High Quality Content by WIKIPEDIA articles! In the U.S. state of Wisconsin, U.S. Route 14 (normally called U.S. Highway 14, Highway 14 or US 14) runs northwest-southeast across the western to southwest portions of the state. It links La Crosse and the southwestern portion of the state with Madison and Janesville. US 14 is mostly two-lane surface road with the exception of a few multilane urban arterials and a freeway section around Madison that it mostly shares with US 12.