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
- 1882 more...
- ItemBB016321 - Northern Pacific Engineering Drawing: Details of Tower Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016322 - Northern Pacific Engineering Drawing: Detail Plate Girder Abutment Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016323 - Northern Pacific Engineering Drawing: Detail Plate Girder Open Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016324 - Northern Pacific Engineering Drawing: Detail Plate Girder Open Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016325 - Northern Pacific Engineering Drawing: Detail of 70 Foot Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016326 - Northern Pacific Engineering Drawing: Detail of 70 Foot Span, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016327 - Northern Pacific Engineering Drawing: Floor Plan/Ground Angle, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016328 - Northern Pacific Engineering Drawing: Shoes/Rocker/Bed etc., Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016329 - Northern Pacific Engineering Drawing: End Section Girder, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- 5837 more...