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
- 2562 more...
- ItemBB017048 - Northern Pacific Engineering Drawing: Proposed Extension South Wing, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017049 - Northern Pacific Engineering Drawing: Sketch Half Top View, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017050 - Northern Pacific Engineering Drawing: Nose Angles Piers, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017051 - Northern Pacific Engineering Drawing: Nose Angles Piers, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017052 - Northern Pacific Engineering Drawing: Reinforcement Column/End Post, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017053 - Northern Pacific Engineering Drawing: Reinforcement of Column, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017054 - Northern Pacific Engineering Drawing: Reinforcement Column Bents, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017055 - Northern Pacific Engineering Drawing: Details of Piers, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017056 - Northern Pacific Engineering Drawing: Details of Piers, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- 5157 more...