This document discusses various approaches to dam management through the use of sensors and IoT technologies. It provides an overview of 16 research papers related to using sensors to monitor water levels, detect cracks and corrosion, control dam gates automatically, and provide early flood detection. The goal of the discussed research is to improve dam safety and water management by automating monitoring and control functions to minimize failures and optimize water distribution. IoT technologies allow data from sensors to be transmitted remotely for analysis and timely decision making by authorities. The surveyed approaches aim to enhance dam safety and efficiency through automated monitoring and control systems.