Aswan Dam in Egypt had to be dredged regularly to remove sediments. After construction of the dam, aquatic weeds grew much faster in the clearer water, helped by fertilizer residues. The total length of the infested waterways was about 27,000 km in the mid-1990s. Weeds have been gradually brought under control by manual, mechanical and biological methods. Mediterranean fishing and brackish water lake fishery declined after the dam was finished because nutrients that flowed down the Nile to the Mediterranean were trapped behind the dam. For example, the sardine catch off the Egyptian coast declined from 18,000 tons in 1962 to a
Hanabanilla Dam Hanabanilla Dam The Hanabanilla Dam is an embankment dam on the Hanabanilla River near the village of El Salto del Hanabanilla in Villa Clara Province, Cuba. The purpose of the dam is to provide water for irrigation and municipal uses and to generate hydroelectric power. The dam withholds a reservoir of and the power station, located near its base, has an installed capacity of 43 MW. It is the largest hydroelectric power station in the country. Near the southern end of the reservoir is Jibacoa Dam, an auxiliary dam, which closes off one valley to create the existing large reservoir.