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
- 5641 more...
- ItemBB020751 - Northern Pacific Engineering Drawing: 51 Foot Approach Spans, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020752 - Northern Pacific Engineering Drawing: Steel Towers, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020753 - Northern Pacific Engineering Drawing: Abutments 6/1, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020754 - Northern Pacific Engineering Drawing: Tower Pedestals, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020755 - Northern Pacific Engineering Drawing: Ballasted Deck, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020756 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020757 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolt, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020758 - Northern Pacific Engineering Drawing: Shop Plan - Girder/Column Pedestal, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- ItemBB020759 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 1.4 - 7th Avenue, South of Sunset Junction, Washington, undated
- 2078 more...