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
- 2853 more...
- ItemBB017382 - Northern Pacific Engineering Drawing: General Plan, Bridge 3.1, West of Logan, Montana, 1928
- ItemBB017383 - Northern Pacific Engineering Drawing: Reinforced Concrete Trestle, Bridge 12, West of Willow Creek, Montana, 1927
- ItemBB017384 - Northern Pacific Engineering Drawing: Reinforced Concrete Trestle, Bridge 13, West of Willow Creek, Montana, 1927
- ItemBB017385 - Northern Pacific Engineering Drawing: Reinforced Concrete Trestle, Bridge 36, West of Cardwell, Montana, 1929
- ItemBB017386 - Northern Pacific Engineering Drawing: General Plan, Bridge 0, Butte, Montana, undated
- ItemBB017387 - Northern Pacific Engineering Drawing: Steel Details, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017389 - Northern Pacific Engineering Drawing: General Plan, Bridge 0 - Silver Bow Creek, Butte, Montana, 1930
- ItemBB017390 - Northern Pacific Engineering Drawing: Detail of Abutments, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017391 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- 4866 more...