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
- 1183 more...
- 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
- ItemBB015515 - Northern Pacific Engineering Drawing: General Plan, Bridge 26 - Thompson River, West of Eddy, Montana, 1896
- ItemBB015516 - Northern Pacific Engineering Drawing: Piers, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015517 - Northern Pacific Engineering Drawing: Plan of New Pier, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015518 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- ItemBB015519 - Northern Pacific Engineering Drawing: Tie Frame/Raising Block, Bridge 26 - Thompson River, West of Eddy, Montana, undated
- 6536 more...