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
- 3337 more...
- ItemBB017923 - Northern Pacific Engineering Drawing: Railway Alignment/Grade, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017924 - Northern Pacific Engineering Drawing: Abutment Number 1, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017925 - Northern Pacific Engineering Drawing: Abutment Number 4, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017926 - Northern Pacific Engineering Drawing: Abutment 1 Reinforcement, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017927 - Northern Pacific Engineering Drawing: Abutment 4 Reinforcement, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017928 - Northern Pacific Engineering Drawing: Piers 2/3, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017929 - Northern Pacific Engineering Drawing: 100 Foot Span Through Plate Girder, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017930 - Northern Pacific Engineering Drawing: 80 Foot Span Through Plate Girder, Bridge 66, South of Ritzville, Washington, undated
- ItemBB017931 - Northern Pacific Engineering Drawing: 60 Foot Span Through Plate Girder, Bridge 66, South of Ritzville, Washington, undated
- 4382 more...