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
- 3307 more...
- ItemBB017893 - Northern Pacific Engineering Drawing: Shop Plan - Casting Details, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017894 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Details, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017895 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017896 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017897 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017898 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017899 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017900 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017901 - Northern Pacific Engineering Drawing: Shop Plan - End Posts, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- 4412 more...