SIOUX FALLS, S.D. (KELO) -- A pole crashed onto Interstate 229 and closed the northbound lanes of Interstate 229 at the Benson Road exit Thursday afternoon in Sioux Falls.  School voucher bill introduced by House, Senate leaders Photos show a light pole that struck a van and the same pole stretches across the two northbound lanes of Interstate 229.  Crews are on scene and traffic is being diverted at the Benson Road exit.  Sioux Falls Police are asking for people to avoid the area at the time. This is a developing story.