This story is free to read. Snapshot: Tractor-trailer fire on I-75 0 Comments snapshot-tractor-trailer-fire-i-75 snapshot-tractor-trailer-fire-i-75 By Times Free Press Staff April 8, 2011 1 min read Flames rise from a semi-trailer truck on Interstate 75 about noon today in Brainerd. Chattanooga Times Free Press Staff Photo