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
- 7300 more...
- ItemBB030730 - Northern Pacific Engineering Drawing: Standard Plan - Deck and Walk Detail, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- ItemBB030740 - Northern Pacific Engineering Drawing: Bent and Abutment Details, Bridge 93.2 - West Stock Road, South of Castle Rock, Washington, undated
- ItemBB030741 - Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 93.2 - West Stock Road, South of Castle Rock, Washington, undated
- ItemBB030742 - Northern Pacific Engineering Drawing: Walk Details and Bill of Material, Bridge 93.2 - West Stock Road, South of Castle Rock, Washington, undated
- ItemBB030743 - Northern Pacific Engineering Drawing: 24 Foot Prestressed Concrete, Bridge 93.2 - West Stock Road, South of Castle Rock, Washington, undated
- ItemBB030744 - Northern Pacific Engineering Drawing: 26 Foot Prestressed Concrete, Bridge 93.2 - West Stock Road, South of Castle Rock, Washington, undated
- ItemBB030973 - Northern Pacific Engineering Drawing: Piers 1 and 2, Bridge 114.8 - I - 5 Dike Road, South of Kalama, Washington, undated
- ItemBB030974 - Northern Pacific Engineering Drawing: Northeast and Southeast Retaining Walls, Bridge 114.8 - I - 5 Dike Road, South of Kalama, Washington, undated
- ItemBB030975 - Northern Pacific Engineering Drawing: Northwest Retaining Wall, Bridge 114.8 - I - 5 Dike Road, South of Kalama, Washington, undated
- 419 more...