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
- 4385 more...
- ItemBB019063 - Northern Pacific Engineering Drawing: Diagonal/Bolts, Bridge 51, West of Craver, Montana, undated
- ItemBB019064 - Northern Pacific Engineering Drawing: Remodel Bridge, Bridge 24 - Sammamish River, Woodinville, Washington, 1962
- ItemBB019065 - Northern Pacific Engineering Drawing: Remodel Bridge, Bridge 24 - Sammamish River, Woodinville, Washington, undated
- ItemBB019066 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 24 - Sammamish River, Woodinville, Washington, undated
- ItemBB019067 - Northern Pacific Engineering Drawing: Tie Framing Plan, Bridge 24 - Sammamish River, Woodinville, Washington, undated
- ItemBB019068 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 28 - South Pine Creek, South of Rosalia, Washington, 1954
- ItemBB019069 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 28 - South Pine Creek, South of Rosalia, Washington, 1940
- ItemBB019070 - Northern Pacific Engineering Drawing: 30 Foot Beam Span, Bridge 28 - South Pine Creek, South of Rosalia, Washington, undated
- ItemBB019071 - Northern Pacific Engineering Drawing: General Plan/Falsework, Bridge 103.1 & Others, West of Cunningham, Washington, undated
- 3334 more...