Flood Risk Assessment and Mitigation Strategies for the Sinjai and Tangka River Catchments in Indonesia using Hydraulic Modeling and Spatial Analysis
Received: 7 December 2024 | Revised: 6 January 2025 | Accepted: 11 January 2025 | Online: 3 April 2025
Corresponding author: Riswal Karamma
Abstract
This study aims to address the persistent flooding in Sinjai District, Indonesia, by developing a comprehensive spatial flood risk model. The development of this model was conducted using hazard, vulnerability, and capacity index data. The research first determines the weighted scores of the hazard, vulnerability, and capacity indices to categorize areas into high, medium, and low flood risk zones as a reference in developing flood mitigation. The study further uses the Unmanned Aerial Vehicle (UAV) technology to facilitate the collection of topographic data, which are then used as an input in the hydrological and hydraulic analysis. The overarching objective of this research is to provide insights and recommendations to policymakers, with the aim of informing effective strategies for reducing the flood risk. The results indicate that low-risk areas encompass 564.45 hectares, medium-risk areas extend to 645.83 hectares, and high-risk areas cover 46.19 hectares. The proposed flood control measures include the construction of retention ponds, embankments, and river normalization. These interventions have the potential to reduce up to 507.12 hectares, equivalent to 40.36% of the inundation area, thereby reducing the impact of flooding. The findings provide important guidance for policymakers in making decisions, devising mitigation strategies, and promoting sustainable development in the region.
Keywords:
flood risk reduction strategy, Sinjai district, Sinjai River, Tangka RiverDownloads
References
M. R. Mustamin, F. Maricar, and R. Karamma, "Hydrological Analysis In Selecting Flood Discharge Method In Watershed Of Kelara River," INTEK: Jurnal Penelitian, vol. 8, no. 2, pp. 141–150, Dec. 2021.
M. R. Mustamin, F. Maricar, and M. P. Hatta, "Effects of Nipa-Nipa Regulation Pond on Flood Control of Tallo River," IOP Conference Series: Earth and Environmental Science, vol. 1134, no. 1, Jan. 2023, Art. no. 012002.
A. R. Suleman, S. Badaruddin, M. Mustamin, Z. Saing, and M. R. Mustamin, "Flood mitigation of Bila River in Sidrap Regency Indonesia based on eco-drainage retention pond," Water Practice and Technology, vol. 18, no. 5, pp. 1184–1195, Apr. 2023.
Muhlis, Fatmawati, I. Rahim, and Syamsia, "Detection of Potential Natural Disasters Due to the Rate of Land Change in Sinjai Indonesia Regency with Geospatial Technology," PalArch’s Journal of Archaeology of Egypt/Egyptology, vol. 17, no. 9, pp. 1702–1721, 2020.
N. Afni, "Arahan Pengendalian Banjir Berbasis GIS di Kecamatan Sinjai Utara Kab. Sinjai," Plano Madani : Jurnal Perencanaan Wilayah dan Kota, vol. 4, no. 1, pp. 22–31, Apr. 2015.
Y. Kassem, H. Gökçekuş, and N. Alijl, "Flash Flood Risk Assessment for Girne Region, Northern Cyprus," Engineering, Technology & Applied Science Research, vol. 12, no. 3, pp. 8728–8737, Jun. 2022.
N. Kumar and R. Jha, "GIS-based Flood Risk Mapping: The Case Study of Kosi River Basin, Bihar, India," Engineering, Technology & Applied Science Research, vol. 13, no. 1, pp. 9830–9836, Feb. 2023.
F. Fadlina, M. A. Thaha, F. Maricar, and M. P. Hatta, "Spatial Modeling For Flood Risk Reduction In Wanggu Watershed, Kendari," International Journal of Engineering Trends and Technology - IJETT, vol. 70, no. 12, pp. 219–226, Dec. 2022.
R. Urban et al., "The Suitability of UAS for Mass Movement Monitoring Caused by Torrential Rainfall—A Study on the Talus Cones in the Alpine Terrain in High Tatras, Slovakia," ISPRS International Journal of Geo-Information, vol. 8, no. 8, Aug. 2019, Art. no. 317.
A. R. Suleman, H. Djufri, M. R. Mustamin, and M. L. Palembangan, "Structural Mitigation of Bila River, Sidrap Regency," Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 6, pp. 3573–3577, May 2021.
Regulation of the Minister of Public Works and Public Housing concerning Establishment of River Bounda, 28/PRT/M/2015. 2015.
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Copyright (c) 2025 Riswal Karamma, Sugiarto Badaruddin, Muhammad Rifaldi Mustamin, Muhammad Ihsan Mukrim
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