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
- 135 more...
- ItemBB030738 - Northern Pacific Engineering Drawing: Shop Plan - Precast Concrete, Culvert (Old Number 99), Near Kelso, Washington, undated
- ItemBB031049 - Northern Pacific Engineering Drawing: Standard Plan Foundation, Track Scale, Prineville, Oregon, undated
- ItemBB031050 - Northern Pacific Engineering Drawing: Specification Plan Foundation, Track Scale, Prineville, Oregon, undated
- ItemBB031051 - Northern Pacific Engineering Drawing: Detail - Steel Tie and Fasteners, Track Scale, Prineville, Oregon, undated
- ItemBB031052 - Northern Pacific Engineering Drawing: Proposed Siphon Rocky Ford, Syphon, Grandview, Washington, undated
- 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
- 184 more...