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
- 3736 more...
- ItemBB027299 - Great Northern Engineering Drawing: Shop Plan - Bearings, etc., Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027300 - Great Northern Engineering Drawing: Shop Plan - Detail Floor Beam, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027301 - Great Northern Engineering Drawing: Shop Plan - Stringer Cross Frame, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027302 - Great Northern Engineering Drawing: Shop Plan - Stringers - Laterals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027303 - Great Northern Engineering Drawing: Shop Plan - Stringers - Laterals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027304 - Great Northern Engineering Drawing: Shop Plan - Bottom Laterals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027305 - Great Northern Engineering Drawing: Shop Plan - Bottom Laterals, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027306 - Great Northern Engineering Drawing: Shop Plan - Portal Bracket, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB027307 - Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- 256 more...