The other provisions of law relating to the construction of sewers shall govern any city of the second class in the construction of the lateral sewers herein referred to, in the manner as by law provided, but the said main sewer herein provided for shall be builded and constructed at the expense of the entire municipality, upon plans and specifications and advertising for the lowest bidder, as provided by law for the making of other internal improvements.
K.S.A. 14-518