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
- 7482 more...
- ItemBB034239 - Northern Pacific Engineering Drawing: Shop Plan - Erection Drawing, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034240 - Northern Pacific Engineering Drawing: Shop Plan - Erection Drawing, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034241 - Northern Pacific Engineering Drawing: Shop Plan - Erection Drawing, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034242 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plans, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034243 - Northern Pacific Engineering Drawing: Shop Plan - Erection Drawing, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034244 - Northern Pacific Engineering Drawing: Shop Plan - Erection Drawing, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034245 - Northern Pacific Engineering Drawing: Shop Plan - Span B and C, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034246 - Northern Pacific Engineering Drawing: Shop Plan - Span A, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB034247 - Northern Pacific Engineering Drawing: Shop Plan - Tower Column - Lower, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- 237 more...