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This is a major erosion process that was caused by the borrowed area used for the construction of a dam, and over time erosion progressed, thus stabilizing and recovering it.

The treatment consisted of mechanical recalculation in the whole erosion area, construction of deep drains in the main axis of erosion and in the branches, construction of artificial berms, with the objective of reducing the length of the slopes, where D40 bermalong was used. In the external areas, a 0.80 x 0.30 m Sintemax mesh coated drainage system was constructed, preventing external contribution of rainwater to the interior of the erosion, and all external and internal erosion rainfall was conducted to the watercourse. Finally, the whole area was protected with heavyweight anti-erosive straw biomass.