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
- 1812 more...
- ItemBB024318 - Great Northern Engineering Drawing: Shop Plan - Girder Beams, Bridge 20 - Undercrossing, North of Clayton, Washington, undated
- ItemBB024319 - Great Northern Engineering Drawing: Shop Plan - Girder Span, Bridge 20 - Undercrossing, North of Clayton, Washington, undated
- ItemBB024320 - Great Northern Engineering Drawing: Shop Plan - Ball Plates, Bridge 20 - Undercrossing, North of Clayton, Washington, undated
- ItemBB024321 - Great Northern Engineering Drawing: General Plan, Bridge 581, West of Toledo, Montana, 1936
- ItemBB024322 - Great Northern Engineering Drawing: General Plan, Bridge 552, West of North Fork, Montana, 1930
- ItemBB024323 - Great Northern Engineering Drawing: General Plan, Bridge 517, West of Survant, Montana, 1930
- ItemBB024324 - Great Northern Engineering Drawing: General Plan and Masonry Plan, Bridge 517, West of Survant, Montana, undated
- ItemBB024325 - Great Northern Engineering Drawing: Shop Plan - 24 Foot Beam, Bridge 517, West of Survant, Montana, undated
- ItemBB024326 - Great Northern Engineering Drawing: Deck Plan, Bridge 517, West of Survant, Montana, 1948
- 2180 more...