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
- 1364 more...
- 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
- ItemBB015698 - Northern Pacific Engineering Drawing: Detail of South Abutment, Bridge 17 - Highway, South of Woodinville, Washington, undated
- ItemBB015699 - Northern Pacific Engineering Drawing: Detail of Slab, Bridge 17 - Highway, South of Woodinville, Washington, undated
- ItemBB015700 - Northern Pacific Engineering Drawing: Shop Plan - Undercrossing, Bridge 17 - Highway, South of Woodinville, Washington, undated
- ItemBB015701 - Northern Pacific Engineering Drawing: General Plan, Bridge 233 - Prickly Pear Creek, East Helena, Montana, 1928
- ItemBB015702 - Northern Pacific Engineering Drawing: Steel Details, Bridge 233 - Prickly Pear Creek, East Helena, Montana, undated
- 6355 more...