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
- 544 more...
- ItemBB014800 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 23 - Chehalis River, West of Pe Ell, Washington, undated
- ItemBB014801 - Northern Pacific Engineering Drawing: General Plan/Detail West Abutment, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, 1936
- ItemBB014802 - Northern Pacific Engineering Drawing: Masonry Detail/Pier/Abutment, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014803 - Northern Pacific Engineering Drawing: Detail 30 Foot I - Beam Span, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014804 - Northern Pacific Engineering Drawing: Detail 26 Foot I - Beam Span, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014805 - Northern Pacific Engineering Drawing: Shop Plan - Erection/Brace, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014806 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014807 - Northern Pacific Engineering Drawing: Ballast Deck, Bridge 195 - 6 - Mile Creek, West of Toston, Montana, undated
- ItemBB014808 - Northern Pacific Engineering Drawing: Bridges4 and 219.1 General/Masonry, Bridges 219 & 219.1, West of Townsend, Montana, 1918
- 7175 more...