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
- 4765 more...
- ItemBB019591 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 24.1, West of Blossburg, Montana, 1958
- ItemBB019593 - Northern Pacific Engineering Drawing: Prestressed Concrete, Bridge 157, West of Belgrade, Montana, undated
- ItemBB019594 - Northern Pacific Engineering Drawing: Precast Concrete Cap, Bridge 157, West of Belgrade, Montana, undated
- ItemBB019595 - Northern Pacific Engineering Drawing: Deck/Walk Detail/Girder/Slabs, Bridge 157, West of Belgrade, Montana, undated
- ItemBB019596 - Northern Pacific Engineering Drawing: Field Erection Detail, Bridge 157, West of Belgrade, Montana, undated
- ItemBB019597 - Northern Pacific Engineering Drawing: Reconstruction/General Plan, Bridge 157.1 - Camp Creek, West of Belgrade, Montana, 1968
- ItemBB019598 - Northern Pacific Engineering Drawing: Reconstruction/Abutments, Bridge 157.1 - Camp Creek, West of Belgrade, Montana, undated
- ItemBB019599 - Northern Pacific Engineering Drawing: Reconstruction/Piers/Bridge, Bridge 157.1 - Camp Creek, West of Belgrade, Montana, undated
- ItemBB019600 - Northern Pacific Engineering Drawing: Reconstruction/Steel End Span, Bridge 157.1 - Camp Creek, West of Belgrade, Montana, undated
- 2954 more...