Duke Energy – Rio Pinar to Econlockhatchee 230 kV Line Rebuild

About the Project


Duke Energy Florida (DEF)


Orange County, FL


4 mi.


Conflict mitigation and utility verification for 230 kV transmission line rebuild


  • Utility Designation (QL-B)
  • Utility Location (QL-A)
  • Temporary Traffic Control (T.T.C.)

Duke Energy - Rio Pinar to Econlockhatchee 230 kV Line Rebuild

Duke Energy-Rio Pinar

As part of the Duke Energy Reliability Enhancement Project, Duke Energy Florida (DEF) identified and deemed it necessary to rebuild the existing 230 kV line as well as the Econlockhatchee Substation and Rio Pinar Substation to better serve its customers. This line rebuild of the four-mile transmission corridor would see all lattice towers replaced with steel monopoles (single pole).

For the purposes of design, field engineering, and conflict mitigation, the Subsurface Utilities Engineering (SUE) division performed, “Initial Discovery (Quality Level B),” in a 25’ radius around each of the 55 proposed pole locations. By utilizing electromagnetic pipe and cable locators as well as ground-penetrating radar, SSMC SUE technicians field marked subsurface utilities in conformance with ASCE C-1-38-02. Working closely with the Engineer for utility verification (Quality Level A) and field engineering, any proposed pole locations found to have potential conflicts were excavated, utilizing vacuum excavation in a 6’x6’x5’ cube to determine a “clear,” hole. To expedite field efforts on such projects, SSMC coordinates directly with Utility Asset Owners (UAOs) listed within Sunshine 811 submitted tickets as well as adhering to all Duke Energy Florida, OSHA, state, and local safety procedures. Additionally, all Temporary Traffic Control (T.T.C.) needs are met and provided in-house.


“I had the pleasure of working with a couple of your employees over the past couple weeks. James Murphy and Beau Boyles; very professional and “can do” attitudes. They worked well with the crew from PSI and the task was completed one day ahead of schedule with no underground utilities damaged.”

Byron Osborn

NBC Universal, Orlando

“On behalf of our entire Project-87 team I want Southeastern Surveying to know that Mike Vetter and Ed Wolfrey set the Live Structural Steel Surveying performance bar to a new pinnacle with their Project-87 performance.”

Sean A. Murray Sr.

The Walt Disney Company

“Southeastern Surveying has been nothing but a pleasure to work with. Ian O’Gorman has truly been a great and trustworthy professional getting the jobs done in a clean and effective manner. Thank you for all of your hard work and efforts.”

TJ Kelley

Quanta Telecom Services

“We would like to take a moment to express our appreciation to the employees that worked with the City of Paxton Utilities Department. During the time we had the privilege of working with them; they were very professional and went above and beyond our expectations.”

Hayward Thomas

Mayor of the Town of Paxton

“Your guys out there were great, very professional and hard working.”

Scott Shelton

Rayken, Inc.

“Thanks again for a great job. Please let your team know how grateful we are to your tireless diligence in preparing a living database of information.”

Lisa Henry

City of Orlando