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
- 7345 more...
- ItemBB031014 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 114.9 - I - 5 Access, South of Kalama, Washington, undated
- ItemBB031015 - Northern Pacific Engineering Drawing: Shop Plan - Diaphragms, Bridge 114.9 - I - 5 Access, South of Kalama, Washington, undated
- ItemBB031016 - Northern Pacific Engineering Drawing: Shop Plan - Joint Plates, Bridge 114.9 - I - 5 Access, South of Kalama, Washington, undated
- ItemBB031017 - Northern Pacific Engineering Drawing: Shop Plan - Railing, Bridge 114.9 - I - 5 Access, South of Kalama, Washington, undated
- ItemBB031196 - Northern Pacific Engineering Drawing: Shop Plan - American Structural Metals Transverse, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB031197 - Northern Pacific Engineering Drawing: Shop Plan - American Structural Metals Transverse, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB031198 - Northern Pacific Engineering Drawing: Shop Plan - Operating Rope, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB031199 - Northern Pacific Engineering Drawing: Shop Plan - Suspending Rope, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- ItemBB031200 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- 374 more...