In 1948 Congress approved the Central and Southern Florida Project for Flood Control and Other Purposes (C&SF) and consolidated the Everglades Drainage District and the Okeechobee Flood Control District under this.[76] The C&SF used four methods in flood management: levees, water storage areas, canal improvements, and large pumps to assist gravity. Between 1952 and 1954 in cooperation with the state of Florida it built a levee 100 miles (160 km) long between the eastern Everglades and suburbs from Palm Beach to Homestead, and blocked the flow of water into populated areas.[77] Between 1954 and 1963 it divided the Everglades into basins. In the northern Everglades were Water Conservation Areas (WCAs), and the Everglades Agricultural Area (EAA) bordering to the south of Lake Okeechobee. In the southern Everglades was Everglades National Park. Levees and pumping stations bordered each WCA, which released water in drier times and removed it and pumped it to the ocean or Gulf of Mexico in times of flood. The WCAs took up about 37 percent of the original Everglades.[78]