The vacation, discontinuance, or abolishment of any street, alley, or public place shall not terminate any existing easement rights for public utilities unless specifically so stated in the resolution, and the city does herewith specifically reserve for itself or its agent the right of use of any such street, alley, or public ground for use for future public utilities of storm or sanitary sewer and public water supply, which future right of usage shall include sufficient ground within the original street, alley, or public ground to permit original construction of these public utilities and continued maintenance thereafter, which right of use shall continue for an unlimited time thereafter. These rights of use reserved to the city or its agents shall continue regardless of the vacation, discontinuance, or abolishment unless specifically stated otherwise in the resolution of the Council.