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
- 322 more...
- ItemBB014554 - Northern Pacific Engineering Drawing: Shim Plan, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014556 - Northern Pacific Engineering Drawing: Ties Switch Machinery, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB014560 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB014561 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB014564 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 69, South of Ritzville, Washington, undated
- ItemBB014565 - Northern Pacific Engineering Drawing: Details of Masonry, Bridge 69, South of Ritzville, Washington, undated
- ItemBB014566 - Northern Pacific Engineering Drawing: Structural Steel Details, Bridge 69, South of Ritzville, Washington, undated
- ItemBB014567 - Northern Pacific Engineering Drawing: Plates and Angle Details, Bridge 69, South of Ritzville, Washington, undated
- ItemBB014568 - Northern Pacific Engineering Drawing: Reinforce Center Plan, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 7397 more...