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
- 3788 more...
- ItemBB027351 - Great Northern Engineering Drawing: Shop Plan - Operating House, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027352 - Great Northern Engineering Drawing: Shop Plan - Erection Diagram, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027353 - Great Northern Engineering Drawing: Shop Plan - Stair and Railing, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027354 - Great Northern Engineering Drawing: Shop Plan - Stair and Railing, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027355 - Great Northern Engineering Drawing: Shop Plan - Section Cross Section, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 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
- 204 more...