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
- 3728 more...
- ItemBB027291 - Great Northern Engineering Drawing: Shop Plan - Details Columns, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027292 - Great Northern Engineering Drawing: Shop Plan - Details Columns, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027293 - Great Northern Engineering Drawing: Shop Plan - Details Columns, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027294 - Great Northern Engineering Drawing: Shop Plan - Details Diagonal, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027295 - Great Northern Engineering Drawing: Shop Plan - Details Girder, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027296 - Great Northern Engineering Drawing: Shop Plan - Details Girder, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027297 - Great Northern Engineering Drawing: Shop Plan - Details Girder, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027298 - Great Northern Engineering Drawing: Shop Plan - Erection Plan, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027299 - Great Northern Engineering Drawing: Shop Plan - Bearings, etc., Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 264 more...