Hillsboro - LebanonTransmission Line Rebuild Project

AEP Ohio plans to upgrade the local power grid in Highland, Clinton and Warren counties.

The project involves:

  • Replacing two 17-mile long paralleling power lines and combining them into a single line located within the existing right-of-way between Hillsboro and Blanchester
  • Rebuilding an approximate 19-mile powerline between Blanchester and Lebanon
  • Upgrading the Middleboro Substation near Blanchester

The improvements upgrade transmission structures that are more than 70 years old. This helps reduce the likelihood of power outages and speed recovery of service when outages occur.

The company plans to rebuild the transmission lines in its existing right-of-way. However, it might need to supplement current easements to ensure the safe construction, operation and maintenance of the transmission lines.

Project Updates

Late 2019: Right-of-way agents are working with landowners along the project route to discuss field activities, easement acquisition and construction. Following a line adjustment, a letter of notification was filed with the Ohio Power Siting Board on November 8, 2019.

Project Releases

Clinton County (Duke) - Hillsboro 138-kV Line Project Letter of Notification - January 3, 2020 (PDF)

Clinton County (Duke) - Hillsboro 138-kV Line Project Public Notice (PDF)

Hutchings - Middleboro - Clinton 138-kV Transmission Line Project Letter of Notification - November 8, 2019 (PDF)

Hillsboro - Hutchings 138-kV Transmission Line Project Public Notice (PDF)


Project Timeline



Installing steel, single-pole structures along the section where the two existing lines are combined into a single line between Hillsboro and Blanchester

Structure Height: Approximately 120 feet
Right-of-Way Width: Approximately 200 feet

Replacing wood for steel H-frame structures for the 19-mile power line between Blanchester and Lebanon

Structure Height: Approximately 70 feet
Right-of-Way Width: Approximately 100 feet

* Exact structure, height and right-of-way may vary


AEP Right-of-Way Process Project Fact Sheet Access Roads Field Activities

AEP Ohio provides electricity to nearly 1.5 million customers.


Joe Demaree

Project Outreach Specialist

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