§297.  Construction of works of public improvement

The board may make or construct any of the works of public improvement in the district and anything in connection therewith that may be necessary or useful for the business of the board; it may purchase machinery or materials and equipment for performing such work and supervise the making of the same, or make and construct such works through contracts with others and generally, it may do all other acts necessary or proper to carry out the powers vested with regard to such works of public improvements.