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
- 2587 more...
- ItemBB017073 - Northern Pacific Engineering Drawing: Detail Cross Frame/Lateral/Span, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017074 - Northern Pacific Engineering Drawing: Columns, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017075 - Northern Pacific Engineering Drawing: Bent Column/Transverse Brace, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017076 - Northern Pacific Engineering Drawing: Marking Diagram, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017077 - Northern Pacific Engineering Drawing: Replace Broken Connection Angle, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017078 - Northern Pacific Engineering Drawing: Detail Telegraph West Support, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017079 - Northern Pacific Engineering Drawing: Extension of Telegraph Brackets, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017080 - Northern Pacific Engineering Drawing: Add Approach Span, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017081 - Northern Pacific Engineering Drawing: Abutment 1 Details, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- 5132 more...