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
- 1888 more...
- 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
- ItemBB016330 - Northern Pacific Engineering Drawing: Girders, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016331 - Northern Pacific Engineering Drawing: Top Lateral Bracing, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016332 - Northern Pacific Engineering Drawing: Girders/Frames, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016333 - Northern Pacific Engineering Drawing: Casting/Bed Plates, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016334 - Northern Pacific Engineering Drawing: Girders/Cross Frame, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- ItemBB016335 - Northern Pacific Engineering Drawing: Girders/Lateral/Plate, Bridge 4 - Walla Walla River, Zangar Junction, Washington, undated
- 5831 more...