Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 3793 more...
- ItemBB027356 - Great Northern Engineering Drawing: Shop Plan - Center Girder Calculations, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027357 - Great Northern Engineering Drawing: Shop Plan - Details Columns, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027358 - Great Northern Engineering Drawing: Shop Plan - Centerline Diagonal, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027359 - Great Northern Engineering Drawing: Shop Plan - Detail Post, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027360 - Great Northern Engineering Drawing: Shop Plan - Details Columns, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027361 - Great Northern Engineering Drawing: Shop Plan - Details Members, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027362 - Great Northern Engineering Drawing: Shop Plan - Detail Floor Beam, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027363 - Great Northern Engineering Drawing: Shop Plan - Details Floor Beam, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027364 - Great Northern Engineering Drawing: Shop Plan - Detail Tower, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 199 more...