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
- 7270 more...
- ItemBB029350 - Northern Pacific Engineering Drawing: Shop Plan - Posts, Bridge 218 - Clark Fork River, West of Quinns, Montana, undated
- ItemBB029351 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 218 - Clark Fork River, West of Quinns, Montana, undated
- ItemBB029352 - Northern Pacific Engineering Drawing: Shop Plan - Portals, Bridge 218 - Clark Fork River, West of Quinns, Montana, undated
- ItemBB029353 - Northern Pacific Engineering Drawing: Shop Plan - Top Lateral, Bridge 218 - Clark Fork River, West of Quinns, Montana, undated
- ItemBB029630 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 1A - Cedar River - Deck Plan, South of Renton, Washington, 1958
- ItemBB029980 - Northern Pacific Engineering Drawing: Bent and Abutment Details, Bridge 36 - Pattison Lake, South of Kyro, Washington, undated
- ItemBB029981 - Northern Pacific Engineering Drawing: Precast Concrete Details, Bridge 36 - Pattison Lake, South of Kyro, Washington, undated
- ItemBB029982 - Northern Pacific Engineering Drawing: Walk Details and Bill of Material, Bridge 36 - Pattison Lake, South of Kyro, Washington, undated
- ItemBB029983 - Northern Pacific Engineering Drawing: 30 Foot Prestressed Concrete, Bridge 36 - Pattison Lake, South of Kyro, Washington, undated
- 449 more...