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
- 5277 more...
- ItemBB020371 - Northern Pacific Engineering Drawing: Guides, Bearings and Machinery, Bridge 9 - Des Chutes River, West of Olympia, Washington, undated
- ItemBB020372 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 9 - Des Chutes River, West of Olympia, Washington, undated
- ItemBB020373 - Northern Pacific Engineering Drawing: Rail Lock - Air Buffer, Bridge 9 - Des Chutes River, West of Olympia, Washington, undated
- ItemBB020374 - Northern Pacific Engineering Drawing: Navigation Light and Plan of Walk, Bridge 9 - Des Chutes River, West of Olympia, Washington, undated
- ItemBB020375 - Northern Pacific Engineering Drawing: Proposed Bridge, Bridge 23.2 - Bitter Root River, Montana, undated
- ItemBB020376 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 23.2 - Bitter Root River, Montana, undated
- ItemBB020378 - Northern Pacific Engineering Drawing: Abutment Number 1 and 2, Bridge 6.1 - Redmond Way, Redmond, Washington, undated
- ItemBB020379 - Northern Pacific Engineering Drawing: Abutment Details, Bridge 6.1 - Redmond Way, Redmond, Washington, undated
- ItemBB020380 - Northern Pacific Engineering Drawing: Fixed Beam Layout and Girder Elevation, Bridge 6.1 - Redmond Way, Redmond, Washington, undated
- 2442 more...