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
- 2735 more...
- ItemBB017221 - Northern Pacific Engineering Drawing: Bents 4 and 6, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017222 - Northern Pacific Engineering Drawing: Bar List and Miscellaneous Detail, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017223 - Northern Pacific Engineering Drawing: 40 Foot and 50 Foot Deck Plate Girder (DPG) Span, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017224 - Northern Pacific Engineering Drawing: 40 Foot Deck Plate Girder (DPG) Spans, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017225 - Northern Pacific Engineering Drawing: Abutment - 50 Foot Deck Plate Girder (DPG) Span, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017226 - Northern Pacific Engineering Drawing: General Plan, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017227 - Northern Pacific Engineering Drawing: Pier Number 5, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017228 - Northern Pacific Engineering Drawing: Concrete Blocks, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017229 - Northern Pacific Engineering Drawing: 161 Foot - 2 Inch Deck Truss, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- 4984 more...