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
- 5822 more...
- ItemBB021552 - Northern Pacific Engineering Drawing: Bar List, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021553 - Northern Pacific Engineering Drawing: Bar List, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021554 - Northern Pacific Engineering Drawing: Drainage/Grading, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021555 - Northern Pacific Engineering Drawing: Profile, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021556 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolt, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021557 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021558 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021559 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- ItemBB021560 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolts, Bridge 11.72 - Lake Hills Boulevard, South of Wilburton, Washington, undated
- 1897 more...