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
- 3279 more...
- ItemBB026754 - Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026755 - Great Northern Engineering Drawing: Shop Plan - Cross Girder, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026756 - Great Northern Engineering Drawing: Shop Plan - Pin and Wheel, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026757 - Great Northern Engineering Drawing: Shop Plan - Machinery Support, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026758 - Great Northern Engineering Drawing: Shop Plan - 200 Foot Bearing, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026759 - Great Northern Engineering Drawing: Shop Plan - End Machinery, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026760 - Great Northern Engineering Drawing: Shop Plan - Center Machinery, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026761 - Great Northern Engineering Drawing: Shop Plan - Center Castings, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026762 - Great Northern Engineering Drawing: Shop Plan - Rack, Track, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 713 more...