By Emily Pofahl
Publication Date: 2026-04-10 03:46:00
It’s been about one month since Mount Pleasant and Sturtevant residents started noticing a strange, persistent humming noise emanating from Microsoft’s Mount Pleasant artificial intelligence data center campus by 90th Street and County Road KR. “I can hear it inside my house, and that’s what concerns me,” said Donald Briggs, who lives near the data center.Microsoft broke ground on the campus in 2023, and construction will continue in phases through at least 2028, but the first data center meant to help train new AI models will be fully operational later this year.It will be the first out of a series of mega-data centers focused on supporting artificial intelligence, going up around southeast Wisconsin to begin operations. More data centers are still under construction or in planning phases in Port Washington, Beaver Dam and Kenosha.On Thursday, neighbors near Mount Pleasant’s campus brought their complaints directly to Microsoft during a Q&A session at the village hall….
