After the organization of any drainage district under this chapter, and after the confirmation of the assessment as in this chapter provided, and after laying out a system of main drains for said drainage district, the said commissioners shall advertise for bids for the construction of said ditches by publishing a notice for three weeks in some newspaper in the county in which such district is organized, stating the time when and place where they will receive bids for the construction of such work. The time fixed for receiving and opening said bids shall not be less than twenty-two days from the time of the first publication. Said notice shall specify the kind and nature of the work to be done, the amount thereof as estimated by the engineer, and in what manner payment thereof will be made. They shall meet at the time and place designated in said notice and open said bids, and said contracts shall be let to the lowest responsible bidder. The said commissioners shall have the right to reject any and all bids if they deem that the same are too high, and may adjourn said letting to a future time and continue said advertisement until that time.

The commissioners shall take and file a certificate of publication of such notice with the clerk; and upon the acceptance of any bid for the construction of any work, they shall require said bidder to enter into contract with them for the faithful performance of said work according to the plans, specifications, profile, and estimates of the engineer, and require said contractor to enter into bonds for the faithful performance of said work within the time and in the manner specified in said contract.