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
- 7659 more...
- ItemBB034418 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Angle, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034419 - Northern Pacific Engineering Drawing: Shop Plan - Column and D - J, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034420 - Northern Pacific Engineering Drawing: Shop Plan - Machinery House, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034421 - Northern Pacific Engineering Drawing: Shop Plan - Machinery House, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034422 - Northern Pacific Engineering Drawing: Shop Plan - Machinery House, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034423 - Northern Pacific Engineering Drawing: Shop Plan - Stair, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034424 - Northern Pacific Engineering Drawing: Shop Plan - Field Bolt, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034425 - Northern Pacific Engineering Drawing: Shop Plan - Field Bolt, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034426 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- 60 more...