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
- 3262 more...
- ItemBB026737 - Great Northern Engineering Drawing: General Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1910
- ItemBB026738 - Great Northern Engineering Drawing: Masonry Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026739 - Great Northern Engineering Drawing: Masonry Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026740 - Great Northern Engineering Drawing: Masonry Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026741 - Great Northern Engineering Drawing: Detail Plan Granite Coping, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 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
- 730 more...