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
- 5367 more...
- ItemBB020463 - Northern Pacific Engineering Drawing: Shop Plan - Framing Plan, Bridge 4.75 - Potholes East, West of Mesa, Washington, undated
- ItemBB020464 - Northern Pacific Engineering Drawing: Shop Plan - Framing Plan, Bridge 4.75 - Potholes East, West of Mesa, Washington, undated
- ItemBB020465 - Northern Pacific Engineering Drawing: General Plan, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020466 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020467 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020468 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020469 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020470 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020471 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- 2352 more...