This study indicates the causes that determined the prematural deterioration of the civil work, located on the waterfront of the Malecón La Costanera section Av. Universidad Av. Rafael Escardo San Miguel LIMA, confirms the work did not meet its useful period guaranteed by the Constructor consortium , part of it was made on an uncontrolled landfill, verified with pits, geological mapping and the erosion caused by the marine dynamics, add the calculations made by using the numerical results of the tests and analyzes carried out in the UNI. Application of the Terzaghi formula and the Monobe Okabe method. Support of the recommendations given in the responsibilities matrix.The work in 80% was built on a surface obtained on uncontrolled landfill ...