1. The county commission for and on behalf of a drainage district shall have full power and authority to build, construct, excavate and complete all or any works and improvements which may be needed to complete the improvements located, described and set forth in the duly confirmed report of the viewers and engineer.

2. To accomplish that end the said county commission is hereby authorized and empowered to employ men and teams and to rent or purchase machinery, employ men to operate same and directly have charge of and construct the works and improvements, or by the use of other or more efficient means than provided for in the plans adopted.

3. They may, in their discretion, let the contract for such works and improvements either as a whole or in sections. The county commission shall fix the time and place of letting contracts for the construction of the improvements, and cause notice thereof, containing a description of the work to be let, to be given by the clerk of the county commission, by publication in three consecutive issues of some weekly newspaper of general circulation, published in the county, and by at least one insertion in some suitable contractor’s or trade journal, the last insertion to be at least ten days before the day of letting.