MARSHFIELD, WI (WSAU) -  One of the two new roundabout intersections on Marshfield’s south side is now open to traffic. The intersection of Highway 10, Highway 80, and Klondike Road opened to traffic yesterday. This is the intersection where the new Highway 10 freeway connects to old 10 at the edge of town. The detour signs for highway 80 should be removed by sometime today. There is still one unfinished roundabout intersection immediately north of the completed one where the Holiday convenience store is located. This intersection is expected to be completed by the end of November.