Niles AreaTransmission Improvements Project: Niles South
Indiana Michigan Power representatives plan to upgrade the power grid in the Niles area by making improvements to the transmission infrastructure.
The Niles Area Transmission Improvements Project includes power line and substation improvements in several components. The Niles South component, located in St. Joseph County, Indiana, involves:
- Building the 138-kilovolt (kV) Boundary Substation
- Building approximately 1 mile of 138-kV transmission line
- Building a half mile of 69-kV transmission line
The project strengthens the local transmission grid and improves electric reliability for area customers. The new substation provides increased capacity to serve area customers and reduce the likelihood of service interruptions.
Project Updates
Early 2025: Crews began construction of Boundary Substation in November and should finish by fall 2025, depending on weather and other factors. Crews plan to begin clearing vegetation along the transmission line routes in January with construction on the transmission lines beginning this summer, depending on weather and other factors.
O.R. Colan (ORC) continues to serve as I&M’s right-of-way representative on this project.
Project Releases
Timeline
Structures
Plans call for the new line to be built using mostly double circuit, steel single poles.
Typical Structure Height: Approximately 100-115 feet
Typical Right-of-Way Width: Approximately
60-100 feet
*Exact structure, height, and right-of-way requirements may vary.
Resources
Property Easements Project Fact Sheet Project Map Access Roads Field ActivitiesIndiana Michigan Power serves 575,000 customers in Indiana and Michigan.
I&M Outreach Team
833-441-2260
IM_Outreach@aep.com
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