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
- 4493 more...
- ItemBB019173 - Northern Pacific Engineering Drawing: Renew Deck, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019174 - Northern Pacific Engineering Drawing: Erection Diagram, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019175 - Northern Pacific Engineering Drawing: 150 Foot Through Truss Spacing, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019176 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019177 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019178 - Northern Pacific Engineering Drawing: 150 Foot Through Truss Spacing, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019179 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019180 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- ItemBB019181 - Northern Pacific Engineering Drawing: Shop Plan - Through Pin, Bridge 22.1 - Nisqually River, South of Roy, Washington, undated
- 3226 more...