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
- 839 more...
- ItemBB015115 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 5 - Highway, South of Zangar Junction, Washington, 1965
- ItemBB015116 - Northern Pacific Engineering Drawing: Shop Plan - Girder Span, Bridge 5 - Highway, South of Zangar Junction, Washington, undated
- ItemBB015117 - Northern Pacific Engineering Drawing: Steel Repair Beam Spans, Bridge 5 - Highway, South of Zangar Junction, Washington, undated
- ItemBB015123 - Northern Pacific Engineering Drawing: Layout, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, 1969
- ItemBB015124 - Northern Pacific Engineering Drawing: Footing Layout, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015125 - Northern Pacific Engineering Drawing: Shop Plan - General Revision, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015126 - Northern Pacific Engineering Drawing: Shop Plan - General Revision, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015127 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015128 - Northern Pacific Engineering Drawing: West Bridge Bearing Layout, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- 6880 more...