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Analisis Sedimentasi Pada Bendung Cadasgantung Desa Sindangsari Kecamatan Cigedug Kabupaten Garut Depi Prayogi; Adi Susetyaningsih; Sulwan Permana
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2045

Abstract

Irrigation is a crucial component in the agricultural sector for enhancing productivity and ensuring food security. Adequate availability of irrigation water is essential for farmers to support crop cultivation activities. One of the most vital irrigation infrastructures is the weir, which functions to retain and raise the river water level so it can be diverted into irrigation channels.Cadasgantung Weir is located in Sindangsari Village, Garut Regency, West Java Province, at coordinates 07'18’04.1” S and 107'48’18.9” E. One of the main issues in the operation of weirs is sedimentation. Sediment accumulation in hydraulic structures can reduce storage capacity and affect the lifespan of the structure. This study aims to analyze the characteristics and quantity of sediment accumulated at Cadasgantung Weir. The analysis includes material type, particle size, sedimentation rate, and its impact on the weir’s functionality. The methods used involve numerical analysis using the HEC-RAS program and analytical calculations based on the Meyer-Peter Müller formula. The results show that the sediment at the weir is predominantly composed of medium-grained sand, with 60% of the particles having a diameter of 0.4641 mm. The sedimentation rate is highly influenced by water discharge, with a rate of 77.018 tons/day at base flow discharge, increasing to 607.736 tons/day at a 25-year return period (Q25). Meanwhile, at 50-year (Q50) and 100-year (Q100) return periods, the sedimentation rates are lower, recorded at 136.321 tons/day and 146.308 tons/day, respectively.Therefore, effective sediment management is necessary to maintain the optimal function of the weir.
Analisis Kebutuhan Infrastruktur Untuk Mitigasi Bencana di Pantai Selatan Kabupaten Garut Adi Susetyaningsih; Dias Reza Efrianto
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2765

Abstract

Wilayah pesisir selatan Kabupaten Garut, khususnya Pantai Rancabuaya dan Pantai Citanggeuleuk, kedua pantai memiliki potensi terhadap bencana tsunami, abrasi pantai, dan banjir rob. Penelitian ini bertujuan mengidentifikasi potensi bencana, memetakan sebaran zona rawan, serta menganalisis kebutuhan infrastruktur mitigasi berdasarkan kondisi eksisting dan standar teknis. Metode penelitian menggunakan pendekatan deskriptif dengan analisis spasial berbasis Sistem Informasi Geografis (SIG) melalui perangkat lunak QGIS. Data primer diperoleh melalui observasi lapangan dan wawancara, sedangkan data sekunder berasal dari peta topografi, Digital Elevation Model (DEM), penggunaan lahan, dan peta risiko bencana. Hasil penelitian menunjukkan sebagian besar permukiman dan fasilitas publik berada pada zona kerentanan sangat tinggi (0–500 meter dari garis pantai dan elevasi 0–25 mdpl). Infrastruktur mitigasi yang tersedia belum memadai, dengan kebutuhan tambahan meliputi total 39 unit rambu evakuasi terdiri dari 22 unit rambu jalur evakuasi dan 17 unit rambu tambahan, pengadaan 3 unit sirene untuk Pantai Rancabuaya dan 2 unit sirene untuk Pantai Citanggeuleuk, serta pembangunan struktur pelindung pantai sepanjang 1.294 m (Pantai Rancabuaya) dan 170 m (Pantai Citanggeuleuk). Rekomendasi ini diharapkan menjadi acuan perencanaan mitigasi bencana pesisir yang efektif dan tepat sasaran di Kabupaten Garut. hasil penelitian ini memberikan kontribusi bagi pemerintah daerah dalam penyusunan kebijakan pembangunan pesisir yang berorientasi pada pengurangan risiko bencana dan peningkatan ketahanan masyarakat.
Optimasi Sistem Irigasi Dalam Meningkatkan Produktivitas Pertanian Desa. Cibunar, Kecamatan.Cibatu Adi Susetyaningsih; Sulwan Permana; Yoga Adela
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2047

Abstract

The issue of water availability for agriculture has become a major challenge due to climate change and the need for improved water management. Irregular rainfall patterns and frequent water shortages pose a threat to crop productivity and farmers' livelihoods. Therefore, this study aims to analyze the uneven distribution of water availability throughout the year, particularly during the dry season. It also assesses water demand and supply using the FJ Mock method and the CROPWAT 8.0 software.The results of the study show that the dependable discharge of the Citameng IV Weir in April reaches 101.260 liters/second, while the water demand for 200 hectares of rice fields in Cibunar Village is 538.65 liters/second. Further analysis focuses on optimizing the irrigation system to enhance agricultural productivity in Cibunar Village, Cibatu District, Garut Regency.The study recommends the design of a trapezoidal irrigation channel lined with stone to efficiently convey water to agricultural land. For an area of 200 hectares, the proposed channel dimensions include a top width of 4.56 meters, a bottom width of 1.23 meters, a water depth of 0.65 meters, and a freeboard height of 0.46 meters.In addition, the study suggests optimizing irrigation system management by involving local communities and developing a more effective water distribution schedule to prevent conflicts among farmers. The construction of weirs or reservoirs is also recommended to regulate water availability more evenly, thereby improving agricultural productivity.
Perbandingan Instalasi Pengolahan Air Limbah Pada Hunian Tipe RSS (Rumah Sangat Sederhana) : Studi Empiris Perumahan Green Barusuda Indah Adi Susetyaningsih; Muhamad Andhika Abdul Azis
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3040

Abstract

Domestic wastewater management is an important challenge in housing development, particularly in areas consisting of RSS-type housing (Very Simple Houses) occupied by low-income communities. In regions that do not yet have urban wastewater treatment systems, alternative technologies are required that are efficient, economical, and compatible with the financial capabilities of residents. This study aims to analyze the comparison between Independent Wastewater Treatment Systems (IPAL Mandiri) and Communal Wastewater Treatment Systems (IPAL Komunal) based on aspects of construction cost, maintenance, and sustainability. The study was conducted in the Green Barusuda Indah Housing Complex, Cigedug District, Garut Regency, which consists of 69 housing units of type 36/60 equipped with an Independent IPAL system. Based on SNI 2398:2017 guidelines and the Regulation of the Minister of Public Works and Public Housing No. 4 of 2017, residential areas with more than 50 housing units are recommended to use a Communal IPAL system. The research employed a descriptive quantitative method with a comparative approach to assess the technical, economic, and operational efficiency of both systems. The results indicate that the Communal IPAL system is more efficient and sustainable, with a construction cost of only IDR 95.96 million, significantly lower than the Independent IPAL system, which requires IDR 417.84 million. Over a 20-year period, the maintenance cost of the Independent IPAL system reaches approximately IDR 1 billion, whereas the Communal IPAL system requires only around IDR 400 million. Therefore, the Communal IPAL system is more suitable for densely populated residential areas because it is more cost-effective, efficient in management, and supports environmental sustainability through community participation.
Evaluasi Kinerja Infrastruktur Pengelolaan Sampah Di Pusat Kota Garut Adi Susetyaningsih; Thoriq Awalludin
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3041

Abstract

Urban waste management problems continue to increase along with population growth and community activities. The high volume of waste generation is not proportional to the availability of waste transportation fleets and the condition of Temporary Disposal Sites (TPS), most of which still operate conventionally, resulting in waste accumulation at TPS locations and increasing the burden on Final Disposal Sites (TPA). This study aims to evaluate the performance of the existing waste transportation fleet and analyze the planning of segregated TPS facilities as a strategy to reduce the volume of waste sent to the TPA. The research method used is descriptive quantitative, with data collected through field observations and documentation from related agencies. Data were analyzed by calculating waste generation and composition, evaluating fleet adequacy based on capacity, hauling frequency, and technical conditions, and designing segregated TPS facilities adapted to the characteristics of urban waste. Based on the analysis results, waste generation in Garut Kota District reaches approximately 57.28 tons per day, with an average transportation distance of approximately 11 km to the Pasirbajing TPA. The ideal number of fleets required to handle the total waste generation consists of 9 dump trucks and 5 arm roll trucks, while the existing condition only fulfills around 70% of the ideal requirement. The analysis was also complemented by transportation route planning to improve daily hauling efficiency. The novelty of this research lies in the integration of fleet evaluation and segregated TPS planning, which have generally been studied separately in previous research. The results of this study are expected to provide technical recommendations in the form of fleet addition and rejuvenation, hauling optimization, segregated TPS development, and the establishment of effective transportation routes. Therefore, this study is expected to support the improvement of a waste management system that is more efficient, sustainable, and adaptive to urban needs.
Co-Authors A.A. Ketut Agung Cahyawan W AA Sudharmawan, AA Abdullah Syafe'i Adam, Farhan Afriza, Muhamad Rizky Agus Ismail Agustian, Zani Aidil Saepul Rohman, Agum Ajhar, Alfi Nur Al-Ghani, Davin Alam, Romy Zaenul Amirulhaq, Rama Mohammad Anggara, Daffa Rizky Anggi Eka Fahlevi Anwari, M Riadi Firdaus Al Asep Nurjaman Azhari, Audi Amhar Azmi Choerul Maptuhi Barkah, Fauzi Barokah, Putri Dara Lestari Cepi Wendiki Alamsyah Dafa, Daril Muhamad Depi Prayogi Dermawan, Dena Kamal Destianti, Rahayu Giska Dias Reza Efrianto Dicky Muhamad Fadli Dini Destiani Siti Fatimah Dwiputra, Erdi Rizky Efrianto, Dias Reza Eko Walujodjati Fadhillah, M Jamil Al Fahlevi, Anggi Eka Fahmi Moh. Taofik Febriyanti, Tina Fery Safaria Firdaus, Muhammad Raihan Gariballah Sharief Ginaski, Zaki Muhamad Gumelar, Rizky Ahmad Gunadi, Musfik Alaida Gungun Gunawan Hakim, Firman Nur Hantari, Anjas Ninda Harsi, Nendi Rustandi Hendi Hamdani Herlina, Julia Hidayat, Abdul Rojak Hidayat, Fahreza Pratama Hidayat, Rizqy Rachmat Hikmal, Fauzan Ida Farida Ida Farida Ida Parida Ikhsannudin, Adam Fadly Ilyas Maulani Irsan Permana Irvan Nurawaludin Ivan Darmawan Jalu Hudha Pratama Junaedi Ramdani Juniarti, Sintia Kamaludin, Ali Kosasih, Andrean Kurniawan, Hari Laya, Putri Maptuhi, Azmi Choerul Mardiah, Ilma Hayatul Maulana, Muhamad Farhan Miraj, Ahmad Fauzi Saepul Mochammad Suva Nugraha Mubarok, Encep Ahmad Husni Muhamad Andhika Abdul Azis Muhammad Aldi Rizki Muhammad Badru Zaman Muhammad Faqih Muhammad Wildan Muharram, Moch Raihan Mujakki, Akmal Najata, Sulton Aulia Nendi Rustandi Harsi Novianty, Nindita Nugraha, Akbar Dwinanda Nugroho, Satryo Bimo Nurendah, Siti Nurillah Jamil Achmawati Novel Nurohman, Sendi Rijali Patria, Dhika Muhammad Purwani, Rosdiana Putri Putri Anggana, Syalwa Nabila Qisty, Jovanscha Rachmat, Rio Adhitya Rahayu, Yari Ardiansyah Rahmattuloh, Gilang Ramadhan Ramadhani, Ani Ramdani, Junaedi Rd. Ahmad Buchari, Rd. Ahmad Rega Muhammad Exiana Rismansyah, Tendi Risti, Lutfi Zulvia Rizki Kurniawan Rizki Taopik Rizky Ahmad Gumelar Roby Ramda Nurputra Romadhona, Naufan Safutri, Mahardieani Rida Saharah, Helmi Sandjaya, Teguh Saputra, Dimas Febrian Sari, Mitha Mutia Sari, Putri Audya Sawitri Budi Utami Sharief, Gariballah Siti Rahmah Alawiyah Suciyana, Gina Suhendi Sujiwo, Bagas Sulwan Permana Sulwan Permana Sulwan Permana Syahrani, Firah Aulia Thoriq Awalludin Tofan, Inggit Hardiyanti Totti, Devor Sebastian Welianda, Muhammad Wiyoga, Rangga Bisma Yanuar, Syahrul Yoga Adela Zakiyahi, Noviyanti Siti Zaman, Muhammad Badru Zihan Melinda Zipa, Naylla Azizha