The Punta Negra Dam is a concrete-face rock-fill dam on the San Juan River about west of San Juan in San Juan Province, Argentina. The purpose of the dam is to provide water for irrigation and the generation of hydroelectric power. The tall dam supports a power station and together with the Los Caracoles Dam upstream, it will provide for the irrigation of . Construction began in 2009 and the dam and was finished on August 29, 2015. It is being constructed immediately upstream of a diversion barrage.
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