Kajian Distribusi Sedimentasi Waduk Wonorejo, Tulungagung-Jawa Timur

This study aims to know the distribution of sedimentation of the most suitable method amongthe Emperical Area Reduction Method and Area Increment Method for predicting the the distributionof sediments in the Reservoir Wonorejo. While the purpose of this study was to determine the baseelevation of a new reservoir (new zero elavation) after the existing sediments. With both methodscan be known distribution of sediments in the reservoir for the operating life of 8 years and 11years. After analysis, it can be concluded that Emperical Area Reduction Method is more suitable topredict the distribution of sedimentation in reservoirs Wonorejo. For operasi period of 8 years,sediment has reached an elevation of +122,21 m which is at 2.21 m above the base elevationreservoirs, the amount of sediment that settles in the reservoir is 2,0608. and for the operationof 11 years, sediments deposited reaches two, 2,2371. at an elevation of +123,47 m or 1,47m above the base elevation of the reservoir