TECHINCAL PLANNING FOR DEBRIS FLOW CONTROL IN AIR KOTOK VILLAGE, LEBONG, BENGKULU

Ketahun river which runs through Lebong Regency, Province of Bengkulu start its stream from Gedanghululai mountains has a big risk of landslide. The landslide that happened in the 2019, accompanied with massive rain, caused a debris flow which damaged Muara Aman city. Therefore, the urgency of ha...

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Bibliographic Details
Main Author: Tandao, Pascal
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/51947
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Institution: Institut Teknologi Bandung
Language: Indonesia
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Summary:Ketahun river which runs through Lebong Regency, Province of Bengkulu start its stream from Gedanghululai mountains has a big risk of landslide. The landslide that happened in the 2019, accompanied with massive rain, caused a debris flow which damaged Muara Aman city. Therefore, the urgency of having a solution for that problem arises. Sediment contained in the debris flow will be detained in a sabo dam storage that goes up to 48448.13 m3 which is able to hold all the potential land slide volume. Other than that, the flood happen at the downsteam area shall be surmounted by the river dikes. The river dikes will have it’s height varied between 0.61 meters to 2.06 meters and positioned according to the hydrolic model run from HEC-RAS which pinpointed the flood points.