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
- 3321 more...
- ItemBB026796 - Great Northern Engineering Drawing: Shaft Detail Lining Device, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026797 - Great Northern Engineering Drawing: Rev - Easer Bar, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1925
- ItemBB026798 - Great Northern Engineering Drawing: Steel Ties - Ends Drawspan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026799 - Great Northern Engineering Drawing: Deck Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1932
- ItemBB026800 - Great Northern Engineering Drawing: Shoes 200 Foot Drawspan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026801 - Great Northern Engineering Drawing: Repairs Piers, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1950
- ItemBB026802 - Great Northern Engineering Drawing: Plan of Fender Pier, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026803 - Great Northern Engineering Drawing: Encasement Pier 2, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1953
- ItemBB026804 - Great Northern Engineering Drawing: Deck Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1953
- 671 more...