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
- 1896 more...
- ItemBB016335 - Northern Pacific Engineering Drawing: Girders/Lateral/Plate, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016336 - Northern Pacific Engineering Drawing: Girder Frame/Bracing, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016337 - Northern Pacific Engineering Drawing: Columns, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016338 - Northern Pacific Engineering Drawing: Sway Bracing, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016339 - Northern Pacific Engineering Drawing: Longitudinal Bracing, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016340 - Northern Pacific Engineering Drawing: Guard Rails, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016341 - Northern Pacific Engineering Drawing: Erection Diagram, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016342 - Northern Pacific Engineering Drawing: General Plan, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016343 - Northern Pacific Engineering Drawing: General Plan/Elevation, Bridge 3 - Snake River, East of Ainsworth Junction, Washington, undated
- 5823 more...