inaccuracies. Between 1980 and 1990, of US 18/US 151 was upgraded to expressway standards, with the section around Verona being the final piece to be completed in 1995. US 12/US 18 was upgraded to expressway standards between I-39/I-90 to North Star Road, west of Cambridge. The remainder wasn't expanded, but straightened out to eliminate sharp curves. In 2019, as part of the construction to complete the Waukesha Bypass, US 18 has been rerouted as Temporary US 18 from WIS 83 in Wales, north along WIS 83 to I-94 and east along I-94 to exit 297 at Blue Mound Road where it rejoins the previous route. That same year, two new interchanges opened in Fitchburg, replacing at-grade intersections with McKee Road (CTH PD) and Williamsburg Way. Major intersections See also References External links Waukesha Bypass Project Information Wisconsin 18 Transportation in Crawford County, Wisconsin Transportation in Grant County, Wisconsin Transportation in Iowa County, Wisconsin Transportation in Dane County, Wisconsin Transportation in Jefferson County, Wisconsin Transportation in Waukesha County, Wisconsin Transportation in Milwaukee County, Wisconsin