The Dennison – Yager Transmission Line involves rebuilding approximately 7 miles of 69-kV line. The line will be upgraded with steel poles and built to 138-kV standards, although it will continue to be operated at 69-kV. The line connects the Dennison Substation in Harrison County to a new Yager Substation, which is currently under construction in Tuscarawas County.

These improvements are one part of the multi-phase Eastern Ohio Tri-County Improvements, an approximately $66 million investment designed to create a 138-kV loop in eastern Ohio that will reduce electric outages in the region and provide the capacity for future business expansion. The multi-phase project includes rebuilding approximately 20-miles of transmission line, adding 5-miles of new line and constructing a new Yager Substation.

The Dennison – Yager transmission line is an approximately $15 million investment. It is necessary to ensure a reliable and adequate supply of energy is available for the area, which has seen a dramatic increase in economic development related to the shale gas industry.

To request an electronic or paper copy of the Application, please click the Contact Us to make your request.

Project Updates

Early 2020: Crews are constructing the power line following an adjustment submitted and approved by the Ohio Power Siting Board. Construction is anticipated to be completed in summer 2021.

Project Releases

Dennison – Yager Notice of Project Open House Public Notice - April 9, 2016 (PDF)

Eastern Ohio Tri-County Improvements News Release - April 7, 2016 (PDF)


Project Timeline



AEP Ohio will build new steel, single pole structures that will be between 80 and 100-feet tall. The structures will be placed in the center of an approximate 100-foot wide right-of-way corridor.

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


Project Fact Sheet Access Roads Field Activities

AEP Ohio provides electricity to nearly 1.5 million customers.

Maggie Beggs

Project Outreach Specialist

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