The opening of Dubuque’s Southwest Arterial has been pushed back. The four-lane highway connecting U.S. Highway 20 at Seippel Road to U.S. Highway 61/151 near Tamarack Business Park will open on September 1st. Assistant City Engineer Bob Schiesl said that he and city staff and officials with the Iowa Department of Transportation met with contractors on site Wednesday and decided to adjust the opening to September 1st. The opening had been expected during the first week of August, but Schiesl said work remains on the roadway’s middle interchange, located between North Cascade and English Mill roads. Construction on the $160 million project began in September 2016.















