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
- 3398 more...
- ItemBB017984 - Northern Pacific Engineering Drawing: Standard Plan Through Plate Girder, Bridge 0 - Jocko River, North of Dixon, Montana, undated
- ItemBB017985 - Northern Pacific Engineering Drawing: Detail of Abutments, Bridge 48, West of Bradley, Montana, 1917
- ItemBB017986 - Northern Pacific Engineering Drawing: Concrete Shims/Wing Wall, Bridge 48, West of Bradley, Montana, undated
- ItemBB017987 - Northern Pacific Engineering Drawing: Concrete Shims/Slab, Bridge 48, West of Bradley, Montana, undated
- ItemBB017988 - Northern Pacific Engineering Drawing: Safety Walk, Bridge 48, West of Bradley, Montana, undated
- ItemBB017989 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 18.1, West of Willow Creek, Montana, 1917
- ItemBB017990 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 21 - Irrigation Canal, West of Laurel, Montana, 1917
- ItemBB017991 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 139, West of Chestnut, Montana, 1918
- ItemBB017992 - Northern Pacific Engineering Drawing: Concrete Trestle, Bridge 146, West of Bozeman, Montana, 1917
- 4321 more...