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
- 5876 more...
- ItemBB025534 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025535 - Northern Pacific Engineering Drawing: Shop Plan - Shaft, etc., Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025536 - Northern Pacific Engineering Drawing: Shop Plan - Shim, etc., Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025537 - Northern Pacific Engineering Drawing: Shop Plan - Lock Machinery, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025538 - Northern Pacific Engineering Drawing: Shop Plan - Height Indicator, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025539 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025540 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025541 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025542 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1843 more...