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
- 617 more...
- 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
- ItemBB014891 - Northern Pacific Engineering Drawing: Temporary Bridge Detail, Bridge 1.1 - Public Underpass, East of Rye Junction, Washington, undated
- ItemBB014892 - Northern Pacific Engineering Drawing: Detail of Through Plate Girder, Bridge 1.1 - Public Underpass, East of Rye Junction, Washington, undated
- ItemBB014893 - Northern Pacific Engineering Drawing: Shop Plan - Girder Floor System, Bridge 1.1 - Public Underpass, East of Rye Junction, Washington, undated
- ItemBB014894 - Northern Pacific Engineering Drawing: Plan of Abutments, Bridge 128, Eltopia, Washington, undated
- 7102 more...