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
- 342 more...
- ItemBB014582 - Northern Pacific Engineering Drawing: Concrete Shims, Bridge 43 - Little Blackfoot Creek, West of Bradley, Montana, undated
- ItemBB014584 - Northern Pacific Engineering Drawing: Walk Details, Bridge 43 - Little Blackfoot Creek, West of Bradley, Montana, undated
- ItemBB014585 - Northern Pacific Engineering Drawing: General Plans, Bridge 168 (24), West of Rivulet, Montana, 1901
- ItemBB014586 - Northern Pacific Engineering Drawing: Study Bridge/Track Layout, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014587 - Northern Pacific Engineering Drawing: General Plan Superstructure, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014588 - Northern Pacific Engineering Drawing: Abutment Seat Remodel, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014589 - Northern Pacific Engineering Drawing: Deck Plate Girder (DPG) Span/Bearing Detail, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014590 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014591 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 168 (24), West of Rivulet, Montana, undated
- 7377 more...