Black Diamond - StillwellTransmission Line Rebuild Project

AEP Ohio representatives plan power grid upgrades to improve electric reliability for customers in Holmes County.

The Black Diamond-Stillwell Transmission Line Project involves:

• Rebuilding about 17 miles of 69-kilovolt power line in Holmes County.
• Some segments of the power line are under review as route alternatives. See the enclosed map for more information on the location of the proposed study segments.
• Building Black Diamond Substation off County Road 103 in Mechanic Township, Holmes County.
• Building Fort Fizzle Substation off SR-520 in Richland Township, Holmes County.
• Building Schlegel Substation off SR-754 in Ripley Township, Holmes County.
• Expanding Millersburg Substation off Deetz Street in Millersburg.
• Retiring South Millersburg Substation off US-62 in Mechanic Township, Holmes County.

Crews plan to rebuild the power line in or near it's existing right-of-way corridor and may need to supplement or acquire new easements to ensure the safe construction, operation and maintenance of the line. 

Early 2025: Following a project announcement in summer 2022, project team members are actively reviewing community feedback and studying potential routes for the 17-mile power line segment. A final line route has not been determined and the project schedule is currently under evaluation.

We are committed to keeping you informed throughout this process and plan to update you with additional project details and a finalized schedule as soon as more information is available.