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
- 7175 more...
- ItemBB029245 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 83 - Harvey Creek, West of Bearmouth, Montana, 1961
- ItemBB029247 - Northern Pacific Engineering Drawing: Erection/Concrete/Anchor Layout, Bridge 83 - Harvey Creek, West of Bearmouth, Montana, undated
- ItemBB029248 - Northern Pacific Engineering Drawing: Shop Span/Steel Detail, Bridge 83 - Harvey Creek, West of Bearmouth, Montana, undated
- ItemBB029249 - Northern Pacific Engineering Drawing: Deck Detail/Bill of Material, Bridge 83 - Harvey Creek, West of Bearmouth, Montana, undated
- ItemBB029250 - Northern Pacific Engineering Drawing: General Plans, Bridge 26+4381 - Reservation Road, South of Nisqually, Washington, undated
- ItemBB029251 - Northern Pacific Engineering Drawing: General Plans, Bridge 26+4381 - Reservation Road, South of Nisqually, Washington, 1912
- ItemBB029252 - Northern Pacific Engineering Drawing: General Plans, Bridge 37+5205 - Waldrick Road, South of East Olympia, Washington, undated
- ItemBB029253 - Northern Pacific Engineering Drawing: Bent Details, Bridge 37+5205 - Waldrick Road, South of East Olympia, Washington, undated
- ItemBB029254 - Northern Pacific Engineering Drawing: Treated Timber Detail, Bridge 37+5205 - Waldrick Road, South of East Olympia, Washington, undated
- 544 more...