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
- 260 more...
- ItemBB014484 - Northern Pacific Engineering Drawing: General Details Reinforcement Towers, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014485 - Northern Pacific Engineering Drawing: General Details Reinforce, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014486 - Northern Pacific Engineering Drawing: Transverse Brace Details, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014487 - Northern Pacific Engineering Drawing: Longitudinal Brace Detail, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014488 - Northern Pacific Engineering Drawing: Jack Bracket and Bearing, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014489 - Northern Pacific Engineering Drawing: Bearing and Connect Details, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014490 - Northern Pacific Engineering Drawing: Erection Column Reinforcement, Bridge 7 - Marent Gulch, West of Nagos, Montana, 1944
- ItemBB014491 - Northern Pacific Engineering Drawing: Erection Column Reinforcement, Bridge 7 - Marent Gulch, West of Nagos, Montana, 1944
- ItemBB014492 - Northern Pacific Engineering Drawing: Reinforce Bents, Bridge 7 - Marent Gulch, West of Nagos, Montana, 1945
- 7459 more...