JETTY PLANNING FOR SEDIMENT CONTROL IN CILETUH ESTUARY, SUKABUMI REGENCY

• Main Author: MAULANA SUTRISNA - NIM : 15813043 , AFRIZAL
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25090
• Institution: Institut Teknologi Bandung

<p align="justify">Fishermen around Ciletuh estuary having difficult times due to their lack of fish cathments. This happens because of sedimentation on Ciletuh estuary, causing the fishermen unable to moor their boats. Sedimentations in Ciletuh estuary is the accumulation of the sediment transport from Ciletuh river. This can lead to many problems in the estuary and the surrounding. This is confirmed from observations in the field that in Ciletuh Bay there has been a very worrying sedimentation. Therefore, to overcome these problems, it is necessary to do the analysis related to river flow, sedimentation, and also the effect of tides and waves in Ciletuh Bay. So that can be made a proper estuary protection, so that the fishermen can back to their normal activities. The sedimentation modeling is performed by using Delft3D with 3 conditions: wet season, dry season and flood condition. Concluded that the highest sedimentation happens when flood condition is in return periode of 2 years, with the value of sedimentation reaching 2 meters high. The chosen alternative is to build two jetty along 700 meters on both sides of Ciletuh estuary. Planning of the jetty includes calculation of the amount and thickness of the protection stone, elevation and width of the top, toe protection, calculation of the soil bearing capacity, and the cost analysis. The cost required to build these jetty in Ciletuh estuary is about 23,4 Billion rupiah. <p align="justify"> <br />