County Road 40 (100th St.), along the Martin County line southwest of Amboy, between County Road 40 (499th Ave.) and County Road 140, will be closed beginning Monday, June 17 while the existing culvert on Judicial Ditch 116 is replaced with a 10’x7’ concrete box culvert. Drivers should expect this portion of the road to be closed for approximately two weeks and are encouraged to find alternate routes.