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
- 5935 more...
- ItemBB025593 - Northern Pacific Engineering Drawing: Temporary Girder Spans, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025594 - Northern Pacific Engineering Drawing: Grillage Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025595 - Northern Pacific Engineering Drawing: Grillage Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025596 - Northern Pacific Engineering Drawing: Timber Protection, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025597 - Northern Pacific Engineering Drawing: Anchor Bolt Layout, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025598 - Northern Pacific Engineering Drawing: East Abutment 1, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025599 - Northern Pacific Engineering Drawing: Pier Tops, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025600 - Northern Pacific Engineering Drawing: Pier Tops, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025601 - Northern Pacific Engineering Drawing: West Abutment 12, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1784 more...