THE PROJECT INVOLVES THE DEVELOPMENT AND DEMONSTRATION OF A NOW-CASTING SERVICE OF THE RISK OF FLOODING IN THE PRESENCE OF HEAVY RAINS AND USING IOT TECHNOLOGIES AND BIG DATA ANALYSIS TOOLS DESIGNED FOR SMART CITIES AND URBAN DRAINAGE NETWORK MANAGERS, ALLOWING QUICKER ACTIONS TO PROTECT PEOPLE AND PROPERTIES, AND THE SUBJECTS IN CHARGE OF THE MAINTENANCE OF CADITORIES, WHO WILL BE ABLE TO PLAN THE INTERVENTIONS FOR AN OPTIMAL OPERATION OF THE SYSTEM.