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
- 848 more...
- ItemBB015129 - Northern Pacific Engineering Drawing: East Bridge Bearing Layout, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015130 - Northern Pacific Engineering Drawing: Abutment 1 West Bridge, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015131 - Northern Pacific Engineering Drawing: Abutment 5 West Bridge, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015132 - Northern Pacific Engineering Drawing: Abutment 1 East Bridge, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015133 - Northern Pacific Engineering Drawing: Abutment 5 East Bridge, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015134 - Northern Pacific Engineering Drawing: Intermediate Piers, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015135 - Northern Pacific Engineering Drawing: Girder Framing Plan, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015136 - Northern Pacific Engineering Drawing: Girder Layout, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015137 - Northern Pacific Engineering Drawing: Girder Details, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- 6871 more...