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
- 5930 more...
- ItemBB025588 - Northern Pacific Engineering Drawing: Hydrographs, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025589 - Northern Pacific Engineering Drawing: Movement/Raising Sequence, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025590 - Northern Pacific Engineering Drawing: Jacking Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025591 - Northern Pacific Engineering Drawing: Jacking Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025592 - Northern Pacific Engineering Drawing: Skid Frame/Shoe, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 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
- 1789 more...