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
- 5461 more...
- ItemBB020557 - Northern Pacific Engineering Drawing: Shop Plan - Masonry/Anchor, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020558 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020559 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020560 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020561 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020562 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020563 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020564 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020565 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- 2258 more...