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
- 2555 more...
- ItemBB017041 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 116 - Missoula River, West of Bonner, Montana, undated
- ItemBB017042 - Northern Pacific Engineering Drawing: Shim Plan Details, Bridge 116 - Missoula River, West of Bonner, Montana, undated
- ItemBB017043 - Northern Pacific Engineering Drawing: High Water Cross Section, Bridge 116 - Missoula River, West of Bonner, Montana, undated
- ItemBB017044 - Northern Pacific Engineering Drawing: Survey for Location, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017045 - Northern Pacific Engineering Drawing: Proposed Location/Arrangement, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017046 - Northern Pacific Engineering Drawing: Masonry as Constructed, Bridge 114.1 - Missoula River, West of Bonner, Montana, 1907
- ItemBB017047 - Northern Pacific Engineering Drawing: Detail of Abutments, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017048 - Northern Pacific Engineering Drawing: Proposed Extension South Wing, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017049 - Northern Pacific Engineering Drawing: Sketch Half Top View, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- 5164 more...