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
- 4879 more...
- ItemBB019761 - Northern Pacific Engineering Drawing: Shop Plan - Span/Miscellaneous, Bridge 15.1 - 5th Street Waterway, South of Titlow, Washington, undated
- ItemBB019762 - Northern Pacific Engineering Drawing: Construct Public Pedestrian Walk, Bridge 15.1 - 5th Street Waterway, South of Titlow, Washington, undated
- ItemBB019763 - Northern Pacific Engineering Drawing: Overhead Centerline Bottom Stringer, Bridge 16+1073, Steilacoom, Washington, undated
- ItemBB019773 - Northern Pacific Engineering Drawing: Masonry Design, Bridge 53, West of Garrison, Montana, undated
- ItemBB019774 - Northern Pacific Engineering Drawing: Standard Plan 20 Foot Beam Girder, Bridge 53, West of Garrison, Montana, undated
- ItemBB019775 - Northern Pacific Engineering Drawing: Plan of Pony Truss, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1903
- ItemBB019776 - Northern Pacific Engineering Drawing: General Plan, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1914
- ItemBB019778 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1948
- ItemBB019779 - Northern Pacific Engineering Drawing: Tie Dap Plan, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1929
- 2840 more...