GEODECO can design retaining structures of different kinds, including sheet-pile walls, slurry walls, secant pile walls, reinforced jet-grouting walls and micropiles walls supported with either tie-backs or struts. A considerable amount of expertise is available on excavations in urban areas where interaction between retaining structures and adjacent buildings is of the utmost relevance. Soil pressure, structural stresses and deformations induced in the surrounding area under both static and dynamic conditions are evaluated using state of the art software and applying rigorous soil characterization criteria.