The Dams are large and complex projects, and are generally characterized by the enormous cost of implementation in some cases, and the length of the implementation period, are rarely carried out a dam in Syria within the estimated plan which developed his of the cost and time, this is due to the risks that intercepted projects during the implementation phase and directly influenced the basic project objectives ( cost and time and quality). This research experiences to the reality of the implementation of the late dams, through undertake a study the risks suffered by the implementation of sector and influenced the basic objectives of the project (cost - time - quality), through a field survey study includes more than thirty-five dams in Syria. For this purpose have been used survey was distributed to a slice of experts and technicians in the form of dams, has enabled to obtain a list of the risks faced by the implementation of dams in addition to the assessment, In an attempt to develop a scientific methodology to analyze and manage the risks of dam projects by assessing the probability of their occurrence and their impact on the objectives of the project in the event of occurrence, with introduce a new standard for evaluating a detection / control, As per the approach to FMEA /Failure Mode and Effect Analysis/ and incorporate logic fuzzy, and arrange those risks according the Risk Criticality Number (RCN) for each risk early in order be sensitive to them than we can handled properly with proposing appropriate response strategies.