The Badger-Coulee transmission project, which went into service at the end of 2018, connects to the Hampton-Rochester-La Crosse line at the substation north of La Crosse. SMMPA and other CapX2020 participants with ownership in the Hampton-Rochester-La Crosse line were able to invest in this project.

The Agency invested $35 million in a 6.5% share of the project through SMMPA Wisconsin, LLC, a subsidiary formed to own transmission in Wisconsin. SMMPA's partners in the project are Xcel Energy, Dairyland Power Cooperative, WPPI Energy, and American Transmission Company, a Wisconsin-based transmission-only utility. 

SMMPA's investment in this project helps offset costs allocated to the Agency from other regional transmission projects.