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
- 4667 more...
- ItemBB019408 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019409 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019410 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019411 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019412 - Northern Pacific Engineering Drawing: Shop Plan - Truss Span, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019413 - Northern Pacific Engineering Drawing: Detail of Span Centerline Bearings, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019414 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019415 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019416 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- 3052 more...