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
- 2186 more...
- ItemBB024719 - Great Northern Engineering Drawing: Add Flume Protection, Bridge 5.3, South of Henley, Oregon, undated
- ItemBB024720 - Great Northern Engineering Drawing: Add Flume Protection, Bridge 5.3, South of Henley, Oregon, undated
- ItemBB024721 - Great Northern Engineering Drawing: General Plan, Bridge 5.3, South of Henley, Oregon, 1939
- ItemBB024722 - Great Northern Engineering Drawing: Deck Plan, Bridge 5.3, South of Henley, Oregon, 1963
- ItemBB024723 - Great Northern Engineering Drawing: Shop Plan - 50 Foot Beam, Bridge 5.3, South of Henley, Oregon, undated
- ItemBB024724 - Great Northern Engineering Drawing: General Plan, Bridge 5.6, South of Henley, Oregon, 1931
- ItemBB024725 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Deck Plate Girder (DPG), Bridge 5.6, South of Henley, Oregon, undated
- ItemBB024726 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Deck Plate Girder (DPG), Bridge 5.6, South of Henley, Oregon, undated
- ItemBB024727 - Great Northern Engineering Drawing: Shop Plan - 60 Foot Deck Plate Girder (DPG), Bridge 5.6, South of Henley, Oregon, undated
- 1806 more...