Tender for 1. Previous retreat jobs from the existing wall and conditionation of the earth's margin in a length of 130,000, widening it to the Giza interior of the parcel to an approximate width of 2,000m so that you can insert new row from rock above to the existing stone. The ripped lands will be redirected to the same parcel according to df indications. 2. Build new margin wall performed with half-high rock size of 2,50m, given by rows placed with mechanical and embedded means previously executed to ensure their settlement. The first row of rock stones will be reused with mortars between the pieces that make up the wall and with the top row, to ensure their stability. Row will resume between them the appropriate ratio so the wall stays stablely gravitationally. 3. Will condition the floors on the top of the wall, so that they will stabilize and compact by leaving the full profile plot border.