 The work is meant to protect the inlet until a dredge arrives in about a month.The dredge will remove about remove 500,000 cubic yards of sand — enough to cover a football field 9 feet, 3 inches deep — from the inlet and put it in site called a "borrow area" off the coast of the Town of Jupiter Island.In 2019, that sand will be sucked up and spread on beaches from the inlet south to the Martin-Palm Beach county line.