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
- 3843 more...
- ItemBB027407 - Great Northern Engineering Drawing: Shop Plan - Details of Stringers, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027408 - Great Northern Engineering Drawing: Shop Plan - Details of Stringers, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027409 - Great Northern Engineering Drawing: Shop Plan - Details of Stringers, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027410 - Great Northern Engineering Drawing: Shop Plan - Details of Stringers, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027411 - Great Northern Engineering Drawing: Shop Plan - Portal Struts and Laterals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027412 - Great Northern Engineering Drawing: Shop Plan - Details Portal, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027413 - Great Northern Engineering Drawing: Shop Plan - Details Portal, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027414 - Great Northern Engineering Drawing: Shop Plan - Details Strut, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027415 - Great Northern Engineering Drawing: Design Telegraph Wire Towers, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 149 more...