The Lima coast highway also know as “Costa Verde” was built in the sixties as a great space for leisure and enjoyment for citizens and as an alternative way to release the traffic from the main urban areas. Unfortunately, today it has become the opposite. The high traffic of vehicles that move along this road and the constant vibrations that they produce, this added to the elements such as the sea breeze, the rains and the small earthquakes, generate rockfalls from the slope. These situation increased the accident rate of this road causing a series of accidents. Parallel to these accidents, the engineering of geosynthetics was advancing looking for alternative solutions to conventional ones (steel + concrete anchors) that became impractical and very expensive. This led to the finding in the geogrids a solution that helped to reduce the energy produced by the rockfall, minimizing the damage they could produce.