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
- 5892 more...
- ItemBB025550 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025551 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025552 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025553 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025554 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025555 - Northern Pacific Engineering Drawing: Shop Plan - Height Indicator, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025556 - Northern Pacific Engineering Drawing: Shop Plan - Stands/Buffer, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025557 - Northern Pacific Engineering Drawing: Shop Plan - Span Link, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025558 - Northern Pacific Engineering Drawing: Shop Plan - Height Indicator, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1827 more...