A culvert replacement project on Iowa 14 north of Grundy Center requires closing the roadway to traffic between Iowa 175 and U.S. 20, from 8 a.m. Monday, August 26, until Friday, October 18, weather permitting, according to the Iowa Department of Transportation’s Marshalltown construction office. During this closure, traffic will be detoured around the work zone (see map) using Grundy County roads T-37 and D-35.