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
- 5113 more...
- ItemBB020015 - Northern Pacific Engineering Drawing: Spans 2 and 3, Bridge 170, West of Rivulet, Montana, undated
- ItemBB020016 - Northern Pacific Engineering Drawing: Reinforcement and Lateral Bracing, Bridge 170, West of Rivulet, Montana, undated
- ItemBB020017 - Northern Pacific Engineering Drawing: Masonry/Constructed, Bridge 170, West of Rivulet, Montana, undated
- ItemBB020018 - Northern Pacific Engineering Drawing: Anchor Bolt Set Plan, Bridge 170, West of Rivulet, Montana, undated
- ItemBB020020 - Northern Pacific Engineering Drawing: Map and Outline, Bridge 62 - Evergreen Road, Trentwood, Washington, undated
- ItemBB020021 - Northern Pacific Engineering Drawing: Layout, Bridge 62 - Evergreen Road, Trentwood, Washington, undated
- ItemBB020022 - Northern Pacific Engineering Drawing: Girder Details, Bridge 62 - Evergreen Road, Trentwood, Washington, undated
- ItemBB020023 - Northern Pacific Engineering Drawing: Abutments, Bridge 62 - Evergreen Road, Trentwood, Washington, undated
- ItemBB020024 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 62 - Evergreen Road, Trentwood, Washington, undated
- 2606 more...