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
- 3157 more...
- ItemBB017733 - Northern Pacific Engineering Drawing: Steel Deck Plate Girder (DPG) Spans, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017734 - Northern Pacific Engineering Drawing: Steel Deck Plate Girder (DPG) Spans, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017735 - Northern Pacific Engineering Drawing: Shop Plan - Steel Frame, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017736 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017737 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017738 - Northern Pacific Engineering Drawing: Shop Plan - Sole Plate, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017739 - Northern Pacific Engineering Drawing: Shop Plan - Drain Pipe, Bridge 29.16 - Highway 410, Sumner, Washington, undated
- ItemBB017740 - Northern Pacific Engineering Drawing: General Plan, Bridge 1 - State Boulevard, Helena, Montana, 1964
- ItemBB017741 - Northern Pacific Engineering Drawing: Steel Spans S1 West and S5 East, Bridge 1 - State Boulevard, Helena, Montana, undated
- 4562 more...