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
- 7376 more...
- ItemBB034133 - Northern Pacific Engineering Drawing: Index of Sheets, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034134 - Northern Pacific Engineering Drawing: Plan and Elevation, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034135 - Northern Pacific Engineering Drawing: Construction Sequence, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034136 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034137 - Northern Pacific Engineering Drawing: Framing Plan and Floor System, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034138 - Northern Pacific Engineering Drawing: Floor Beams and Sway Frames, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034139 - Northern Pacific Engineering Drawing: Truss Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034140 - Northern Pacific Engineering Drawing: Truss Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB034141 - Northern Pacific Engineering Drawing: Bearing Details, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 343 more...