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
- 347 more...
- 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
- ItemBB014592 - Northern Pacific Engineering Drawing: Shop Plan - Bearing Assembly, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014593 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, etc., Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014594 - Northern Pacific Engineering Drawing: Shop Plan - Laterals, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014595 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 168 (24), West of Rivulet, Montana, undated
- ItemBB014596 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 168 (24), West of Rivulet, Montana, undated
- 7372 more...