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
- 2886 more...
- ItemBB017416 - Northern Pacific Engineering Drawing: Reinforcement Concrete Trestle, Bridge 104, West of Cunningham, Washington, 1924
- ItemBB017417 - Northern Pacific Engineering Drawing: Reinforcement Concrete Trestle, Bridge 104.3, West of Cunningham, Washington, 1924
- ItemBB017418 - Northern Pacific Engineering Drawing: Reinforcement Concrete Trestle, Bridge 106.1, West of Cunningham, Washington, 1924
- ItemBB017420 - Northern Pacific Engineering Drawing: Abutment Details, Bridge 114, West of Connell, Washington, undated
- ItemBB017421 - Northern Pacific Engineering Drawing: Walk Detail and Bill of Material, Bridge 114, West of Connell, Washington, undated
- ItemBB017422 - Northern Pacific Engineering Drawing: Reinforcement Concrete Trestle, Bridge 114, West of Connell, Washington, undated
- ItemBB017423 - Northern Pacific Engineering Drawing: Reinforcement Concrete Slab Deck, Bridge 114, West of Connell, Washington, undated
- ItemBB017424 - Northern Pacific Engineering Drawing: Reinforcement Concrete Trestle, Bridge 117, West of Connell, Washington, 1928
- ItemBB017425 - Northern Pacific Engineering Drawing: General Plan, Bridge 121, West of Mesa, Washington, 1928
- 4833 more...