NASHVILLE, Tenn. - Heavy rains from Hurricane Ida have forced Bonnaroo Music & Arts Festival in Tennessee to cancel as organizers say the waterlogged festival grounds are unsafe for driving or camping.The annual festival was scheduled to start Thursday on the site of a former farm in Manchester, about an hour southeast of Nashville.On social media Tuesday, the festival said that tremendous rainfall over the last 24 hours, remnants of Ida's powerful winds and rain, have saturated the paths and camping areas.FILE - Fans attend the Bonnaroo On The Farm Concert Series featuring Jon Pardi with special guest Jameson Rodgers on May 29, 2021 in Manchester, Tenn. (Jason Kempin/Getty Images)RELATED: Ida aftermath: Louisiana fire crew pulls pony from.