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
- 2286 more...
- ItemBB024830 - Great Northern Engineering Drawing: Shop Plan - Beams, Bridge 4.9, South of Henley, Oregon, undated
- ItemBB024831 - Great Northern Engineering Drawing: Substructure and Deck Plan, Bridge 4.9, South of Henley, Oregon, undated
- ItemBB024832 - Great Northern Engineering Drawing: General Plan, Bridge 4.9, South of Henley, Oregon, 1951
- ItemBB024833 - Great Northern Engineering Drawing: General Plan, Bridge 4.9, South of Henley, Oregon, 1931
- ItemBB024839 - Great Northern Engineering Drawing: General Plan, Canal bridge, South of Stronghold, California, 1931
- ItemBB024841 - Great Northern Engineering Drawing: General Plan, Canal bridge, South of Dalton, California, 1951
- ItemBB024842 - Great Northern Engineering Drawing: General Plan, Canal bridge, South of Dalton, California, undated
- ItemBB024843 - Great Northern Engineering Drawing: Shop Plan - 54 Foot Girder, Canal bridge, South of Dalton, California, undated
- ItemBB024844 - Great Northern Engineering Drawing: General Plan, Bridge 3.2, South of South Klamath, Oregon, 1954
- 1706 more...