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
- 5152 more...
- ItemBB020073 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020074 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020075 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020076 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020077 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020078 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020079 - Northern Pacific Engineering Drawing: Shop Plan - Through Plate Girder Span, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020080 - Northern Pacific Engineering Drawing: Proposed Screening, Bridge 70 - Harrison Avenue, Butte, Montana, undated
- ItemBB020081 - Northern Pacific Engineering Drawing: General Plan, Bridge 117 - Highway Under Crossing, West of Bonner, Montana, 1930
- 2567 more...