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
- 3324 more...
- ItemBB017910 - Northern Pacific Engineering Drawing: Shop Plan - Details, Bridge 16 - 68th Street, South of Kirkland, Washington, undated
- ItemBB017911 - Northern Pacific Engineering Drawing: Concrete Trestle, Bridge 223 - Spokane Creek, West of Winston, Montana, 1917
- ItemBB017912 - Northern Pacific Engineering Drawing: Replace Concrete Slabs, Bridge 223 - Spokane Creek, West of Winston, Montana, undated
- ItemBB017913 - Northern Pacific Engineering Drawing: General Plan/Pier/Abutment, Bridge 140 (182) - Bozeman Creek, Bozeman, Montana, undated
- ItemBB017914 - Northern Pacific Engineering Drawing: General Plan/Deck Details, Bridge 140 (182) - Bozeman Creek, Bozeman, Montana, undated
- ItemBB017915 - Northern Pacific Engineering Drawing: Beam Span/Miscellaneous Steel, Bridge 140 (182) - Bozeman Creek, Bozeman, Montana, undated
- ItemBB017916 - Northern Pacific Engineering Drawing: Shop Plan - Shop Details, Bridge 140 (182) - Bozeman Creek, Bozeman, Montana, undated
- ItemBB017917 - Northern Pacific Engineering Drawing: Shop Plan - Shop Details, Bridge 140 (182) - Bozeman Creek, Bozeman, Montana, undated
- ItemBB017918 - Northern Pacific Engineering Drawing: General Plan, Bridge 45, West of Mcdonald, Montana, 1917
- 4395 more...