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
- 1192 more...
- ItemBB015520 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015521 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015522 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame/Brace, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015523 - Northern Pacific Engineering Drawing: Plan of East Approach, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015524 - Northern Pacific Engineering Drawing: Replace West Approach, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015525 - Northern Pacific Engineering Drawing: Sketch General Layout, Bridge 29 - Thompson Avenue, Sumner, Washington, 1936
- ItemBB015526 - Northern Pacific Engineering Drawing: Proposed Undercrossing, Bridge 29 - Thompson Avenue, Sumner, Washington, undated
- ItemBB015527 - Northern Pacific Engineering Drawing: Sketch General Layout, Bridge 29 - Thompson Avenue, Sumner, Washington, undated
- ItemBB015528 - Northern Pacific Engineering Drawing: Detail of Bridge Floor, Bridge 29 - Thompson Avenue, Sumner, Washington, undated
- 6527 more...