It consists on a rock curtain with a concrete surface, the body of the Dam is formed with graduated materials that support the concrete surface formed with panels of 15,0 m height and variable thickness, the concrete surface rests over the pedestal that also works as a platform to make the injections of consolidation and impermeable screen that alongside a gallery system excavated on both sides of the curtain’s engraved will form the stem plane.

The concrete surface will have a system of seals and cupper joints and P. V. C.; that will be placed on all the joints of the concrete surface and on the perimeter joint of the base-concrete surface, these protections should guarantee minimum filtrations. To measure these filtrations, a filtering gallery will be placed on the bottom of the curtain on downstream zone in order to be able to get all the filtrations that may occur on the body of the press and to be able to measure the filtering flow on any given time of the year.