PDC provided surveying, aerial mapping, and right-of-way engineering services for this project. The project was 12-mile 120” diameter bored tunnel with a 108” dia pipeline.  The project included a hydroelectric generating station, surge facility, pump station, and two portals, four vertical shafts, and access roads.




  • Research & Title reports
  • 1st order GPS control network and ROS
  • 920 AC aerial topographic mapping
  • Aerial ground control surveys
  • Landnet retracement surveys
  • Right-of-way/appraisal maps
  • Right-of-way monumentation
  • Right-of-way record of survey
  • GIS data conversion

Contact Us:

Phone:  619.235.6471