xmlns:atom="http://www.w3.org/2005/Atom"
4. Should any such accumulation or erosion or alteration of the tidal flow or littoral drift arise during the said construction or the said period of 10 years and be remedied in accordance with paragraph (3), any recurrence of such accumulation or erosion or alteration of the tidal flow or littoral drift shall from time to time be so remedied by the undertaker during the said period of 10 years and at any time thereafter, save that the undertaker’s obligation under this paragraph shall cease in the event that following the remedying of any such accumulation or erosion or alteration of the tidal flow or littoral drift a period of 10 years elapses without any further such accumulation or erosion or alteration of the tidal flow or littoral drift or, if the specified works are decommissioned and removed before the end of that 10 year period, a period of 2 years elapses after such decommissioning and removal without any further such accumulation or erosion or alteration of the tidal flow or littoral drift.