August 17, 2020, with the completion of the Southwest Arterial. A new Mississippi River crossing, the Dale Gardner Veterans Memorial Bridge, opened on November 17, 2017. Major intersections See also Northwest Arterial References External links Iowa 52 Transportation in Dubuque, Iowa 052 Transportation in Jackson County, Iowa Transportation in Dubuque County, Iowa Transportation in Clayton County, Iowa Transportation in Allamakee County, Iowa Transportation in Winneshiek County, Iowa