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I Wayan Yasa
Fakultas Teknik, Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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PENGENDALIAN BANJIR SUNGAI BENGKANG UNTUK MENDUKUNG KAWASAN EKONOMI KHUSUS MANDALIKA DEWANDHA MAS AGASTYA; I WAYAN YASA; HUMAIROH SAIDAH; MUH BAGUS BUDIANTO; I DEWA GEDE JAYANEGARA
GANEC SWARA Vol 18, No 4 (2024): Desember 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i4.1110

Abstract

Changes in land use that have occurred over a period of several years in the Kuta area have resulted in a lack of water catchment areas. The impacts caused by the lack of catchment areas are flooding and reduced water quality in rivers. The flood disaster in the Bengkang River caused damage to bridge infrastructure and people’s homes. The Bengkang river basin is divided into 3 sub – basins with a total area of 10,45 km2. Based on the results of the design flood analysis using the Nakayasu synthetic unit hydrograph method, the largest flood discharge value was obtained, namely 32,859 m3/second for a return period of 25 years. Hydraulic modeling was carried out to determine the water level and the ability of the river section to receive flow using HEC-RAS 6.1 software. Based on the simulation results with a return period of 5 years, it is known that flooding occurs in the middle and lower reaches of the Bengkang River, so structural mitigation is needed, namely normalization and repair of embankments. A 25-year return period flow simulation was carried out using a cross – section of the channel plan and no runoff was obtained in the Bengkang River.
Co-Authors Abdul Muaz Ghazali Adhitya Halim .P Agus Suroso ANID SUPRIYADI Apollonius Monsart ATAS PRACOYO Devi Suryani Putri DEWANDHA MAS AGASTYA DEWANDHA MAS AGASTYA EKO PRADJOKO ERY SETIAWAN Fika Septina Pangaribuan Hartana Hartana HARTANA HARTANA Hasyim, Hasyim Heri Sulistiyono HERI SULISTYONO Hidayat, Syamsul Humairoh Saidah I Dewa Gede Jaya Negara I DEWA GEDE JAYA NEGERA I DEWA GEDE JAYANEGARA I.D.G Jayanegara Ike Puspasari Ismayanti Ismayanti Lilik Hanifah Lilik Hanifah Linda Asnawati Lulu Lutfiati M. Abbil Pratama MUH BAGUS BUDIANTO Muh. Bagus Budianto Ni Luh Ayu Aprilianti Ni Putu Ira Sintia Kurnianti Salehudin Salehudin SASMITO SOEKARNO Tia Ardiani Yusron Saadi YUSRON SAADI