Project Description
ATC is replacing 2.2 miles of an aging 138-kilovolt underground power line between the Lincoln Substation (north of the Kinnickinnic River) and West Howard Ave. This line is a critical part of the electric grid in southeastern Wisconsin. As part of the replacement of the existing line, the project will install new underground concrete-encased ducts that will house the new line.
The project also includes work at the Lincoln Substation. The substation supplies the surrounding area with a stable, reliable supply of electricity.
Project work will begin in mid-August 2025 and is expected to continue through 2027.
Project Need
The current underground power line is nearing the end of its useful life and, as a result, it is being replaced. Its replacement is part of ATC’s ongoing commitment to serving the Milwaukee area by reliably supplying energy to the region, ensuring the electric grid continues to maintain reliability and providing access to energy.
Project Schedule

Work will be completed in segments along South 43rd St.
Anticipated project completion Winter 2027
No interruption to electrical service is anticipated
Project schedule subject to change