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
- 5242 more...
- ItemBB020259 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 23.1 - Underpass, South of Ketron, Washington, undated
- ItemBB020284 - Northern Pacific Engineering Drawing: Track Arrangement, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020285 - Northern Pacific Engineering Drawing: General Plan and Profile, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020286 - Northern Pacific Engineering Drawing: Details West Abutment, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020287 - Northern Pacific Engineering Drawing: Footings Deepened, Bridge 0.1 - Montana Street, Butte, Montana, 1936
- ItemBB020288 - Northern Pacific Engineering Drawing: Reinforcement - Abutment, Bridge 0.1 - Montana Street, Butte, Montana, 1935
- ItemBB020289 - Northern Pacific Engineering Drawing: Details - Pipe Railing, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020290 - Northern Pacific Engineering Drawing: Details of Girder, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020291 - Northern Pacific Engineering Drawing: Detail - Deck Slab, Bridge 0.1 - Montana Street, Butte, Montana, undated
- 2477 more...