 Thunder Run operated until the end of the 2009 season on November 1 . Amid a corporate bankruptcy , on February 4 , 2010 , Six Flags announced the park would cease operations immediately due to the rejection of an amended lease by the Kentucky State Fair Board . Many attempts were made to reopen the park under new operators . Eventually , on June 27 , 2013 , a group of investors led by Ed Hart negotiated an agreement to reopen the park . The group would spend $ 36 million to reopen the park in May 2014 . Thunder Run would be part of the opening day lineup of attractions . Rocky Mountain Construction was hired to refurbish the ride , resulting in the existing wooden track to be replaced . On October 10 , 2013 , Kentucky Kingdom invited members of the media and amusement industry to ride the refurbished Thunder Run . The ride reopened to the public on May 24 , 2014 . 
