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
- 3300 more...
- ItemBB017886 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Steel, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017887 - Northern Pacific Engineering Drawing: Shop Plan - Steel - Telegraph Wire, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017888 - Northern Pacific Engineering Drawing: Shop Plan - Ladder - Steel/Bracket, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017889 - Northern Pacific Engineering Drawing: Shop Plan - Bearing Plan, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017890 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017891 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017892 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- 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
- 4419 more...