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
- 3386 more...
- ItemBB026862 - Great Northern Engineering Drawing: Shop Plan - 40 Foot Deck Plate Girder (DPG), Bridge 455, East of Snohomish, Washington, undated
- ItemBB026863 - Great Northern Engineering Drawing: Shop Plan - Girder, Laterals, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026864 - Great Northern Engineering Drawing: General Plan, Bridge 455, East of Snohomish, Washington, 1929
- ItemBB026865 - Great Northern Engineering Drawing: Substructure, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026866 - Great Northern Engineering Drawing: Remodeling - Pier, Bridge 455, East of Snohomish, Washington, 1929
- ItemBB026867 - Great Northern Engineering Drawing: Shop Plan - 41 Foot Deck Plate Girder (DPG), Bridge 455, East of Snohomish, Washington, undated
- ItemBB026868 - Great Northern Engineering Drawing: General Plan West Approach, Bridge 455, East of Snohomish, Washington, 1938
- ItemBB026869 - Great Northern Engineering Drawing: Substructure West Approach, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026870 - Great Northern Engineering Drawing: Substructure West Approach, Bridge 455, East of Snohomish, Washington, undated
- 606 more...