Natural Coastal Protection System Preliminary Design

Nita Yuanita; Alamsyah Kurniawan; Paramashanti Paramashanti; Anasya Arsita Laksmi

Nita Yuanita Ocean Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
Alamsyah Kurniawan Ocean Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
Paramashanti Paramashanti Ocean Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia
Anasya Arsita Laksmi Ocean Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia

Abstract

Erosion is one of main problem in coastal area. Currently, natural coastal protection using vegetation such as mangrove is preferable in many places in the world (Othman, 1994; Gedan et al., 2010). However there are challenges in development of this natural coastal protection, e.g. mangrove-trees have been damaged by the waves or current, before they are growth strongly. This study focused on a combination of main natural protection and temporary manmade structures. The main protection consists of mangrove plant vegetation, expected to serve long-term protection. While temporary structure is designed to protect the growth of young mangrove from the waves and erosion, it is designed as a non-conventional rubble mound structure made of geobag with a design life is determined by growth period of mangrove seeds. The concept design criteria is considered suitable for the remote area 1) low cost; 2) manually constructed; and 3) mangrove as the main protection

##Keywords:## Coastal Protection, Erosion, Mangrove, Natural Protection, Green Structure