Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 7716 more...
- ItemBB034475 - Northern Pacific Engineering Drawing: Shop Plan - Wale Posts, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034476 - Northern Pacific Engineering Drawing: Shop Plan - Struts, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034477 - Northern Pacific Engineering Drawing: Shop Plan - American Structural Metals Transverse, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034701 - Northern Pacific Engineering Drawing: Abutments, Bridge 86 - Underpass, South of Vader, Washington, undated
- ItemBB034702 - Northern Pacific Engineering Drawing: Pier and Details, Bridge 86 - Underpass, South of Vader, Washington, undated
- ItemBB034704 - Northern Pacific Engineering Drawing: Shop Plan - Shop Assembly, Bridge 86 - Underpass, South of Vader, Washington, undated
- ItemBB034705 - Northern Pacific Engineering Drawing: Shop Plan - Girder and Brace, Bridge 86 - Underpass, South of Vader, Washington, undated
- ItemBB034706 - Northern Pacific Engineering Drawing: Shop Plan - Diaphragm, Miscellaneous, Bridge 86 - Underpass, South of Vader, Washington, undated
- ItemBB038017 - Northern Pacific Engineering Drawing: General Plan, Bridge 552, North of Swift, Montana, 1923
- 3 more...