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
- 3464 more...
- ItemBB027023 - Great Northern Engineering Drawing: Layout Renewal Span 2 and 3, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027024 - Great Northern Engineering Drawing: Replacement Span 4, Bridge 17 - Stillaguamish River, North of Silvana, Washington, 1925
- ItemBB027025 - Great Northern Engineering Drawing: Renewal Piers 2, 3 and 4, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027026 - Great Northern Engineering Drawing: North Approach Repairs, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027027 - Great Northern Engineering Drawing: North Approach Repairs, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027028 - Great Northern Engineering Drawing: General Plan, Bridge 17 - Stillaguamish River, North of Silvana, Washington, 1946
- ItemBB027029 - Great Northern Engineering Drawing: Masonry Plan Piers 1 and 4, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027030 - Great Northern Engineering Drawing: Masonry Plan Piers 2 and 3, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027031 - Great Northern Engineering Drawing: Design 50 Foot Deck Plate Girder (DPG) Span, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- 528 more...