The state parks agency has begun placing 30,000 cubic yards of sand on the beach at Robert Moses State Park in an emergency repair of winter erosion damage.
George Gorman Jr., deputy regional director of the Office of Parks, Recreation and Historic Preservation, said the department hired Watral Brothers Inc. of Bay Shore for $250,000 to move the sand -- all that remains in a stockpile at the western end of the park.
The state will be seeking reimbursement from the Federal Emergency Management Agency because some of the erosion was created by a December storm that produced enough damage to qualify for a federal disaster declaration.
The company is trucking the sand to Field 5 to protect the dunes that buffer the boardwalk and ramps leading to the beach. The replenishment that began Friday at the east end of the parking field will continue about three weeks, Gorman said.
The agency said it hopes the sand will supplement the beach for the 2,000-foot length of Field 5, extending 80 feet seaward from the dune line and as deep as 4 feet.
There has been erosion at the beach over the winter, and the storm two weeks ago caused serious damage. At Fields 4 and 5, the waves carved away so much sand that there was a drop of more than 4 feet from the base of the dune line to the beach, which has been awash at high tide.
Some of the 30,000 cubic yards of sand could be placed at Field 4 if there is enough, parks officials have said, and some from Field 5 is expected to be carried by the current to Field 4.