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
- 993 more...
- ItemBB015274 - Northern Pacific Engineering Drawing: Shop Plan - Walk Plate, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015275 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015276 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015277 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015278 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015279 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Plate, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015280 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015281 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- ItemBB015282 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 66, South of Ritzville, Washington, undated
- 6726 more...