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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Journal of Green Science and Technology Indonesian Journal of Advanced Research (IJAR) Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat Journal of Green Science and Technology
Akbar Winasis
Fakultas Teknik Universitas Swadaya Gunung Jati Cirebon Jawa Barat, Indonesia
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation Other

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Capacity Analysis of Downstream Cijangkelok River Using HEC-RAS Software Anggista, Dhea; Zahra, Farach Alifia; Mariani, Nadia; Winasis, Akbar
Indonesian Journal of Advanced Research Vol. 4 No. 7 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijar.v4i7.14965

Abstract

This study aims to analyze the capacity of the Cijangkelok River downstream in facing the planned flood discharge, with a hydraulic modeling approach using HEC-RAS software. Maximum daily rainfall data from five rainfall stations during the 2014-2023 period was used as the basis for calculating flood discharge using the Rational method and Nakayasu Synthetic Unit Hydrograph (HSS). The calculation results showed that the peak flood discharge for the 10, 25, and 50-year return periods reached 599.71 m³/det, 648.91 m³/det, and 682.82 m³/det using the Rational method, and 835.01 m³/det, 888.68 m³/det, and 922.90 m³/det using the Nakayasu HSS method, respectively. Flow simulations with HEC-RAS indicated that some river cross sections, especially at STA 27+950, 28+050, and 28+100, were unable to accommodate the maximum discharge, causing runoff outside the channel. This finding indicates that the capacity of the existing channel is not adequate to safely channelize flood flows. The results of this study are expected to serve as a technical reference in river normalization planning and more targeted and sustainable flood mitigation efforts.
Performance Index Analysis of Irrigation Areas Using E-PAKSI Software for Sustainable Maintenance in West Java Region Assyabill, Bramudya Gusti; Maulana, Rahmat; Mulyono, Heri; Winasis, Akbar
Indonesian Journal of Advanced Research Vol. 4 No. 8 (2025): August 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijar.v4i8.15158

Abstract

This study analyzed the performance of the Seuseupan Irrigation Area in Cirebon Regency using the E-PAKSI application. The research employed a descriptive-qualitative method with both primary and secondary data collection. The results revealed a combined main and tertiary irrigation system performance index of 57.62%, which falls into the underperformance category. Water discharge analysis indicated sufficient supply for the rice-rice cropping pattern across the 1,347-hectare service area. However, institutional aspects and personnel were found to be non-compliant with regulations. Furthermore, there was a significant increase in maintenance costs (AKNOP), rising from Rp2.31 billion in 2022 to Rp22.33 billion in 2024. This highlights the critical need for serious attention to the management of irrigation assets and infrastructure in the region.
Co-Authors Anggista, Dhea Assyabill, Bramudya Gusti Bagas Ramadhan Ghisya Siti Rochmah Hamdan Ali Khapid Heri Mulyono Heri Mulyono Iyep Inayatullah Mariani, Nadia Maulana, Rahmat Nurdiyanto Nurdiyanto Nurdiyanto Nurdiyanto Nurdiyanto, Nurdiyanto Ohan Farhan Ramlah Puji Astuti Rendy Yogista Wihardi Saihul Anwar Zahra, Farach Alifia