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
- 4881 more...
- 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
- ItemBB019780 - Northern Pacific Engineering Drawing: Remodel Bridge, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1962
- ItemBB019781 - Northern Pacific Engineering Drawing: Remodel Bridge, Bridge 23 (16) - Sammamish River, Woodinville, Washington, 1962
- 2838 more...