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
- 5980 more...
- ItemBB025638 - Northern Pacific Engineering Drawing: Shop Plans, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025639 - Northern Pacific Engineering Drawing: Shop Plan - Temporary Girder Span, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025640 - Northern Pacific Engineering Drawing: Shop Plan - Temporary Girder Span, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025641 - Northern Pacific Engineering Drawing: Shop Plan - Temporary Girder Span, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025642 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025643 - Northern Pacific Engineering Drawing: Shop Plan - Tower Column, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025644 - Northern Pacific Engineering Drawing: Shop Plan - Floor System, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025645 - Northern Pacific Engineering Drawing: Shop Plan - Trusses, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025646 - Northern Pacific Engineering Drawing: Shop Plan - Plank Floor, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1739 more...