A final design for the beach was unveiled in July 1935. The beach project involved filling in approximately of LeRoy's and Pelham Bays with landfill, followed by a total of of sand. Moses thought that waste from the New York City Department of Sanitation would be cheaper than sand. In early 1935, workers began placing the garbage fill around Rodman's Neck, Twin Island, and Hunter Island. After the garbage began washing onto the beach, the rest of the site was filled-in using sand starting in 1936. The beach, designed by Gilmore David Clarke and Aymar Embury II, was dedicated in July 1936 despite only being partially complete. The beach officially opened on June 25, 1937. Soon after Orchard Beach opened, it was expanded, starting with the southern locker room in 1939. The water between Hunter and Twin Islands was filled in during 1946 and 1947, with new jetties at each end of the beach. The promenade was extended over the fill and opened in 1947, Further improvements were made to the bathhouse pavilion in 1952 and to the northern jetty in 1955. A new concession stand was added north of the pavilion in 1962, and a privately funded Golf driving range was also added that year. The beach was renovated starting in 1964.