The main objective of this project was to develop a tool, iCOAST (integrated COastal Alert SysTem), to address coastal risks caused by extreme waves and high sea water levels in European coastal areas. iCOAST was meant to be used as a coastal early warning system to forecast storm events and as a tool to help in the decision making processes of the interventions for managers. The main targets of iCOAST were urban beaches and, coastal defenses and infrastructures where most of the casualties are reported.