This story is free to read. Traffic backed up on I-24 at Missionary Ridge because of debris in road traffic-backed-i-24-missionary-ridge-because-debri traffic-backed-i-24-missionary-ridge-because-debri By Staff Report June 12, 2013 1 min read Traffic tile Traffic on northbound I-24 at Missionary Ridge is backed up because of debris, according to TDOT. The roadway is partially blocked and is expected to be cleared by 8:30 a.m.