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
- 5238 more...
- ItemBB020255 - Northern Pacific Engineering Drawing: Girder Bearing Details, Bridge 23.1 - Underpass, South of Ketron, Washington, undated
- ItemBB020256 - Northern Pacific Engineering Drawing: Deck Drainage, Bridge 23.1 - Underpass, South of Ketron, Washington, undated
- ItemBB020257 - Northern Pacific Engineering Drawing: Girder Bearing Layout, Bridge 23.1 - Underpass, South of Ketron, Washington, undated
- ItemBB020258 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 23.1 - Underpass, South of Ketron, Washington, undated
- 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
- 2481 more...