Paragraph 24 I1

If any such accumulation, scouring or alteration of the tidal flow arises within the period of five years and is removed or remedied in accordance with paragraph 23, then any recurrence of such accumulation, scouring or alteration of the tidal flow shall from time to time be removed or otherwise remedied in accordance with paragraph 23 during a period of 10 years after the completion of the specified works or the removal of such temporary structures, as the case may be.