DREDGING WITH A VIEW TO THE RESTORATION OF THE SEA BED IN THE CRISPI N.3 BASIN OF THE COMMERCIAL PORT IN ORDER TO ALLOW THE MOORING OF VESSELS TO BERTH AND TO IMPROVE THE FUNCTION OF THE PORT OF PALERMO, AND WILL NOT BE USED AS A CONDITION FOR THE PERFORMANCE OF THE MANTELES OF THE MANTELLE OF THE INDUSTRIAL DOCK OF THE SAME PORT.