This article shall, without reference to any other statute or charter provision, be deemed full authority for the construction, reconstruction, establishment, acquisition, improvement, renovation, extension, enlargement, increase, equipment, repair (including replacements), maintenance and operation of the works herein provided for, and for the issuance and sale of the bonds by this article authorized, and shall be construed as an additional alternative method therefor, and for the financing thereof, and no petition or other or further proceeding in respect to any such project, or to the issuance or sale of bonds under this article, and no publication of any ordinance, notice or proceeding relating to any such project, or to the issuance or sale of such bonds shall be required, except such as are prescribed in this article, any provisions of other statutes of the state to the contrary notwithstanding.