(Fond du Lac) A $2.3-million-dollar project to improve over seven miles of Highway 175 in Fond du Lac County began this week. Improvements will be made to a stretch that extends from the south Fond du Lac County line in the Town of Byron to Highway 151 in the city of Fond du Lac. A full closure of Highway 175 will take place during the first portion of construction or through mid-September. Access will be maintained to businesses and property owners in the work zone. Traffic will be detoured using I-41, US 151, and State Highway 49. From mid-September to October, State Highway 175 will be open to traffic with lane closures and flagging operations. The project is slated to be completed in mid-October.