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
- 3402 more...
- ItemBB026878 - Great Northern Engineering Drawing: Refuge Platform, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026879 - Great Northern Engineering Drawing: Refuge Platform, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026880 - Great Northern Engineering Drawing: General Plan, Bridge 455, East of Snohomish, Washington, 1952
- ItemBB026881 - Great Northern Engineering Drawing: Deck and Masonry Plan, Bridge 455, East of Snohomish, Washington, 1952
- ItemBB026882 - Great Northern Engineering Drawing: Masonry Plan, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026883 - Great Northern Engineering Drawing: Deck Plan, Bridge 455, East of Snohomish, Washington, 1952
- ItemBB026884 - Great Northern Engineering Drawing: Masonry Plan and Steel Design, Bridge 455, East of Snohomish, Washington, undated
- ItemBB026885 - Great Northern Engineering Drawing: Deck Plan, Bridge 455, East of Snohomish, Washington, 1953
- ItemBB026886 - Great Northern Engineering Drawing: Shop Plan - Beam Spans, Bridge 455, East of Snohomish, Washington, undated
- 590 more...