Drawing: Turntable and Radial Beams, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028298 - Spokane, Portland and Seattle Railway Engineering Drawing: Portal and Top Strut Detail, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028299 - Spokane, Portland and Seattle Railway Engineering Drawing: Portal and Frames, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- ItemBB028300 - Spokane, Portland and Seattle Railway Engineering Drawing: Details End Bearings, Bridge 5.1 - Willamette River, North of Willbridge, Oregon, undated
- 2200 more...