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
- 3329 more...
- ItemBB026804 - Great Northern Engineering Drawing: Deck Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1953
- ItemBB026805 - Great Northern Engineering Drawing: Deck Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1954
- ItemBB026806 - Great Northern Engineering Drawing: Deck Plan, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1956
- ItemBB026807 - Great Northern Engineering Drawing: Trainman's Walk, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026808 - Great Northern Engineering Drawing: Steel Repairs, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1964
- ItemBB026810 - Great Northern Engineering Drawing: Cross Section at Bridge 36, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026811 - Great Northern Engineering Drawing: Vicinity Map, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026812 - Great Northern Engineering Drawing: Protect Cribbing Pier 4, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026813 - Great Northern Engineering Drawing: Work at Pier 1, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 663 more...