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South Caldwell-Macksburg 138kV Transmission Line Project

The proposed South Caldwell-Macksburg transmission line is part of the overall Marietta Area Improvements Project. The 23-kilovolt (kV) infrastructure has reached an age where it is in need of rebuild and redesign to improve reliability for the customers across the region. Bringing additional power sources into the region will improve the electric service reliability.

The South Caldwell-Macksburg transmission line is a 138-kV transmission line that connects South Caldwell Substation -- passing through South Olive Substation, in Noble County -- to Macksburg Substation in Washington County. This project will improve service for customers, decrease power interruptions and speed recovery of service when outages occur.

The South Caldwell-Macksburg line will be approximately eight miles long, depending on the route selected. The line will likely run through Olive, Jackson and Jefferson townships in Noble County with a short section in Aurelius Township in Washington County.

AEP Ohio projects South Caldwell-Macksburg, an approximate $15 million investment, will contribute approximately $660,000 in property taxes annually to the community.

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


* The accompanying map depicts the project area. It should be noted that the map contained on this site is for information purposes only. AEP reserves the right to alter, change, or amend the map at any time without notice and AEP provides no warranty about the accuracy of content. Keep this in mind when reviewing this map. However, AEP will make all attempts to keep this map as accurate as possible. If you have any questions about the accuracy of the current map please Contact Us.