If no protests or objections in writing have been delivered to the clerk up to the hour set for the hearing thereon or if protests have been found by the legislative body to be insufficient, or have been overruled, or if protests against the extent of the proposed district have been heard and denied, immediately thereupon the legislative body shall acquire jurisdiction to order the proposed work to be done.
If the hearing of objections is not required, pursuant to Section 5132, immediately upon passage of the resolution of intention the legislative body shall acquire jurisdiction to order the proposed work to be done.