hangars. East of the garage, there were two small one-story structures that served as an electrical closet and a pump house. Additionally, a one-story transformer building was located north of the hangars. Two one-story buildings for fire and gasoline pumps are located to the west of Ryan Center. The Navy also built several wood-frame structures during World War II, south of the hangars. Their facades were made of white clapboards, and they had gable or hipped roofs with narrow windows. A munitions storage complex was developed at the north end of the field around the same time. Although most of the original structures remain intact, the garage building and the field house were demolished by the Navy in 1941 and 1964, respectively. The Navy stopped using many of these structures after World War II. During World War II, the Navy built two barracks areas on the southwestern side of the field. The west barracks area comprised two barracks, while the main barracks area was larger. The main barracks also comprised two barracks: an "H"-shaped building for enlisted officers and a "T"-shaped building for bachelor officers. However, it also had a mess hall, recreation building, and central square. South of the barracks was a sewage treatment plant. The main barracks were demolished after World War II and were replaced with more permanent barracks areas, which housed veterans. In the 1960s, the Navy built three ranch houses along the coast, which were intended for a planned Armed Forces Reserve Center. The Navy demolished the veterans' barracks and replaced them with a trailer park containing 24 courts for mobile homes. A three-story school building was built in this area in 1967. In 1970, the Navy demolished the barracks south of Hangar A and completed a new barracks, which was named Tylunas Hall after the late Navy commander John F. Tylunas. Tylunas Hall is now used by the DSNY. The Coast Guard also constructed frame barracks in 1943 and closed them by 1972. A new concrete barracks was completed in 1979. In 1979, the Coast Guard built a swimming pool on the site of its former barracks. Runways Floyd Bennett Field contains five concrete runways. Two were laid in 1929, while another two were constructed during the WPA Renovation Project in 1937–1938. Another runway was built in 1942, after the airport was transferred to Navy operation. During the WPA renovations, four turntables were installed