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The Engineer Sérgio Motta Dam, formerly known as the Porto Primavera Dam, is an embankment dam on the Paraná River near Rosana in São Paulo, Brazil. It was constructed between 1980 and 1999 for hydroelectric power production, flood control and navigation. The dam is named for Sergio Roberto Vieira da Motta, a prominent industrial engineer in São Paulo. At in length, it is the longest dam in Brazil.〔(【引用サイトリンク】url=http://www.acionista.com.br/home/cesp/050209_sem_acidentes.htm )〕〔(【引用サイトリンク】url=http://www.industcards.com/hydro-brazil-sp.htm )〕 The tall dam creates a reservoir with a capacity and surface area of . The dam supports hydroelectric power plant on its southern end with an installed capacity of . The power plant contains 14 x Kaplan turbine generators. Construction on the dam began in 1980 and the first filling of the reservoir to above sea level was complete by 1998. It was inaugurated in 1999 with the first three generators commissioned in March. In 2000, five more generators came online and by 2001, a total of ten were in operation. The second filling to above sea level was complete in March 2001 and by October 2003, all 14 generators were in operation.〔(【引用サイトリンク】url=http://www.cesp.com.br/portalCesp/portal.nsf/V03.02/Empresa_UsinaPorto )〕〔(【引用サイトリンク】url=http://www.cesp.com.br/portalCesp/portal.nsf/V03.02/Empresa_Historia?OpenDocument )〕 Although there are no plans to install them, the power plant has room to accommodate an additional four generators.〔 The dam also supports a long and wide navigation lock on its southern end with the ability to transport 27 million tons a year.〔(【引用サイトリンク】url=http://www.dee.feis.unesp.br/museu/cpenergia/paineis/Painel_4_hidroeletricas_construidas.pdf )〕 In 2005, an infestation of ''Hydrilla verticillata'' was discovered in the reservoir, the first time the invasive weed was discovered in Brazil. The dam has also had negative effects on downstream fish reproduction〔(【引用サイトリンク】url=http://earthobservatory.nasa.gov/IOTD/view.php?id=8696 )〕 and has a long fish ladder. ==See also== * Itaipu Dam * Ilha Solteira Dam * List of power stations in Brazil 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eng Sérgio Motta Dam」の詳細全文を読む スポンサード リンク
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