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
- 2602 more...
- ItemBB025951 - Great Northern Engineering Drawing: Machinery Repairs, Bridge 4 - Salmon Bay, Ballard, Washington, 1921
- ItemBB025952 - Great Northern Engineering Drawing: End Lock Circuit Control, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB025953 - Great Northern Engineering Drawing: Bearing and Diaphragm, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB025954 - Great Northern Engineering Drawing: Temporary Yoke Fastening, Bridge 4 - Salmon Bay, Ballard, Washington, undated
- ItemBB025955 - Great Northern Engineering Drawing: Machinery Repairs, Bridge 4 - Salmon Bay, Ballard, Washington, 1926
- ItemBB025956 - Great Northern Engineering Drawing: Contour Map and Profile, Bridge 455, East of Snohomish, Washington, undated
- ItemBB025957 - Great Northern Engineering Drawing: Plan and Profiles, Bridge 455, East of Snohomish, Washington, undated
- ItemBB025958 - Great Northern Engineering Drawing: Drawing Index, Bridge 455, East of Snohomish, Washington, undated
- ItemBB025959 - Great Northern Engineering Drawing: Vicinity of Map, Bridge 455, East of Snohomish, Washington, undated
- 1390 more...