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
- 5619 more...
- ItemBB020715 - Northern Pacific Engineering Drawing: Ballast Plate/Details, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020716 - Northern Pacific Engineering Drawing: Drain/Abutment Handrail, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020717 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020718 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020719 - Northern Pacific Engineering Drawing: Shoofly Alignment, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020720 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020721 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020722 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020723 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 176 - Highway I-90, Westfall, Montana, undated
- 2100 more...