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
- 3459 more...
- ItemBB027018 - Great Northern Engineering Drawing: General Plan, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027019 - Great Northern Engineering Drawing: Details of Piers, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027020 - Great Northern Engineering Drawing: Details of Piers, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- ItemBB027021 - Great Northern Engineering Drawing: Details Reinforcement Bars, Bridge 17 - Stillaguamish River, North of Silvana, Washington, 1921
- ItemBB027022 - Great Northern Engineering Drawing: Renewal Span 1 - Reinforcement 4, Bridge 17 - Stillaguamish River, North of Silvana, Washington, undated
- 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
- 533 more...