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
- 3316 more...
- ItemBB017902 - Northern Pacific Engineering Drawing: Shop Plan - End Posts, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017903 - Northern Pacific Engineering Drawing: Shop Plan - End Posts, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017904 - Northern Pacific Engineering Drawing: Shop Plan - End Posts, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017905 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017906 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017907 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017908 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017909 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017910 - Northern Pacific Engineering Drawing: Shop Plan - Details, Bridge 16 - 68th Street, South of Kirkland, Washington, undated
- 4403 more...