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
- 4264 more...
- ItemBB018897 - Northern Pacific Engineering Drawing: Extensometer Tests, Bridge 113 (150) - Yellowstone River, West of Mission, Montana, undated
- ItemBB018898 - Northern Pacific Engineering Drawing: Piers, Bridge 113 (150) - Yellowstone River, West of Mission, Montana, undated
- ItemBB018899 - Northern Pacific Engineering Drawing: Concrete Detail Pier 2, Bridge 113 (150) - Yellowstone River, West of Mission, Montana, undated
- ItemBB018901 - Northern Pacific Engineering Drawing: Details/Bill of Material, Bridge 113 (150) - Yellowstone River, West of Mission, Montana, undated
- ItemBB018902 - Northern Pacific Engineering Drawing: Span Concrete Trestle, Bridge 101.1, West of Cunningham, Washington, 1914
- ItemBB018903 - Northern Pacific Engineering Drawing: Detail Bent/Abutment, Bridge 106.2, West of Cunningham, Washington, 1914
- ItemBB018904 - Northern Pacific Engineering Drawing: Changes on South Abutment, Bridge 9.1 - Lk .Wash Boulevard, South of Wilburton, Washington, 1915
- ItemBB018905 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 9.1 - Lk .Wash Boulevard, South of Wilburton, Washington, undated
- ItemBB018906 - Northern Pacific Engineering Drawing: Tie Framing Plan, Bridge 9.1 - Lk .Wash Boulevard, South of Wilburton, Washington, undated
- 3455 more...