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
- 3311 more...
- ItemBB026786 - Great Northern Engineering Drawing: Shop Plan - Bill of Material Bolts, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026787 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Through Plate Girder, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026788 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Through Plate Girder, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026789 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Through Plate Girder, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026790 - Great Northern Engineering Drawing: Shop Plan - 32 Foot Deck Plate Girder (DPG), Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026791 - Great Northern Engineering Drawing: Shop Plan - 32 Foot Deck Plate Girder (DPG), Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026792 - Great Northern Engineering Drawing: Slide Easer Bar Joint, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026793 - Great Northern Engineering Drawing: General Plan of Lining Device, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026794 - Great Northern Engineering Drawing: General Detail Lining Device, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 681 more...