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
- 961 more...
- ItemBB015242 - Northern Pacific Engineering Drawing: Shop Plan - Girder, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015243 - Northern Pacific Engineering Drawing: Shop Plan - Walk Plate, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015244 - Northern Pacific Engineering Drawing: Shop Plan - Walk Plate, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015245 - Northern Pacific Engineering Drawing: Shop Plan - Walk Plate, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015246 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beams, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015247 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beams, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015248 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beams, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015249 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beams, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- ItemBB015250 - Northern Pacific Engineering Drawing: Shop Plan - Masonry Plan, Bridge 3.1 - Union Pacific Railroad and Highway, West of Empire, Washington, undated
- 6758 more...