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
- 6157 more...
- ItemBB027899 - Northern Pacific Engineering Drawing: Steel Details, Bridge 23, West of Blossburg, Montana, undated
- ItemBB027900 - Northern Pacific Engineering Drawing: Deck Details/Bill of Material, Bridge 23, West of Blossburg, Montana, undated
- ItemBB027901 - Northern Pacific Engineering Drawing: Shop Plan - Steel Detail, Bridge 23, West of Blossburg, Montana, undated
- ItemBB027903 - Northern Pacific Engineering Drawing: Bent/Abutment Details, Bridge 24 - Little Blackfoot River, West of Blossburg, Montana, undated
- ItemBB027904 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 24 - Little Blackfoot River, West of Blossburg, Montana, undated
- ItemBB027905 - Northern Pacific Engineering Drawing: 30 Foot Beam Girder, Bridge 24 - Little Blackfoot River, West of Blossburg, Montana, undated
- ItemBB027906 - Northern Pacific Engineering Drawing: Lateral Bracing, Bridge 24 - Little Blackfoot River, West of Blossburg, Montana, undated
- ItemBB027907 - Northern Pacific Engineering Drawing: Detail Additional Material, Bridge 24 - Little Blackfoot River, West of Blossburg, Montana, 1909
- ItemBB027908 - Northern Pacific Engineering Drawing: General Plan/Detail Abutment, Bridge 23.1, West of Blossburg, Montana, 1909
- 1562 more...