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
- 3746 more...
- ItemBB027309 - Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027310 - Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027311 - Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027312 - Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027313 - Great Northern Engineering Drawing: Shop Plan - End Posts, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027314 - Great Northern Engineering Drawing: Shop Plan - End Posts, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027315 - Great Northern Engineering Drawing: Shop Plan - Detail Posts, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027316 - Great Northern Engineering Drawing: Shop Plan - Detail Posts, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027317 - Great Northern Engineering Drawing: Shop Plan - Detail Diagonals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 246 more...