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All Journal IPTEK The Journal for Technology and Science Jurnal Teknik Sipil KERN Jurnal Teknik Pengairan: Journal of Water Resources Engineering Rekayasa Sipil REKAYASA Semesta Teknika Jurnal Rekayasa Sipil dan Lingkungan Teras Jurnal Civil and Environmental Science Journal (CIVENSE) Jurnal Aplikasi Teknik Sipil Jurnal Rekayasa Sipil Borneo Engineering: Jurnal Teknik Sipil Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan PEKAT : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi dan Rekayasa Sumber Daya Air Geosfera Indonesia
Wiwik Yunarni Widiarti
Jurusan Teknik Sipil Fakultas Teknik Universitas Jember
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Mathematics Physics Public Health Social Sciences Transportation Other

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Perhitungan Waste Material Pada Proyek Pembangunan Gedung ICU RS Ngudi Waluyo Blitar: Calculation of Waste Material In The ICU Building Construction Project Waluyo Blitar Hospital Rinengga, Bintang Ardi; Trisiana, Anita; Widiarti, Wiwik Yunarni
Jurnal Rekayasa Sipil dan Lingkungan Vol. 8 No. 1 (2024): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v8i1.46172

Abstract

Abstract Material waste can have a negative impact on building construction projects, especially in the budgeted cost sector. The use of BIM software can help in calculating and optimizing reinforcement work so that excessive material waste does not occur. In this research, building modeling will be carried out using Revit software. The output achieved in processing this data is quantity take-off. The calculation of remaining rebar material in this research uses the Microsoft Excel software program with the aim of finding out the number of rebar mills needed and the combination of cuts in one rebar mill. Structural modeling using BIM Revit aims to determine the shape of the structure in 3D visualization. This visualization makes it easier to model reinforcement, bends, and iron connections. From the modeling results, the take-off amount is obtained. From the results of the Revit take-off quantity, the length of the rod used as a pattern for cutting steel rods 12 meters long is obtained. Next, an analysis of the level of waste and waste costs is carried out. In the construction of the ICU building at Ngudi Waluyo Blitar Regional Hospital, the volume of material for strengthening work was 3,058.57 meters with a total weight of 1,954.88 kg and a waste cost value of IDR 18,888,958. The residual iron content of Ø6 was 2.72%, D8 was 0.48%, D10 was 0.04%, D13 was 4.43%, D16 was 0.35%, and D19 was 1.08%. Keywords: Waste material, BIM, quantity take off, waste level and waste cost. Abstrak Waste material dapat memberikan dampak buruk pada proyek pembangunan gedung, terutama pada sektor biaya yang dianggarkan. Penggunaan software BIM dapat membantu dalam perhitungan dan optimalisasi pada pekerjaan penulangan sehingga tidak terjadi waste material yang berlebih. Pada penelitian ini akan dilakukan pemodelan bangunan dengan Software Revit. Output yang dicapai dalam pengolahan data ini adalah Quantity Take Off. Perhitungan waste material pada tulangan besi dalam penelitian menggunakan program bantu software microsoft excel dengan tujuan untuk mengetahui jumlah los besi yang dibutuhkan dan kombinasi pemotongan dalam satu los besi.Pemodelan struktur menggunakan BIM Revit bertujuan untuk mengetahui bentuk struktur dalam visualisasi 3D. Visualisasi ini mempermudah dalam pemodelan tulangan, tekukan, dan sambungan besi. Dari hasil pemodelan didapatkan quantity take off . Dari hasil quantity take off Revit, maka akan didapatkan bar length yang digunakan sebagai pola pemotongan los besi 12 meter. Selanjutnya dilakukan analisa waste level dan waste cost.Pada konstruksi di gedung ICU RS Ngudi Waluyo Blitar volume waste material pada pekerjaan pembesian sebesar 3.058,57 meter dengan total beratnya adalah 1.954,88 kg dengan nilai waste cost sebesar Rp 18.888.958. Adapun waste level pada besi Ø6 sebesar 2,72%, D8 sebesar 0,48%, D10 sebesar 0,04%, D13 sebesar 4,43%, D16 sebesar 0,35%, D19 sebesar 1,08%. Kata kunci: Waste material, BIM, quantity take off, waste level dan waste cost.
Speed, Density, and Crash Relationship in Urban Arterial Roads Kriswardhana, Willy; Sulistyono, Sonya; Widiarti, Wiwik Yunarni; Rahmawaty, Tiara Ayu
Civil and Environmental Science Journal (CIVENSE) Vol. 6 No. 2 (2023)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/civense.v6i2.401

Abstract

Vehicle speed has an essential role in the occurrence of traffic accidents. Increasing the number of vehicles operating on the road will further increase the risk of traffic accidents because it is not balanced with discipline in driving. This study's purpose is to analyze the relationship between speed and traffic accidents that occurred in Gadjah Mada and Hayam Wuruk Road, Jember, through several variations of calculations. The independent variables used are average speed and 85th percentile speed and density, while the dependent variable used is the accident rate. The analysis used is a correlation test that determines the level of closeness of the relationship between the two variables and a regression test that helps estimate the relationship between the two variables through a regression equation model that will be selected based on conditions in the field. The results of this study indicate that lower speed is associated with a lower accident rate. Meanwhile, lower vehicle density leads to an increase in the accident rate. Speed management to improve traffic safety in Indonesia is needed. Direction for future research is presented.
Analisis Prioritas Penanganan Kerusakan bendung di DAS Mayang Kabupaten Jember Syahya, Afriq Fadian; Widiarti, Wiwik Yunarni; Hidayah, Entin
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 19 No. 1 (2023)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.19.1.1-13.2023

Abstract

Bertambah besarnya tanggung jawab pemerintah daerah menuntut semakin banyak jumlah anggaran yang harus dikeluarkan dalam pembangunan. Hal ini merupakan tantangan dalam melaksanakan pembangunan yang berkelanjutan dan berkeadilan. Salah satu tunggang jawab tersebut adalah melakukan penanganan terhadap kerusakan bangunan utama irigasi yang masing masing memiliki manfaat, tingkat kerusakan, dan keterbatasan yang berbeda beda, sehingga penentuan prioritas rehabilitasi sulit untuk dilakukan. Studi ini bertujuan untuk menentukan prioritas penanganan bendung berdasarkan analisis tiga kinerja yang meliputi kondisi prasarana, ketersediaan air, dan luas area irigasi. Penilaian ini dilakukan pada lima bendung yang berurutan pada aliran sungai utama DAS Mayang. Proses pengambilan data dilakukan dengan penyebaran kuisioner kepada 9 orang dari Dinas PU Pengairan Jember dan 1 orang dari UPT Pengairan Mayang. Sedangkan data ketersediaan air dan luas area irigasi didapatkan dari Dinas PU Pengairan Jember. Penentuan bobot kinerja bendung dilakukan menggunakan metode AHP (Analytical Hierarchy Process). Penilaian tingkat kerusakan bendung dilakukan dengan pengamatan langsung dilapangan yang mengacu pada Permen PU No.12/PRT/M/2015. Hasil pembobotan kinerja bendung menunjukan bahwa kondisi prasarana 49%, ketersediaan air 42%, dan luas area Irigasi 9%. Bendung Tegal Waru merupakan prioritas utama dalam penanganan kerusakan.
Effects of Land Use Change on Land Erosion and Land Critical Level Using GIS in the Mayang Watershed Mohamad Andhika Rafif; Wiwik Yunarni Widiarti; Entin Hidayah; Saifurridzal Saifurridzal; Mokhammad Farid Ma'ruf
Geosfera Indonesia Vol. 9 No. 2 (2024): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v9i2.39670

Abstract

The increasing population in an area often triggers heightened development, leading to diminished land availability and subsequent land conversion. This transformation, predominantly observed in agricultural and plantation lands, is driven by the need for residential areas. However, continuous land use changes contribute to erosion, a natural process wherein soil is transported, leading to sedimentation and eventual flooding. This study aims to identify critical areas prone to erosion and land degradation. To address this, we used the Universal Soil Loss Equation (USLE) method for erosion prediction, leveraging its simplicity and accuracy. This study focuses on the Mayang watershed in East Java, utilizing a combination of USLE, spectral index modeling, and Geographic Information System (GIS) techniques to estimate soil erosion and land criticality. By integrating methodologies and analyzing data spanning from 2011 to 2021, the study reveals shifts in erosion danger levels and land use patterns. While regions with low erosion remained stable, areas with medium to high erosion declined, yet those with very high erosion exhibited a worrisome increase. Changes in land use, including forest loss and urban expansion, underscore the ecological shifts exacerbating erosion hazards. The study emphasizing the necessity for targeted conservation strategies and comprehensive land management plans to mitigate erosion risks and preserve environmental sustainability.
Pengaruh Hutan Mangrove Terhadap Reduksi Gelombang di Pantai Bama Kabupaten Situbondo dengan Pemodelan Menggunakan Delft3D Imanda, Regita Ramadhani; Wiyono, Retno Utami Agung; Widiarti, Wiwik Yunarni
Rekayasa Vol 18, No 1: April 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i1.26555

Abstract

Mangrove forest in Bama Beach is one of the mangrove forests in Indonesia. Mangroves in the Bama Beach area have a function to protect various ecosystems around it from damage due to abrasion or sedimentation. Bama Beach, whose status is still in the Baluran National Park area and a tourist spot that has a beautiful charm, needs to be protected from wave damage so that wave reduction modeling research is carried out on the influence of mangrove forest width using Delft3D software. Modeling was carried out to obtain the value of energy reduction and wave height due to the presence of mangrove forests with different widths. The modeling results found that the highest significant wave height occurred on July 16, 2023 at 12:00 WIB. Mangrove forests with a thickness of 125 m can reduce wave height by 30.031% and wave energy by 48.263%. Mangrove forests with a thickness of 110 m can reduce up to 15.988% of wave height and 31.268% of wave energy. Mangroves with a thickness of 37 m can reduce up to 4.049% of wave height and 10.940% of wave energy.
Benefit-Cost Analysis of Bioretention for Suburban Drainage Load Reduction Induced by Surface Runoff Putri, Fidyasari Kusuma; Robbani, Hilma Wasilah; Pranantya, Vanadani; Widiarti, Wiwik Yunarni; Wiyono, Retno Utami Agung
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 2 (2025): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i2.1558

Abstract

Suburban areas with predominantly residential land use and low soil infiltration rates are highly vulnerable to surface runoff and local flooding. This study examines the effectiveness and economic performance of bioretention systems as a runoff management solution in the Wonojati and Jenggawah areas, Jember Regency. Hydrological simulations were conducted using SWMM 5.2 software for two intervention scenarios, namely the application of bioretention in 10% and 20% of the subcatchment areas. The effectiveness of the system was evaluated based on runoff volume reduction, while the economic aspect was assessed using the Benefit-Cost Ratio (BCR) approach. The simulation results showed that the system reduced runoff by 13.6% in Plan 1 and 17.4% in Plan 2. However, BCR values of 0.014 and 0.022, respectively, indicate that the annual financial benefits are not sufficient to cover the system’s annualized costs. These findings highlight the need for alternative approaches that are more economically efficient. The use of decentralized LID systems such as rain barrels is considered more adaptive for dense residential areas and is recommended as a complementary solution to enhance the resilience of drainage systems in flood-prone suburban regions.
COMPARISON OF SCS UH AND CLARK METHODS FOR RAINFALL–RUNOFF MODEL IN DELUWANG WATERSHED: Perbandingan Metode SCS UH dan Clark UH dalam Pemodelan Hujan Aliran pada DAS Deluwang Arifin, Muhammad; Hidayah, Entin; Widiarti, Wiwik Yunarni
Jurnal Rekayasa Sipil dan Lingkungan Vol. 2 No. 01 (2018): JURNAL REKAYASA SIPIL DAN LINGKUNGAN
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.524 KB) | DOI: 10.19184/jrsl.v2i01.6845

Abstract

Deluwang River water source is widely used for the needs of irrigation, plantation, and the fulfillment of domestic life. Given the importance of the role of water in Deluwang watershed, then he had to do the management of watershed. The proper management of watershed hydrological modeling requires accurate. Rainfall-runoff using HEC-HMS applications. This research aims tocomparison 2 methods in direct runoff. Therefore this study uses two methods, namely SCS Unit Hydrograph method and method of Clark Unit Hydrograph. On the calibration process using daily rainfall data and daily debit year 2006, whereas in the validation process using daily rainfall data and daily debit years 2007 to 2012. The results of the calibration using Clark Unit Hydrograph method better than using SCS Unit Hydrograph method with Nash's value 0,700 than 0,539. While the results of the validation of modeling using Clark Unit Hydrograph method is better than using SCSUnit Hydrograph method with a value of Nash 0,541 than 0,368. Sungai Deluwang sumber airnya banyak dimanfaatkan untuk kebutuhan irigasi, perkebunan, serta pemenuhan kehidupan rumah tangga. Mengingat pentingnya peranan air pada DAS Deluwang, maka perlu dilakukannya pengelolaan DAS. Pengelolaan DAS yang tepat membutuhkan pemodelan hidrologi yang akurat. Pemodelan hujan aliran menggunakan aplikasi HEC-HMS. Penelitian ini bertujuan membandingkan 2 metode yang terdapat pada direct runoff. Oleh karena itu penelitian ini menggunakan dua metode, yaitu metode SCS Unit Hydrograph dan metode Clark Unit Hydrograph. Pada proses kalibrasi menggunakan data curah hujan harian dan debit harian tahun 2006, sedangkan pada proses validasi menggunakan data curah hujan harian dan debit harian tahun 2007 sampai 2012. Hasil kalibrasi menggunakan metode Clark Unit Hydrograph lebih bagus dibandingkan menggunakan metode SCS Unit Hydrograph dengan nilai Nash 0,700 berbanding 0,539. Sedangkan hasil validasi pemodelan menggunakan metode Clark Unit Hydrograph lebih bagus dibandingkan menggunakan metode SCS Unit Hydrograph dengan nilai Nash 0,541 berbanding 0,368.
OPTIMIZATION OF WATER ALLOCATION FOR NEW IRRIGATION AREAS USING DYNAMIC PROGRAMS (CASE STUDY BANGOREJO REGENCY OF BANYUWANGI DISTRICT): Optimalisasi Alokasi Air untuk Daerah Irigasi Baru Menggunakan Program Dinamik (Studi Kasus Wilayah Pelayanan Bangorejo Kabupaten Banyuwangi) Setiawan, Bima; Widiarti, Wiwik Yunarni; Hasanuddin, Akhmad
Jurnal Rekayasa Sipil dan Lingkungan Vol. 2 No. 02 (2018): JURNAL REKAYASA SIPIL DAN LINGKUNGAN
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.564 KB) | DOI: 10.19184/jrsl.v2i02.8368

Abstract

New irrigation area located in Bangorejo Sub-district of Banyuwangi Regency is an irrigation building with an area of ± 5981 Ha of paddy field originating from Karangdoro dam in Tegalsari Sub-district. The Karangdoro dam itself has an area of ± 16,165 hectares of rice fields divided into three service area: Pesanggaran (4381 Ha), Cluring (5945 Ha), and Bangorejo (5981 Ha). This research is focused on New irrigation service area Bangorejo because of the availability of water in the area during the dry season often experience shortage. Therefore, optimization efforts are made using the dynamic program to determine the water requirements for each plant, the optimum planting pattern, the area of cultivable land and the maximum profit. With the application of the dynamic program can be obtained irrigation water requirement, that is enough year when MH = 33,11 m3 / s, MK I = 30,77 m3 / s, MK II = 12,32 m3 / s, normal year at MH = 24 M3 / s, MK I = 29.51 m3 / s, MK II = 17.87 m3 / s, low year at MH = 35.8 m3 / s, MK I = 30.47 m3 / s, MK II = 18,76 m3 / s, and dry year at MH = 63,86 m3 / s, MK I = 33 m3 / s, MK II = 19 m3 / s. Profits derived from the discharge flowing in the New Irrigation area is Rp. 88,818,984,562.42 with an increase of 31.35% in the low year, Rp. 65.318.263.206,83 with an increase of 56,08% for dry year, Rp. 90,239,784,195,27 with 31,87% increase for enough year, Rp. 87.904.986.310,93 with an increase of 23.47% for the normal year. Daerah irigasi Baru yang terletak di Kecamatan Bangorejo Kabupaten Banyuwangi merupakan bangunan irigasi dengan luasan baku sawah ± 5981 Ha yang berasal dari Bendung Karangdoro di Kecamatan Tegalsari. Bendung Karangdoro sendiri memiliki luasan baku sawah ±16165 Ha yang dibagi menjadi tiga wilayah pelayanan, yaitu: Pesanggaran (4381 Ha), Cluring (5945 Ha), dan Bangorejo (5981 Ha). Penelitian ini difokuskan pada daerah irigasi Baru yang berada di wilayah pelayanan Bangorejo karena ketersediaan air di daerah tersebut pada musim kemarau sering mengalami kekurangan. Oleh karena itu dilakukan upaya optimasi menggunakan program dinamik untuk mengetahui kebutuhan air untuk masing-masing tanaman, pola tata tanam yang optimum, luas lahan yang bisa ditanami dan keuntungan yang maksimum. Penerapan program dinamik dapat diperoleh kebutuhan air irigasinya, yaitu tahun cukup pada saat MH= 33,11 m3/det, MK I= 30,77 m3/det, MK II= 12,32 m3/det, tahun normal pada saat MH= 24 m3/det, MK I= 29,51 m3/det, MK II= 17,87 m3/det, tahun rendah pada saat MH= 35,8 m3/det, MK I= 30,47 m3/det, MK II= 18,76 m3/det, dan tahun kering pada saat MH= 63,86 m3/det, MK I= 33 m3/det, MK II= 19 m3/det. Keuntungan yang diperoleh dari debit yang dialirkan pada daerah Irigasi Baru adalah sebesar Rp. 88.818.984.562,42 dengan peningkatan 31,35 % pada tahun rendah, Rp. 65.318.263.206,83 dengan peningkatan 56,08 % untuk tahun kering, Rp. 90.239.784.195,27 dengan peningkatan 31,87 % untuk tahun cukup, Rp. 87.904.986.310,93 dengan peningkatan 23,47 % untuk tahun normal.
Geolistrik Konfigurasi Wenner Untuk Pendugaan Air Tanah di Perumahan Grand Puri Bunga Nirwana Jember Kusworowati, Eri; Halik, Gusfan; Widiarti, Wiwik Yunarni
Teras Jurnal : Jurnal Teknik Sipil Vol. 10 No. 1 (2020): Volume 10 Nomor 1
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (919.084 KB) | DOI: 10.29103/tj.v10i1.245

Abstract

Abstrak Air merupakan kebutuhan pokok bagi manusia. Air tanah salah satu alternatif sebagai sumber air bersih. Penelitian ini bertujuan untuk menyelidiki potensi air tanah di Perumahan Grand Puri Bunga Nirwana, Jember. Penelitian menggunakan metode geolistrik dengan konfigurasi wenner. Panjang lintasan akuisisi data 410 meter. Jarak spasi antar elektroda (a) yang digunakan yaitu 5 m, 10 m dan 15 m. Pengulangan data (n) dilakukan sebanyak 6 kali pada masing-masing jarak spasi antar elektroda. Inversi model menggunakan software Res2Dinv. Hasil inversi berupa citra penampang lapisan bawah tanah. Nilai resistivitas yang diperoleh 0,55-371 „¦m. Potensi air tanah berada di kedalaman 38-51,8 m. Akuisisi data terletak pada koordinat 8º10,2940 S dan 113º447,20 E. Lapisan akuifer tergolong akuifer produktif sedang. Debit akuifer diprediksi kurang dari 5 liter/detik. Kata kunci: geolistrik, wenner, resistivitas, akuifer Abstract Water is a primary human need. Groundwater is an alternative source of fresh water. This research aims to investigate the potential of groundwater at the Grand Puri Bunga Nirwana Housing, Jember. The study used the geoelectric method with a Wenner configuration. The acquisition data length is 410 meters. The distance between the electrodes used 5 m, 10 m and 15 m. Repeating data 6 times at each spacing between electrodes. Inversion of the model using Res2Dinv software. The inversion results in the form of a cross-sectional image of the underground layer. The resistivity value obtained 0.55-371 Ωm. The depthof groundwater potential is 38-51.8 m. Coordinates of data acquisition are 8º10.29'40 'S and 113º44'7.20' 'E. Aquifer layers are classified as medium productive aquifers. The predicted discharge of aquifer is less than 5 liters/second. Keywords: geoelectric, wenner, resistivity, aquifer
Prediksi Laju Sedimentasi Pada Sungai Jatiroto Cahyani, Hajar Crisia; Hidayah, Entin; Wiyono, Retno Utami Agung; Halik, Gusfan; Widiarti, Wiwik Yunarni
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 17 No. 1 (2021)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.17.1.64-71.2021

Abstract

Erosi dapat menyebabkan terjadinya sedimentasi di sungai. Sedimentasi yang terjadi secara terus-menerus dapat mengakibatkan sungai menjadi dangkal dan mengurangi kapasitas sungai. Sedimen akan mengendap pada bagian tertentu di sepanjang aliran sungai yang tidak mampu terangkut bersama dengan aliran sungai. Sungai Jatiroto merupakan sungai yang membatasi Kabupaten Lumajang dan Kabupaten Jember. Sungai Jatiroto dimanfaatkan untuk keperluan irigasi pada kecamatan Jatiroto dan Kecamatan Rowokangkung. Penyebab dari sedimentasi adalah perubahan tata guna lahan ataupun erosi yang dilakukan oleh sungai itu sendiri. Pemodelan transpor sedimen oleh HEC-RAS bertujuan untuk mengetahui laju sedimen yang terbawa oleh sungai. Pada pemodelan ini dilakukan dua analisis, yaitu analisis hidrolika dan analisis transpor sedimen. Tahap pertama, analisis hidrolika menggunakan debit unsteady, parameter Manning (n) dan koefisien ekspansi dan kontraksi. Kalibrasi model dilakukan dengan cara perbandingan tinggi muka air yang menghasilkan nilai determinasi R2 sebesar 0,9586, nilai RMSE sebesar 0,39 dan masuk dalam kategori baik. Tahap kedua, analisis sedimentasi menggunakan debit quasi-unsteady dan diameter butiran. Fungsi pengangukatan sedimen yang cocok pada pemodelan ini adalah Laursen (Field) dengan laju sedimen sebesar 256,341 m³/tahun. Adapun laju sedimentasi di lapangan dilakukan dengan membandingkan cross section lama dengan yang baru yaitu 289,24  m³/tahun. Uji keandalan (validasi) model dilakukan dengan membandingkan hasil pemodelan dengan data observasi yang didapatkan dari hasil perhitungan volume pengendapan pada cross section. Didapatkan hasil uji keandalan sebesar 88%.
Co-Authors Adam Rifqi Ammarulsyah Afriq Fadian Syahya Ahmad Rizza Lufafi Ainunisa, Diah Akhmad Hasanuddin Anik Ratnaningsih Anita Trisiana, Anita Aqiel Iqbal Farrossandy BIMA SETIAWAN Cahyani, Hajar Crisia Denok Nurul Intifadah Donny Harisuseno Dwi Nurtanto Dyah Ayu Intanasya Putri Eka Patriyandi Oktavian Entin Hidayah Gusfan Halik Gusfan Halik Hajar Crisia Cahyani Hernu Suyoso Imanda, Regita Ramadhani Kurnia Sari, Faradila Kusworowati, Eri Mohamad Andhika Rafif Mokhammad Farid Ma'ruf Muhammad Amrulloh Muhammad Arifin Paksitya Purnama Putra Putri, Dyah Ayu Intanasya Putri, Fidyasari Kusuma Putu Adetya Pariartha Radiah Ulil Absari Rahmawaty, Tiara Ayu Ramadhani, Destia Sefi Retno Utami Agung Wiyono Rinengga, Bintang Ardi Ririn Endah Badriani, Ririn Endah Rivaldi Dwiky Agustian Rizky Akbar Irhamullah Tunggal Robbani, Hilma Wasilah Saifurridzal, Saifurridzal Sonya Sulistyono Sri Wahyuni Syahya, Afriq Fadian Tiara Ayu Rahmawaty Vanadani Pranantya Willy Kriswardhana Yuli Mariati