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
- 5470 more...
- ItemBB020566 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020567 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020568 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020569 - Northern Pacific Engineering Drawing: Shop Plan - Walk Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020570 - Northern Pacific Engineering Drawing: Shop Plan - Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020571 - Northern Pacific Engineering Drawing: Shop Plan - Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020572 - Northern Pacific Engineering Drawing: Shop Plan - Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020573 - Northern Pacific Engineering Drawing: Shop Plan - Brackets, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- ItemBB020574 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beams, Bridge 9.46 - I-90, South of Wilburton, Washington, undated
- 2249 more...