It has to be recognized that there is a direct relationship between dam safety and its life-span, i.e. if the dam is unsafe its life-span has expired. Safety criteria for assessment of the life-span of dams. The life-span of any dam is as long as it is technically safe and operable!In view of the high damage potential of large storage dams, the safety has to be assessed based on an integral safety concept, which includes the following elements (Wieland and Mueller, 2009):ince then the safety of the dam has been re-established and a new dam monitoring system has been installed. Due to the many factors affecting the operational condition and environment of a dam, it is not possible to give a number for the remaining service life of existing dams.
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