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 3007 - Track
- 140 more...
- ItemBB031053 - Northern Pacific Engineering Drawing: Railroad Crossing/Out Transition, Railroad Crossing, Yakima, Washington, undated
- ItemBB031576 - Northern Pacific Engineering Drawing: Standard Plan of Track Scale, Track Scale, undated
- ItemBB031577 - Northern Pacific Engineering Drawing: Standard Plan of Track Scale, Track Scale, undated
- ItemBB031578 - Northern Pacific Engineering Drawing: Replace Weighbridge with Steel, Track Scale, undated
- ItemBB031579 - Northern Pacific Engineering Drawing: Replace Weighbridge with Steel, Track Scale, undated
- ItemBB031580 - Northern Pacific Engineering Drawing: Replace Weighbridge W Steel, Track Scale, undated
- ItemBB031581 - Northern Pacific Engineering Drawing: Replace Weighbridge with Steel, Track Scale, undated
- ItemBB031641 - Northern Pacific Engineering Drawing: Pit Details, undated
- ItemBB031642 - Northern Pacific Engineering Drawing: Detail - Structural Steel, undated
- 179 more...