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
- 315 more...
- ItemBB014545 - Northern Pacific Engineering Drawing: General Plan, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, 1939
- ItemBB014546 - Northern Pacific Engineering Drawing: Detail of Strut S1, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014547 - Northern Pacific Engineering Drawing: Detail of Strut S2, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014548 - Northern Pacific Engineering Drawing: Reinforce Top Flange, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, 1940
- ItemBB014550 - Northern Pacific Engineering Drawing: Shim Plan and Steel Details, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014551 - Northern Pacific Engineering Drawing: Tie Details, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014552 - Northern Pacific Engineering Drawing: Section Deck and Bill of Material, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014554 - Northern Pacific Engineering Drawing: Shim Plan, Bridge 114.1 - Clark Fork River, West of Bonner, Montana, undated
- ItemBB014556 - Northern Pacific Engineering Drawing: Ties Switch Machinery, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 7404 more...