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
- 3785 more...
- ItemBB018388 - Northern Pacific Engineering Drawing: Shop Plan - Handrail, etc., Bridge 23.47 - Underpass (I - 5), South of Ketron, Washington, undated
- ItemBB018389 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 23.47 - Underpass (I - 5), South of Ketron, Washington, undated
- ItemBB018390 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 23.47 - Underpass (I - 5), South of Ketron, Washington, undated
- ItemBB018391 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 23.47 - Underpass (I - 5), South of Ketron, Washington, undated
- ItemBB018414 - Northern Pacific Engineering Drawing: Proposed Bridge, Bridge 119 - Lewis River, South of Woodland, Washington, 1903
- ItemBB018415 - Northern Pacific Engineering Drawing: Shims in Abutment, Bridge 119 - Lewis River, South of Woodland, Washington, undated
- ItemBB018416 - Northern Pacific Engineering Drawing: Detail of South Abutment, Bridge 119 - Lewis River, South of Woodland, Washington, undated
- ItemBB018417 - Northern Pacific Engineering Drawing: Detail of North Abutment, Bridge 119 - Lewis River, South of Woodland, Washington, undated
- ItemBB018418 - Northern Pacific Engineering Drawing: Detail of Piers, Bridge 119 - Lewis River, South of Woodland, Washington, undated
- 3934 more...