Semenyih Reservoir lifetime prediction using empirical method.

Reservoir lifetime can be interpreted as the number of years a reservoir can be used to fulfil its purpose. This study proposes an approach to predict the remaining life of Semenyih reservoir using an empirical method. The result of this study can help in making important decisions in the water supply. This paper mainly focuses on Semenyih dam which is one of the Klang Valley major dams in Selangor, Malaysia built in 1985, with a lifetime plan of 100 years. This watershed basin has one of the main rivers in the state of Selangor, which has been negatively affected by industrial and urban wastes since early 1990. The annual sedimentation rate plan of Semenyih Reservoir was estimated from 13,165,400 m³ in 2004 to 13,511,900m³ in 2010, however as calculated in 2016, sediment delivery reached 13,665,450 m³ in the Semenyih catchment. The proposed result of the Semenyih Reservoir remaining lifetime using the empirical method can be estimated by years, and this number then can be used as a reference to predict the remaining volume of Semenyih Reservoir dead storage using the sediment approach. In this paper the lifetime of the reservoir was estimated at 65 years. [ABSTRACT FROM AUTHOR]