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
- 1178 more...
- ItemBB015484 - Northern Pacific Engineering Drawing: Shop Plan - Post/Diagonal, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015485 - Northern Pacific Engineering Drawing: Shop Plan - Portal, etc., Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015486 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, etc., Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015487 - Northern Pacific Engineering Drawing: Shop Plan - Stringer, etc., Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015488 - Northern Pacific Engineering Drawing: Detail of Support Telegraph, Bridge 206 (259) - Missouri River, West of Townsend, Montana, undated
- ItemBB015492 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 41 - Trap Creek, West of Lebam, Washington, 1946
- ItemBB015493 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 41 - Trap Creek, West of Lebam, Washington, 1937
- ItemBB015494 - Northern Pacific Engineering Drawing: Detail of Proposed Girder Span, Bridge 41 - Trap Creek, West of Lebam, Washington, 1926
- ItemBB015514 - Northern Pacific Engineering Drawing: General Plan, Bridge 26 - Thompson River, West of Eddy, Montana, 1896
- 6541 more...