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
- 1170 more...
- ItemBB015476 - Northern Pacific Engineering Drawing: Walk/Railing Detail, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015477 - Northern Pacific Engineering Drawing: Detail of Walk, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015478 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015479 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous Details, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015480 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015481 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015482 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chords, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015483 - Northern Pacific Engineering Drawing: Shop Plan - Chord/Posts, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015484 - Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- 6549 more...