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
- 3956 more...
- ItemBB018582 - Northern Pacific Engineering Drawing: Rebuild Span Reinforcement, Bridge 26 - Tilden Creek, West of Park City, Montana, 1958
- ItemBB018583 - Northern Pacific Engineering Drawing: Rebuild as Span Reinforced Concrete Tee, Bridge 55, West of Craver, Montana, 1955
- ItemBB018588 - Northern Pacific Engineering Drawing: General Plan, Bridge 24.1 - Public Underpass, North of Woodinville, Washington, 1951
- ItemBB018589 - Northern Pacific Engineering Drawing: Shoofly Trestle, Bridge 24.1 - Public Underpass, North of Woodinville, Washington, undated
- ItemBB018590 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 36 - Deschutes River, South of East Olympia, Washington, 1961
- ItemBB018591 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 36 - Deschutes River, South of East Olympia, Washington, 1961
- ItemBB018592 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolt, Bridge 36 - Deschutes River, South of East Olympia, Washington, undated
- ItemBB018593 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 36 - Deschutes River, South of East Olympia, Washington, undated
- ItemBB018594 - Northern Pacific Engineering Drawing: Shop Plan - Casting, etc., Bridge 36 - Deschutes River, South of East Olympia, Washington, undated
- 3763 more...