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
- 4600 more...
- ItemBB019285 - Northern Pacific Engineering Drawing: 100 Foot Through Plate Girder, Bridge 3.2 - Lake Pend Oreille, West of Sandpoint, Idaho, undated
- ItemBB019286 - Northern Pacific Engineering Drawing: Span for Interlocking Signal, Bridge 3.2 - Lake Pend Oreille, West of Sandpoint, Idaho, undated
- ItemBB019287 - Northern Pacific Engineering Drawing: Remodel of Powerhouse Bridge, Bridge 3.2 - Lake Pend Oreille, West of Sandpoint, Idaho, undated
- ItemBB019288 - Northern Pacific Engineering Drawing: Centerline at Through Plate Girder Span, Bridge 3.2 - Lake Pend Oreille, West of Sandpoint, Idaho, undated
- ItemBB019289 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 9 - Jefferson River, South of Renova, Montana, 1966
- ItemBB019290 - Northern Pacific Engineering Drawing: General Plan, Bridge 102.1, West of Cunningham, Washington, 1898
- ItemBB019292 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 102.1, West of Cunningham, Washington, 1958
- ItemBB019293 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 102.1, West of Cunningham, Washington, 1944
- ItemBB019294 - Northern Pacific Engineering Drawing: General Plan, Bridge 102, West of Cunningham, Washington, 1898
- 3119 more...