High Quality Content by WIKIPEDIA articles! Iowa Highway 1 (Iowa 1 or Highway 1) is a state highway in the U.S. state of Iowa that extends from Keosauqua to Anamosa. Traveling 120 miles (190 km), mainly through rich farmland and small communities, Iowa 1 provides and important link to Iowa City and the University of Iowa as it passes through campus. Portions of the route today date back to the late-1830s, when Martin Van Buren was president, making Iowa Highway 1 one of the oldest routes in the state, pre-dating the current primary highway system by nearly eighty years. In the Iowa flood of 2008, Iowa 1 was seriously damaged by the Cedar River, closing the highway for seven weeks.