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
- 1006 more...
- ItemBB015287 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Bracket, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015288 - Northern Pacific Engineering Drawing: Shop Plan - With Floor Plan, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015289 - Northern Pacific Engineering Drawing: Shop Plan - With Floor Plan, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015290 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Plate, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015291 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Bracket, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015292 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Bracket, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015293 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Bracket, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015294 - Northern Pacific Engineering Drawing: Shop Plan - Walkway/Stringer, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015295 - Northern Pacific Engineering Drawing: Reinforce Concrete Trestle, Bridge 94, West of Colby, Montana, 1917
- 6713 more...