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
- 6002 more...
- ItemBB025660 - Northern Pacific Engineering Drawing: Shop Plan - Operating House, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025661 - Northern Pacific Engineering Drawing: Shop Plan - Grating Plan, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025662 - Northern Pacific Engineering Drawing: Shop Plan - Shoe/Girder/Repair, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025663 - Northern Pacific Engineering Drawing: Shop Plan - Shoe/Girder/Repair, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025664 - Northern Pacific Engineering Drawing: Shop Plan - Plate/Bracket/Brace, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025665 - Northern Pacific Engineering Drawing: Shop Plan - Tower Detail, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025666 - Northern Pacific Engineering Drawing: Shop Plan - Tower Detail, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025667 - Northern Pacific Engineering Drawing: Shop Plan - Tower Detail, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025668 - Northern Pacific Engineering Drawing: Shop Plan - Tower Detail, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1717 more...