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
- 613 more...
- ItemBB014873 - Northern Pacific Engineering Drawing: Detail of Concrete Trestle, Bridge 37, West of Cardwell, Montana, 1922
- ItemBB014883 - Northern Pacific Engineering Drawing: Steel Detail for Alteration, Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014884 - Northern Pacific Engineering Drawing: Steel Detail for Alteration, Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014885 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014886 - Northern Pacific Engineering Drawing: Steel Detail for Alteration, Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014887 - Northern Pacific Engineering Drawing: Steel Detail for Alteration, Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014888 - Northern Pacific Engineering Drawing: Shop Plan - Stringer, etc., Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014889 - Northern Pacific Engineering Drawing: Shop Plan - Diagram, etc., Bridge 0.1 - No General Plan Found, Drummond, Montana, undated
- ItemBB014890 - Northern Pacific Engineering Drawing: General Plan, Bridge 1.1 - Public Underpass, East of Rye Junction, Washington, 1925
- 7106 more...