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
- 4362 more...
- ItemBB019040 - Northern Pacific Engineering Drawing: Walk Addition, Bridge 87 (11?), West of Big Timber, Montana, undated
- ItemBB019041 - Northern Pacific Engineering Drawing: General Plan, Bridge 100, West of Springdale, Montana, 1909
- ItemBB019042 - Northern Pacific Engineering Drawing: Underpinning Abutment, Bridge 100, West of Springdale, Montana, undated
- ItemBB019043 - Northern Pacific Engineering Drawing: Add Safety Walk, Bridge 100, West of Springdale, Montana, undated
- ItemBB019044 - Northern Pacific Engineering Drawing: General Plan/Detail Pile, Bridge 190, West of Lombard, Montana, 1909
- ItemBB019045 - Northern Pacific Engineering Drawing: Plan of Abutment, Bridge 190, West of Lombard, Montana, undated
- ItemBB019046 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 190, West of Lombard, Montana, undated
- ItemBB019047 - Northern Pacific Engineering Drawing: Deer Lodge River, Bridge 14 - Deer Lodge River, Durant, Montana, undated
- ItemBB019048 - Northern Pacific Engineering Drawing: Detail Abutment/General Plan, Bridge 14 - Deer Lodge River , Durant, Montana, undated
- 3357 more...