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
- 7291 more...
- ItemBB030000 - Northern Pacific Engineering Drawing: Shop Plan - 4 Bridge Spans, Bridge 42 - 3rd Street, Tenino, Washington, undated
- ItemBB030720 - Northern Pacific Engineering Drawing: Precast Concrete Cap, Bridge 12 - Drainage Channel, Orillia, Washington, undated
- ItemBB030721 - Northern Pacific Engineering Drawing: Erection Details, Bridge 12 - Drainage Channel, Orillia, Washington, undated
- ItemBB030722 - Northern Pacific Engineering Drawing: Track Profile, Bridge 12 - Drainage Channel, Orillia, Washington, undated
- ItemBB030725 - Northern Pacific Engineering Drawing: Prestressed Concrete "T" Girder, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- ItemBB030726 - Northern Pacific Engineering Drawing: Prestressed Concrete "T" Girder, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- ItemBB030727 - Northern Pacific Engineering Drawing: Prestressed Concrete Cap, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- ItemBB030728 - Northern Pacific Engineering Drawing: Standard Plan - Abutment Erection, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- ItemBB030729 - Northern Pacific Engineering Drawing: Standard Plan - Bent Erection, Bridge 102 - Owl Creek, South of Longview Junction, Washington, undated
- 428 more...