Traffic on Davenport's East River Drive is temporarily detoured as Langman Construction Inc., Rock Island, executes a $237,914 contract to remove two medians with trees and flowers that were installed in 2010 between Iowa and Perry streets. A total of 12 medians were built in the middle of East and West River Drive under a $1.4 million initiative that were paid for with city and Iowa Department of Transportation funds, according to a news release from the city.