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
- 5352 more...
- ItemBB020448 - Northern Pacific Engineering Drawing: Shop Plan - Fixed Beam, Stringers, Bridge 43, North of Deer Lodge, Montana, undated
- ItemBB020449 - Northern Pacific Engineering Drawing: General and Masonry Plan, Bridge 30.1 - Boulder River, West of Lime Spur, Montana, 1928
- ItemBB020450 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 30.1 - Boulder River, West of Lime Spur, Montana, undated
- ItemBB020451 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 30.1 - Boulder River, West of Lime Spur, Montana, undated
- ItemBB020452 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 30.1 - Boulder River, West of Lime Spur, Montana, undated
- ItemBB020453 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0 - Esquatzel Coulee, West of Mesa, Washington, undated
- ItemBB020454 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0 - Esquatzel Coulee, West of Mesa, Washington, undated
- ItemBB020455 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 0 - Esquatzel Coulee, West of Mesa, Washington, undated
- ItemBB020456 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 0 - Esquatzel Coulee, West of Mesa, Washington, undated
- 2367 more...