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
- 3267 more...
- ItemBB026742 - Great Northern Engineering Drawing: Plan - Fender Piers, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026743 - Great Northern Engineering Drawing: Repairs Fender Nose Curb, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026744 - Great Northern Engineering Drawing: Falsework Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026745 - Great Northern Engineering Drawing: Repairs Lower Chord 200 Foot, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026746 - Great Northern Engineering Drawing: Shop Plan - Erection Diagram, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026747 - Great Northern Engineering Drawing: Shop Plan - Truss, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026748 - Great Northern Engineering Drawing: Shop Plan - Truss, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026749 - Great Northern Engineering Drawing: Shop Plan - Portal, Strut, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026750 - Great Northern Engineering Drawing: Shop Plan - Floor Beams, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 725 more...