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
- 2958 more...
- ItemBB017489 - Northern Pacific Engineering Drawing: Shop Plan - Bearing Blocks, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017490 - Northern Pacific Engineering Drawing: Shop Plan - Bearing Blocks, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017491 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Details, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017492 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Details, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017493 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal Brace, Bridge 36 - Clark Fork River, West of Thompson Falls, Montana, undated
- ItemBB017494 - Northern Pacific Engineering Drawing: Rebuild Pier, Bridge 8 - Van Sycle Creek, South of Zangar Junction, Washington, 1965
- ItemBB017495 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 8 - Van Sycle Creek, South of Zangar Junction, Washington, undated
- ItemBB017496 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 8 - Van Sycle Creek, South of Zangar Junction, Washington, undated
- ItemBB017497 - Northern Pacific Engineering Drawing: Rebuild Pier, Bridge 8.3 - Van Sycle Creek, South of Zangar Junction, Washington, 1962
- 4761 more...