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
- 2369 more...
- ItemBB016820 - Northern Pacific Engineering Drawing: Condition of Truss Span, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB016821 - Northern Pacific Engineering Drawing: Repair Dam From Barge, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB016822 - Northern Pacific Engineering Drawing: Rail Joint Assembly, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB016823 - Northern Pacific Engineering Drawing: Lubrication Chart, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB016824 - Northern Pacific Engineering Drawing: Elevation, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB016825 - Northern Pacific Engineering Drawing: Map Showing Crossing, Bridge 72.2 - Hoquiam River - Location Plan, West of Aberdeen, Washington, 1907
- ItemBB016826 - Northern Pacific Engineering Drawing: Pivot Pier 2, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB016827 - Northern Pacific Engineering Drawing: West Pier 3, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB016828 - Northern Pacific Engineering Drawing: Elevation New Permanent Bent, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- 5350 more...