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Nagarjuna Sagar Dam was built across the Krishna River at Nagarjuna Sagar where the river is forming boundary between Nalgonda district of Telangana state and Guntur district of Andhra Pradesh state in India. The construction duration of the dam was between the years of 1955 and 1967. The dam created a water reservoir whose gross storage capacity is . The dam is tall from its deepest foundation and long with 26 flood gates which are wide and tall. Nagarjuna Sagar was the earliest in the series of large infrastructure projects initiated for the Green Revolution in India. It is also one of the earliest multi-purpose irrigation and hydro-electric projects in India. The dam provides irrigation water to the Prakasam, Guntur, Krishna, Khammam, West Godavari and Nalgonda districts along with hydro electricity generation. ==History== The proposal to construct a dam to use the excess waters of the Krishna river was planned by the Nizam of Hyderabad and engaged British Engineers in 1903 to irrigate Telangana. Since then, various competing sites in Siddeswaram, Hyderabad and Pulichintala were identified as the most suitable locations for the reservoirs. The perseverance of the Raja Vasireddy Ramagopala Krishna Maheswar Prasad (Raja of Muktyala) who donated 55000 acres of his land and fifty five million British Pounds in wealth paved way for the site identification, design and construction of the dam.〔("Rao, K.L., Cusecs Candidate: Memoirs of an Engineers hi, 1978, Metropolitan, p. 31" )〕〔(The Hindu : Magazine / Focus : Taming the Krishna )〕〔(Welcome to APGENCO )〕 Nagarjunasagar was the earliest in the series of "modern temples" taken up to usher in the Green Revolution in India.〔 The dam was built with local know how under the able engineering leadership of K.L. Rao. Project construction was officially inaugurated by Prime Minister Jawaharlal Nehru on 10 December 1955 and proceeded for the next twelve years. The reservoir water was released into the left and right bank canals by Prime Minister Indira Gandhi in 1967. Construction of the hydropower plant followed, with generation increasing between 1978 and 1985, as additional units came into service. The construction of the dam submerged an ancient Buddhist settlement, Nagarjunakonda, which was the capital of the Ikshvaku dynasty in the 1st and 2nd centuries, the successors of the Satavahanas in the Eastern Deccan. Excavations here had yielded 30 Buddhist monasteries, as well as art works and inscriptions of great historical importance. In advance of the reservoir's flooding, monuments were dug up and relocated. Some were moved to Nagarjuna's Hill, now an island in the middle of the reservoir. Others were moved to the mainland.〔(【引用サイトリンク】title=Nagarjunakonda )〕 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「Nagarjuna Sagar Dam」の詳細全文を読む スポンサード リンク
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