The Punta Negra Dam is a

concrete-face rock-fill dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, ...

on the San Juan River about west of

San Juan San Juan, Spanish for Saint John, may refer to: Places Argentina * San Juan Province, Argentina * San Juan, Argentina, the capital of that province * San Juan, Salta, a village in Iruya, Salta Province * San Juan (Buenos Aires Underground), ...

in San Juan Province,

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...

. 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.

References

{{San Juan River (Argentina) dams Dams in Argentina Concrete-face rock-fill dams Buildings and structures in San Juan Province, Argentina Hydroelectric power stations in Argentina Dams completed in 2015 2015 establishments in Argentina