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
- 737 more...
- ItemBB015008 - Northern Pacific Engineering Drawing: Shop Plan - Grating Detail, Bridge 50 - Beaver Creek, West of Childs, Montana, undated
- ItemBB015009 - Northern Pacific Engineering Drawing: Detail of Approach, Bridge 50 - Beaver Creek, West of Childs, Montana, undated
- ItemBB015010 - Northern Pacific Engineering Drawing: General Plan/Elevation, Bridge 73 - Clark Fork River, West of Noxon, Montana, 1955
- ItemBB015011 - Northern Pacific Engineering Drawing: Girder Details, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB015012 - Northern Pacific Engineering Drawing: Shoes/Inspection Walk, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB015013 - Northern Pacific Engineering Drawing: Piers, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB015014 - Northern Pacific Engineering Drawing: Abutment/Log Bore, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB015015 - Northern Pacific Engineering Drawing: Bar List/Miscellaneous Detail, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB015016 - Northern Pacific Engineering Drawing: Bar Type/Hook, etc., Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- 6982 more...