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
- 194 more...
- ItemBB014417 - Northern Pacific Engineering Drawing: Replace Top Cover Plate, Bridge 141 - Clark Fork River, West of Frenchtown, Montana, undated
- ItemBB014418 - Northern Pacific Engineering Drawing: Replace Top Gusset Plate, Bridge 141 - Clark Fork River, West of Frenchtown, Montana, undated
- ItemBB014419 - Northern Pacific Engineering Drawing: Detail Telegraph West Supports, Bridge 141 - Clark Fork River, West of Frenchtown, Montana, undated
- ItemBB014420 - Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 43 - Little Blackfoot Creek, West of Bradley, Montana, 1909
- ItemBB014421 - Northern Pacific Engineering Drawing: Falsework/Repair for Pier, Bridge 43 - Little Blackfoot Creek, West of Bradley, Montana, undated
- ItemBB014422 - Northern Pacific Engineering Drawing: Frame and Location Plans, Bridge 0.1, Shelton, Washington, 1944
- ItemBB014423 - Northern Pacific Engineering Drawing: Plate Girder Details, Bridge 0.1, Shelton, Washington, undated
- ItemBB014424 - Northern Pacific Engineering Drawing: Plate Girder and Bearing Details, Bridge 0.1, Shelton, Washington, undated
- ItemBB014425 - Northern Pacific Engineering Drawing: Retaining Walls, Bridge 0.1, Shelton, Washington, undated
- 7525 more...