delivered the opinion of .the court.
The city of Elgin duly adopted an ordinance for the improvement of Walnut avenue in said city. A contract therefor was duly let to Arwin E. Price for $41,163.07. The contractor proceeded with the work and claimed that he had completed it according to contract. The contract provided that it should be paid for by ten annual assessments, and the proceeding to levy assessments was conducted in the County Court of Kane county. The board of local improvements of said city refused to certify to said court the completion of said work. Price sued the city to recover the balance remaining due him. The Supreme Court held that that was not his remedy. Price v. City of Elgin, 257 Ill. 63. Thereupon he began this suit by filing, in the Circuit Court of Kane county, a petition against the said board of local improvements and the respective members thereof, for a mandamus, to compel said board to certify in writing to the County Court of Kane county the cost of the work and the amount estimated to'be required to pay accruing interest on bonds and vouchers, issued to anticipate the collection of said assessment, and to take the steps and proceedings prescribed by section 84 of the Local Improvement Act. (J. & A. fí 1477.) In said petition, Price set forth fully the ordinance and the contract, and alleged that he had completed the work and that the board refused to so certify. Eespondents filed an *631answer in which they alleged that in various respects the work done by Price did not comply with the contract ; and they denied that they were required to make any certificate until the work had been completed to their satisfaction, and they denied the jurisdiction of the court. Petitioner demurred to said answer and the demurrer was sustained. Eespondents elected to abide by their demurrer. There was a final judgment, that a peremptory writ of mandamus issue to said board, commanding it to forthwith certify in writing the cost of the improvement, and the amount estimated by the board to be required to pay accruing interest on bonds and vouchers and to state in said certificate whether or not said improvement conformed substantially to the requirements of the original ordinance for the construction of the improvement, and to make an application to said court to consider and determine whether or not the facts stated in said certificate are true, and to take the steps and proceedings required by section 84 of the Local Improvement Act. This is an appeal by the respondents from that judgment.
The original act concerning local improvements, in force July 1, 1897 by section 83 thereof, required the work to be done to the satisfaction of the Board of Local'Improvements, and section 84 contained nothing to the contrary. Section 84 was amended in 1903. As amended, it required the Board of Local Improvements within thirty days after the final completion and acceptance of the work to cause the cost thereof to be certified in writing to the court in which said assessment was confirmed, together with the amount estimated to be required to pay accruing interest on bonds or vouchers issued to anticipate collection, and it provided what should then be done in said proceeding, and it provided that if the assessment had been divided into instalments “it shall also be the duty of the board of local improvements to state in said certificate whether or not the said improvement conforms sub*632stantially to the requirements of the original ordinance for the construction of the improvement, and to make application to said court to consider and determine whether or not the facts stated in said certificate are true.” The section then provided for an order fixing the time and place for hearing the matter and for notice thereof, and for a hearing and for a determination of the matter in a summary manner, which order, it provided, should be conclusive upon the parties, and that no appeal or writ of error should be allowed therefrom. And it provided, if the court found that the improvement had not been completed in substantial accord with the ordinance, how and in what manner it should be completed, and what procedure should thereafter be followed. The language of the amended section 84 is not entirely harmonious, and there are places in it which imply that the certificate filed by the board will be that the contract has been complied with. Nevertheless, when the whole section is considered together, we conclude that we are not at liberty to hold that the words “whether or not,” in the above extract from said section, were passed by the Legislature through inadvertance, as counsel for appellants insist is the case, but rather, that we must give them due effect. As this section is not in harmony with section 83 (J. & A. 1476), we must hold that section 84 as amended repeals so much of section 83 as is in conflict with the new section 84. Lang v. Friesenecker, 213 Ill. 598. If the provisions of section 83 meant that the Board of Local Improvements were the final arbiters upon the question whether the work had been performed in substantial compliance with the contract, and the contractor had no redress against their adverse decision, unless they were guilty of fraud, that provision must be considered as abrogated by the amended section 84; and we hold it to be the meaning of that section, when fully considered—and notwithstanding some contradictory language—that if the *633contractor has finished the work, and the hoard considers that the work has not been done in substantial compliance with the contract, it is then required to certify that fact to the court where the assessment was made, and that court has complete jurisdiction to determine whether the contract has been fully performed, and, if not, to determine in what particulars it has not been fully performed, and to set in motion the machinery by which the Board of Local Improvements shall cause the work to be completed. In this case, the assessment had been made and had been divided into instalments and the proceeding had been conducted in the County Court of Kane county, and it therefore had sole jurisdiction to determine whether the work had been completed in substantial compliance with the contract, and the Circuit Court in this proceeding could not determine that question because jurisdiction over that subject-matter had already been acquired by the County Court. It could not well be that the County Court could have jurisdiction to finally decide the question, and at the same time the Circuit Court could try and decide the same question, in a proceeding where an appeal would lie from its decision. We are of opinion that the Circuit Court properly refused to try the question whether the contract had been complied with, and properly directed the Board of Local Improvements to file a certificate in the County Court, which will bring that question before that court, and it can direct further steps if the work has not been fully completed pursuant to contract. The order appealed from is vague, in that it does not expressly state in what court a certificate is to be filed. But when the allegations of the petition and the statute are considered together, it is plain that it means the County Court of Kane county.
The judgment is affirmed.
Affirmed.