Disaster Management accords with the response to the management of resources and property. It is the exigency in today’s world. Flooding has become a global pervasive in the past decades which hampers economic and social development. This project endeavors an integrated flood risk management system employing a magnetic reed switch interfaced with microprocessor Arduino UNO using microcontroller 328p. The build-out in the architecture of the buildings into apartments and complexes have made a requisite for basements. This device is hence installed in the parking lot and basement of apartments, malls and corporate buildings as the water reach a particular level the reed switch gets closed generating an alert.T he residents of the apartment or the authorities of the building get an SMS through GSM module followed by an alarm. Now once excess water starts accumulating, water suction motor is used to remove water to prevent the rapid rise of water. Thus the reed switch is interfaced with Arduino for flood detection and the rising water level in the basement of buildings and alert people for easy evacuation. The comparison of the reed switch and the previously used sensors is done and the results are obtained.