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
- 1393 more...
- ItemBB015725 - Northern Pacific Engineering Drawing: Standard Plan Deck Plate Girder (DPG), Bridge 58 - Palouse River, West of Perma, Washington, undated
- ItemBB015726 - Northern Pacific Engineering Drawing: Standard Detail End Bearing, Bridge 58 - Palouse River, West of Perma, Washington, undated
- ItemBB015727 - Northern Pacific Engineering Drawing: Bill of Material, Bridge 58 - Palouse River, West of Perma, Washington, undated
- ItemBB015728 - Northern Pacific Engineering Drawing: Bill of Material, Bridge 58 - Palouse River, West of Perma, Washington, undated
- ItemBB015729 - Northern Pacific Engineering Drawing: East Abutment, Bridge 79.1 - Underpass, West of Greycliff, Montana, undated
- ItemBB015730 - Northern Pacific Engineering Drawing: Sections etc., Bridge 79.1 - Underpass, West of Greycliff, Montana, undated
- ItemBB015731 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 79.1 - Underpass, West of Greycliff, Montana, undated
- ItemBB015732 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 79.1 - Underpass, West of Greycliff, Montana, undated
- ItemBB015733 - Northern Pacific Engineering Drawing: Proposed New Curb, Bridge 79.1 - Underpass, West of Greycliff, Montana, 1951
- 6326 more...