65 ILCS 5/9-2-10
At the time and place fixed in the specified notice for the public hearing, the board of local improvements shall meet and hear the representations of any person desiring to be heard on the subject of the necessity for the proposed improvement, the nature thereof, or the cost as estimated. In case any person appears to object to the proposed improvement or any of the elements thereof, the board shall adopt a new resolution abandoning the proposed scheme or adhering thereto, or changing, altering, or modifying the extent, nature, kind, character, and estimated cost, provided the change does not increase the estimated cost of the improvement to exceed 20% of the same, without a further public hearing thereon, as it considers most desirable. Thereupon, if the proposed improvement is not abandoned, the board shall have an ordinance prepared therefor, to be submitted to the corporate authorities. This ordinance shall prescribe the nature, character, locality, and description of the improvement and shall provide whether the improvement shall be made wholly or in part by special assessment or special taxation of contiguous property. This ordinance may provide that specifications for the proposed improvement be made part of the ordinance by reference to specifications previously adopted by ordinance by the municipality, or to specifications adopted or published by the State of Illinois or a political subdivision thereof, provided that a copy of the specifications so adopted by reference is on file in the office of the clerk of the municipality. If the improvement is to be paid in part only by special assessment or special taxation, the ordinance shall so state.
If property is to be taken or damaged for the improvement, the ordinance shall describe the property with reasonable certainty.
In cities having a population of 500,000 or over when a remonstrance petition is filed by the owners of a majority of the frontage on the line of the proposed improvement with the board of local improvements within 30 days after the public hearing thereon, the board shall thereupon stay all proceedings therein for one year from that date. This remonstrance petition shall contain the signatures of the owners or legal representatives, the description of the property owned or represented, and the number of feet so owned or represented and shall be verified by affidavit of one or more property owners fronting on the line of the proposed improvement, setting forth that the party making the affidavit is a property owner, fronting on the proposed improvement and that the parties who signed the petition are the owners or legal representatives of the property described therein.
65 ILCS 5/9-2-10