Railroad Archives Online
- FondD0027 - Timothy Miller Collection
- Sorozat003 - Great Northern Railway Company (U.S.)
- Alsorozat009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
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- IratdarabBB027176 - Great Northern Engineering Drawing: Shop Plan - Turned Bolts, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027177 - Great Northern Engineering Drawing: Shop Plan - Casting - Shafting, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027178 - Great Northern Engineering Drawing: Shop Plan - Capstan - Bars, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027179 - Great Northern Engineering Drawing: Air Equipment, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027180 - Great Northern Engineering Drawing: Map and General Plan, Bridge 4, Ballard, Washington, 1912
- IratdarabBB027181 - Great Northern Engineering Drawing: Map and General Plan, Bridge 4, Ballard, Washington, 1912
- IratdarabBB027182 - Great Northern Engineering Drawing: Machinery - Gear Shift, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027183 - Great Northern Engineering Drawing: Repairs 100 Foot Through Plate Girder Span, Bridge 10 - Snohomish River, North of Delta, Washington, undated
- IratdarabBB027184 - Great Northern Engineering Drawing: Deck Plan, Bridge 10 - Snohomish River, North of Delta, Washington, 1932
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