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
- 5594 more...
- ItemBB020690 - Northern Pacific Engineering Drawing: Shop Plan - Walkway Bracket, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020691 - Northern Pacific Engineering Drawing: General Layout, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020692 - Northern Pacific Engineering Drawing: Title Sheet, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020693 - Northern Pacific Engineering Drawing: Substructure /Shoe Layout, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020694 - Northern Pacific Engineering Drawing: Abutment Number 1, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020695 - Northern Pacific Engineering Drawing: Abutment Number 1 Reinforcement, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020696 - Northern Pacific Engineering Drawing: Abutment Number 3, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020697 - Northern Pacific Engineering Drawing: Abutment Number 3 Reinforcement, Bridge 176 - Highway I-90, Westfall, Montana, undated
- ItemBB020698 - Northern Pacific Engineering Drawing: Wing Wall Abutment 1, Bridge 176 - Highway I-90, Westfall, Montana, undated
- 2125 more...