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
- 1769 more...
- ItemBB016208 - Northern Pacific Engineering Drawing: Cast Steel Base, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016209 - Northern Pacific Engineering Drawing: Change in Auxiliary Counterweight, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016210 - Northern Pacific Engineering Drawing: Lever for Signal Operations, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016211 - Northern Pacific Engineering Drawing: Simplified Control Schematic, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016212 - Northern Pacific Engineering Drawing: Matchmarking Diagram, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016213 - Northern Pacific Engineering Drawing: Location Pinion/Bearing, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016214 - Northern Pacific Engineering Drawing: Revision of Bracket - Interference of Beam, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016215 - Northern Pacific Engineering Drawing: Counterweight, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016216 - Northern Pacific Engineering Drawing: Details of Main Counterweight, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- 5950 more...