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El Atazar Dam : ウィキペディア英語版 | El Atazar Dam
El Atazar Dam is an arch dam built near Madrid, Spain on the Lozoya River, very close to where the Lozoya joins the Jarama. It is the oldest dome dam in the world. The curved design of the dam is optimum for the narrow gorge in which it was built to retain water in the reservoir. Arch dams are thin and require less material to construct than other dam types.〔(【引用サイトリンク】title=Dam basics )〕 When the dam was built, the decision was made to use the dam to store and regulate water only and not to provide energy. Construction started on the dam in 1968 and finished in 1972. ==Design== The dam is 440 feet (134 m) high and 171.6 feet (52.3 m) wide at the foundation. The reservoir capacity is . It is a double curvature concrete arch buttress design.〔(【引用サイトリンク】title=El Atazar Background )〕
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「El Atazar Dam」の詳細全文を読む
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