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
- 2765 more...
- ItemBB017252 - Northern Pacific Engineering Drawing: Erection Diagram, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017253 - Northern Pacific Engineering Drawing: Girders, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017254 - Northern Pacific Engineering Drawing: Columns, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017255 - Northern Pacific Engineering Drawing: Struts and Bracing, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017256 - Northern Pacific Engineering Drawing: Bents and 50 Foot Deck Plate Girder (DPG), Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017257 - Northern Pacific Engineering Drawing: Standard 50 Foot Deck Plate Girder (DPG), Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, 1937
- ItemBB017258 - Northern Pacific Engineering Drawing: Standard 50 Foot Deck Plate Girder (DPG), Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, 1937
- ItemBB017264 - Northern Pacific Engineering Drawing: Plan and Profile of Map, Bridge 119 - Harris Street, Missoula, Montana, undated
- ItemBB017265 - Northern Pacific Engineering Drawing: Bridge Plans and Quantities, Bridge 119 - Harris Street, Missoula, Montana, undated
- 4954 more...