DESIGN ANALYSIS OF COASTAL PROTECTION OF SUNGAI HITAM ESTUARY IN BENGKULU PROVINCE
DOI:
https://doi.org/10.35814/nbmwxc55Keywords:
Jetty, Siltation, Drift, Estuary, WaveAbstract
One of the estuaries in Bengkulu Province, the Air Hitam River Estuary, has gradation and estuary drift problems based on Google Earth satellite observations annually. The cause is the occurrence of high sediment material and the phenomenon of longshore currents. The structural solution is the design of a jetty structure with a long type because the estuarine condition causes the need to remain open. This coastal protection aims to maintain estuary stability and regulate the stream flow. The methods used in the research methods are the Admiralty method in the processing of tidal data and the Hindcasting method from CERC in the processing of wind data. The results of the analysis provide a jetty length of 270 m with a width of 200 m between jetties. The left and right jetties have a peak width of 3 m and the highest building is 4 m from sea level with high tidal parameters of HHWL, MSL, and LLWL conditions are 78.21 m, 0.04 m, and -78.36 m, respectively. The breaking wave analysis derived a height of 2.50 m at a depth of -3.22 m which is utilized for infrastrcture dimension analysis. The coastal protection materials used with a 1:2 building slope on both jetties are tetrapods for the first and second layers, and boulders for the core layer. Used 0.5-2 tons weight of tetrapods for both sides of the jetty, 0.44-16.71 kg and 0.18-16.71 kg weight of boulder stones for both sides of the jetty, and toe protection used boulder stones weighing 43.69-157.28 kg and 18.39-157.28 kg for both sides of the jetty. Based on the literature study and estuary conditions, this design is capable of maintaining estuary stability and control river flow effectively.
References
CERC, 1984. Shore Protection Manual (SPM '84). Research Center ed. Washington: US Army Coastal Engineering.
Chandra, P. G. P. O., Yojana, C. A. & Bagiarta, I. K. Y., 2021. Perencanaan Bangunan Jetty dari Bahan Bronjong di Muara Sungai Sungga Pantai Jasri Kabupaten Karangasem. Paduraksa, 10(1), pp. 182-194.
Farni, I., 2020. Pengaman Muara Pantai Salido Kabupaten Pesisir Selatan. Jurnal Rekayasa, 10(02), pp. 126-141.
Farni, I., 2020. Perencanaan Muara dan Pantai Salido Kabupaten Pesisir Selatan. Jurnal Rekayasa, 10(2), pp. 126-141.
Fauzi, M. A. R., Mardika, M. G. I., Fatkhurrozi, M. & Martino, A. F. H., 2024. Study Re-Analysis of High Wave Deformation in Re-Design Coastal Revetment Protection of Rajabasa Beach Kalianda. Journal of Science and Appliacative Technology , 8(1), pp. 24-37.
Fauzi, Y., Mayasari, Z. M. & Fachri, H. T., 2022. Pemodelan Potensi Bencana Banjir di Daerah Perkotaan Menggunakan SIG. Geomatika, 28(1), pp. 21-28.
Harryando, D., Nugroho, D. & Hariadi, 2017. Studi Tinggi Muka Air Rencana Dan Elevasi Puncak Breakwater Di Pantai Marina Ancol Jakarta. Jurnal Oseanografi, 6(1), pp. 39-46.
Ichsan, M. N., Anesya, V., P, P. N. & Nugroho, H., 2017. Perencanaan Perlindungan Pantai Tanjung Nipah, Kalimantan Tengah. Jurnal Teknik Sipil, 6(2), p. 308.
Igwe, I. S. & Ajoko, T. J., 2020. Analysis and Design of a Steel Floating Pontoon for Use as Jetty in the Coastal of Nigeria. European Journal of Engineering Research and Science, 5(6), pp. 1014-1015.
Ikhwani, H., Ramadhan, S., Ayu, M. & Wibowo, R. K., 2018. Perancangan Struktur Pantai di Muara Sungai Sedati, Sidoarjo, Jawa Timur Sebagai Upaya Mengatasi Pendangkalan. Volume IV, pp. 326-331.
Irawan, Y. & Dharmita, S., 2019. Jetty Sebagai Alternatif Pengaman Muara Sungai Air Bengkulu. Majalah Teknik Simes, 3(2), pp. 25-33.
Mardika, M. G. I., Mashuri & Hakim, D. R., 2024. Studi modeling dan mapping inundasi tsunami menggunakan software Delft3D studi kasus Pantai Labuan Jukung Lampung. PADURAKSA, 13(1), pp. 54-63.
Mardika, M. G. I. & Pratama, M. I., 2021. Analisis Pasang Surut Menggunakan Metode Least Square di Wilayah Perairan Muara Sungai Poso. Journal of Infrastructure Planning and Design (JIPAD), 1(1), pp. 1-8.
Mashuri, Mardika, M. G. I. & Sariyah, H., 2023. Studi Pemodelan Banjir 1-D (Satu Dimensi) DAN 2-D (Dua Dimensi) Menggunakan HEC-RAS 5.0.7 (Studi Kasus: Sungai Way Sulan). Jurnal Infrastruktur, 9(1), pp. 33-40.
Maulidin, R. & Tarigan, A. P. M., 2016. Analisa Dimensi dan Stabilitas Bangunan Pengaman (Jetty) Muara Lamteh di Kecamatan Peukan Bada Kabupaten Aceh Besar. pp. 1-10.
Pawitra, M. D., Indrayanti, E., Yusuf, M. & Zainuri, M., 2022. Sebaran Sedimen Dasar Perairan dan Pola Arus Laut Di Muara Sungai Loji, Pekalongan. Indonesia Journal of Oceanography, p. 22.
Pemerintah, 2010. Pedoman Pelaksanaan Konstruksi Bangunan Pengaman Pantai. Jakarta: Kementerian Pekerjaan Umum.
Pokaton, K. Y., Tawas, H. J., Jasin, M. I. & Mamoto, J. D., 2013. Perencanaan Jetty di Muara Sungai Ranoyapo Amurang. Jurnal Sipil Statik, 1(6), pp. 434-443.
Pratama, D. P., Atmodjo, W. & Wirasatya, A., 2023. Pengaruh Arus Sejajar Pantai (Longshore Current) Terhadap Proses Perubahan Garis Pantai di Pantai Marunda, Jakarta Utara. Indonesia Journal of Oceanography, 5(2), pp. 108-117.
Riandi, I., Ikhsan, M. & Amir, A., 2015. Perencanaan Ulang Jetty Di Muara Batu Putih Meulaboh. Jurnal Teknik Sipil Fakultas Teknik Universitas Teuku Umar, 1(1), pp. 97-197.
Soewarno, 1995. Hidrologi (Aplikasi Metode Statistik untuk Analisa Data). Jilid 1 ed. Bandung: N O V A.
Sujatmoko, B. ,. S. C. D. d. S. M., 2020. Analisa Statistika Untuk Curah Hujan Harian Pada DAS Kampar Berdasarkan AIC (Akaike Information Criterion). 29 5.p. 3.
Supriyadi, E., Siswanto & Pranowo, W. S., 2018. Analisis Pasang Surut Di Perairan Pameungpeuk Belitung, dan Sarmi Berdasarkan Metode Admiralty. Jurnal Meteorologi dan Geofisika, 19(1), pp. 29-38.
Syamsudin, Yuwono, N., Hoedhijatmoko & Riandini, F., 2004. Perbaikan Muara Sungai dengan Jeti. In: Pedoman Konstruksi dan Bangunan. s.l.:Departemen Permukiman dan Prasarana Wilayah, pp. 1-38.
Triatmodjo, B., 1999. Teknik Pantai. 5 ed. Yogyakarta: Beta Offset.
Triatmodjo, B., 2006. Perencanaan Bangunan Pantai. 2nd ed. Yogyakarta: Beta Offset.
Trusina, et al., 2023. Studi Perencanaan Jetty pada Muara Pembuangan Air (Stormwater Outfall) di PT Perta Arun Gas, Lhokseumawe. Jurnal Teknik Sipil, 15(2), pp. 36-46.
Werdi, N. M. K. & Eryani, I. G. A. P., 2020. Alternatif Perencanaan Jetty di Muara Tukad Pangi Kabupaten Badung. PADURAKSA, 9(1), pp. 102-112.
Wulandari, S. J. et al., 2022. Perbandingan Penerapan Hasil Metode Admiralty dan Least Square untuk Peramalan Pasang Surut di Selat Bintan, Kepulauan Riau. Jurnal Kelautan, 15(3), pp. 258-269.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Jurnal Infrastruktur

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.










