mixed with small woodlands. The highway passes Ridgeway and Barneveld. Access to Ridgeway is by an interchange and a surface intersection with a short business route on CTH-HHH. The interchange was previously an intersection; however, it was announced in 2011 that the first intersection would be closed, and an exit would be constructed, due to the numerous fatal accidents that happen at the intersection each year. The new interchange on the western end of town opened in late 2018. Access to Barneveld is at an interchange with CTH-ID and an at-grade intersection with CTH-K. CTH-ID parallels US 18/US 151 for the entire stretch between Barneveld and Mount Horeb. A section of freeway begins at WIS 78 and ends at the other end of CTH-ID as the highway bypasses Mount Horeb just to the south of the city's passing residential subdivisions. A mix of grade separation and level intersections cross the winding highway as it continues eastward until the interchange with CTH-MV (Verona Avenue) begins a section of freeway that bypasses Verona to the south. This section provides access to four interchanges including the two endpoints of CTH-MV. The freeway continues into Fitchburg and provides access to two interchanges at CTH-PD (McKee Road) and Williamsburg Way. The freeway then ends. The road continues as an urban multilane highway known as Verona Road as it enters Madison. Verona Road passes through a residential and commercial area on the Southwest Side of Madison. US 18 and US 151 merge east on the West Beltline Highway—joining US 12 and US 14. Madison metropolitan area The four US Highways run concurrently for about to Park Street. At this interchange, US 14 turns south off the beltline towards Oregon, and US 151 turns north and into central Madison; US 151 passes Monona Bay to the west along South Park Street. US 151 turns northeast onto West Washington Avenue for about then follows Proudfit Street and North Shore Drive—paralleling the Monona Bay shore—and turns north onto John Nolen Drive. The street passes under the Monona Terrace Convention Center as it passes to the south and east of downtown Madison. US 151 turns northwest onto South Blair Street for three city blocks to East Washington Avenue—where it turns northeast and follows East Washington Avenue, bisecting the Madison Isthmus, and leading out of the city to the east. The western terminus of WIS 30 meets US 151 about northeast