605 ILCS 5/6-201.22
Whenever the highway commissioner wishes to permanently post a road at a reduced weight limit, he or she shall fix a time and place to examine the route of the township or district road, and hear reasons for or against permanently posting a road at a reduced weight limit.
The highway commissioner shall give written notice at least 10 days prior to the time of examination and hearing to the county superintendent of highways. He or she shall also provide notice by publication in at least one newspaper published in the township or district. In the absence of a newspaper published in the township or district, notice by publication shall be provided in at least one newspaper of general circulation in the township or district. In the absence of a generally circulated newspaper in the township or district, notice by publication shall be made by posting notices in 5 of the most public places in the district in the vicinity of the road to be permanently posted at a reduced weight limit.
The highway commissioner may, by written notice to the county superintendent of highways, by public announcement, and by posting notice at the time and place named for the first hearing, adjourn a hearing from time to time, but not for a longer period than 10 days. At the hearing, or the adjourned hearing, the commissioner shall decide and publicly announce whether he or she will permanently post a road at a reduced weight limit. The highway commissioner shall issue a signed memorandum explaining the decision to permanently post a road at a reduced weight limit, and address any concerns raised at the public hearing. The signed memorandum shall be filed within 5 days after the hearing in the office of the district clerk. The highway commissioner shall also send a copy of the signed memorandum to the county superintendent of highways. The county superintendent of highways may approve the decision of the highway commissioner by signing the memorandum and filing it in the office of the district clerk. Upon the approval of the decision by the county superintendent of highways and filing of the memorandum with the office of the district clerk, the road may be posted at a reduced weight limit by the highway commissioner.
605 ILCS 5/6-201.22