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
- 1359 more...
- ItemBB015689 - Northern Pacific Engineering Drawing: Shop Plan - Steel Channel, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015690 - Northern Pacific Engineering Drawing: Shop Plan - Strut, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015691 - Northern Pacific Engineering Drawing: Shop Plan - Shoes, etc., Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015692 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015693 - Northern Pacific Engineering Drawing: Marking Diagram, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015694 - Northern Pacific Engineering Drawing: Reinforce Concrete Trestle, Bridge 205, Townsend, Montana, 1926
- ItemBB015695 - Northern Pacific Engineering Drawing: General/Location/Placement/Profile, Bridge 17 - Highway, South of Woodinville, Washington, 1926
- ItemBB015696 - Northern Pacific Engineering Drawing: Detail of Girders, Bridge 17 - Highway, South of Woodinville, Washington, undated
- ItemBB015697 - Northern Pacific Engineering Drawing: Detail of North Abutment, Bridge 17 - Highway, South of Woodinville, Washington, undated
- 6360 more...