Important Traffic Alert for Sioux Falls Drivers Using Marion Road. Beginning Monday, September 29, 2025, Marion Road will be temporarily closed between Maple Street and 60th Street North for essential roadway improvements. Marion Road In Sioux Falls Closing for Construction-Google Maps Marion Road In Sioux Falls Closing for Construction-Google Maps loading...An estimated 10,700 vehicles travel along North Marion Road in Sioux Falls every day. However, Marion Road will remain accessible when crews are not actively working, providing some relief during off-hours. Motorists should:Reduce speeds in and around the work areaAllow additional travel timeConsider using alternate routes during peak construction hoursStay alert for construction workers and equipment