DOI : https://doi.org/10.18517/ijaseit.14.1.19433

Economic Loss due to the Failure of a Cascade Dam: A Study Case in the Saguling-Cirata-Jatiluhur Dam

Mohammad Bagus Adityawan (1), Bagus Pramono Yakti (2), Calvin Sandi (3), Andhika Wicaksono Sasongko (4), Mohammad Farid (5), Dhemi Harlan (6), Arno Adi Kuntoro (7), Widyaningtias (8), Edi Riawan (9)
(1) Center for Water Resources Development, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(2) Center for Water Resources Development, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(3) Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(4) Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(5) Center for Water Resources Development, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(6) Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(7) Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(8) Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
(9) Atmospheric Sciences Research Group, Department of Meteorology, Faculty of Earth Science and Technology, Institut Teknologi Bandung, Bandung, West Java, 40132, Indonesia
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How to cite (IJASEIT) :
Adityawan, Mohammad Bagus, et al. “Economic Loss Due to the Failure of a Cascade Dam: A Study Case in the Saguling-Cirata-Jatiluhur Dam”. International Journal on Advanced Science, Engineering and Information Technology, vol. 14, no. 1, Feb. 2024, pp. 333-4, doi:10.18517/ijaseit.14.1.19433.
Citation Format :
A dam break event can cause heavy loss in the affected area due to the lack of a mitigation system. Therefore, modeling the possibility of a dam break occurrence requires a risk analysis. The Saguling Dam, Cirata Dam, and Jatiluhur Dam make a cascade dam and is one of the country's most valuable assets. This study simulates a flood induced by the failure of this cascade dam. The dam break is simulated using HEC-HMS 4.6 with several dam-break scenarios due to overtopping and piping. The scenario with the highest peak discharge is then used to simulate the overland flow using HEC-RAS 5.0.7, representing the most extreme condition when the dam break occurs. The generated flood induced by the dam break hit seven regencies with a total affected area of 1,596.59 km2. Moreover, an economic analysis is conducted. The result states that the most affected regency by economic losses is Karawang Regency, and the least affected is Subang Regency. The financial analysis, conducted using the ECLAC method, shows that the extent of inundation influences economic losses due to flooding, the distribution of depth, and the land cover of the affected area. This study hopes to assist in developing a mitigation plan for future possible dam breaks and provide a recommendation for decision-makers for developing land use areas.

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