All southbound traffic is being diverted to Monticello Road. TOLONO — Southbound traffic is being diverted on Interstate 57 as a result of a motor vehicle crash. Master Sergeant William Kroncke of the Illinois State Police said a crash took place in the southbound lanes of Interstate 57 at mile marker 226, west of Tolono at about noon Sunday. All southbound traffic is being diverted to Monticello Road. read more