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
- 1380 more...
- ItemBB015710 - Northern Pacific Engineering Drawing: Shop Plan - Beam/Material, Bridge 40, Deer Lodge, Montana, undated
- ItemBB015711 - Northern Pacific Engineering Drawing: Plan of Pier/Abutment, Bridge 134 (169), West of Chestnut, Montana, 1901
- ItemBB015712 - Northern Pacific Engineering Drawing: Detail of Remodel Substation, Bridge 134 (169), West of Chestnut, Montana, undated
- ItemBB015714 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 134 (169), West of Chestnut, Montana, 1950
- ItemBB015715 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 134 (169), West of Chestnut, Montana, 1950
- ItemBB015716 - Northern Pacific Engineering Drawing: Repair Right End of Pier, Bridge 134 (169), West of Chestnut, Montana, undated
- ItemBB015717 - Northern Pacific Engineering Drawing: Safety Bridge Across Highway, Bridge 134 (169), West of Chestnut, Montana, undated
- ItemBB015718 - Northern Pacific Engineering Drawing: Safety Bridge Across Highway, Bridge 134 (169), West of Chestnut, Montana, undated
- ItemBB015719 - Northern Pacific Engineering Drawing: General Plan/Detail, Bridge 54 - Shippy Creek, West of Perma, Montana, 1926
- 6339 more...