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
- 5258 more...
- ItemBB020299 - Northern Pacific Engineering Drawing: Shop Plan - Girder 1 and 2, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020300 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam and Stringer, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020301 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020302 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 0.1 - Montana Street, Butte, Montana, undated
- ItemBB020303 - Northern Pacific Engineering Drawing: General Layout, Bridge 79.1 - Highway Underpass, West of Greycliff, Montana, undated
- ItemBB020304 - Northern Pacific Engineering Drawing: Steel Details, Bridge 79.1 - Highway Underpass, West of Greycliff, Montana, undated
- ItemBB020305 - Northern Pacific Engineering Drawing: Deck and Walks, Bridge 79.1 - Highway Underpass, West of Greycliff, Montana, 1936
- ItemBB020306 - Northern Pacific Engineering Drawing: West Abutment, Bridge 79.1 - Highway Underpass, West of Greycliff, Montana, undated
- ItemBB020307 - Northern Pacific Engineering Drawing: Concrete Trestle, Bridge 147, West of Bozeman, Montana, undated
- 2461 more...