A massive data center development in the Midwest has officially broken ground just before the end of the year, according to multiple sources.
Construction crews officially broke ground on a $15 billion data center campus in Port Washington, Wisconsin, according to a Vantage Data Centers post on X. The project, dubbed Lighthouse, forms part of the broader $500 billion Stargate initiative, a partnership with OpenAI, Oracle and Vantage Data Centers.
This week we hosted a groundbreaking ceremony in Port Washington, Wisconsin, for our future Lighthouse campus.
— Vantage Data Centers (@VantageDC) December 18, 2025
Fueled by a $15B investment, Lighthouse is part of @Oracle's and @OpenAI's Stargate expansion and marks a major step forward for digital infrastructure and economic… pic.twitter.com/rrqgQnG6zp
Contractors on the $8 billion first phase include Baltimore-based Whiting-Turner Contracting , Des Moines, Iowa-based Weitz Construction, a joint venture of New York City-based Turner Construction and St. Louis-based McCarthy Building Cos. and Brownsville, Wisconsin-based Michels, reports InfraUS.
The campus, spread across 672 acres, will feature four state-of-the-art data centers with computing capacity of nearly 1 gigawatt, according to a Weitz blog post on the groundbreaking. Work on the overall project also features several infrastructure upgrades to the region. Those additions include about $175 million in local water and power facilities, as well as improvements to wastewater capacity and sewer lines.
The construction firms expect to deliver the project in 2028.
