A plan to build headlands and an artificial reef has been selected from three proposals by international design firms for a pilot project to restore and retain sand on Oceanside’s eroded beaches. The Australian firm International Coastal Management submitted the concept, and the headlands would be small, rounded extensions of the beach to be built at the ends of Tyson and Wisconsin streets. The raised headlands would be protected from the waves by rock barriers, similar to the area of the beach that supports the lifeguard headquarters building beneath the Oceanside pier. Instead of a building,…