Abstract. Wotgali Village is a slum area. The aim of the current research is to find out the performance of slum base infrastructure using Lakip (Government Agency Accountability Report) of KOTAKU (City without Slums) Program. The first step was performed by identifying the initial settlement (base line), then some treatments on the facilities and infrastructure (finish line), performance evaluation stages of the preparation, planning, implementation, and sustainability stages. The research used qualitative and quantitative approach. Qualitative measurement began with a numerical assessment of the results on the level of regional slum. In addition, quantitative data used the Lakip simulation using results of the KOTAKU program stage performance. Results of the initial condition reach value of 32%. It is categorized as slight slums with an average sectoral slum of 36.68%. Basic infrastructure development which has final technical reached 24% and is included in slight slum with an average sectoral of 27.50%. The performance of LAKIP Kotaku was in preparation phase 90.46% (very good performance), planning stage was 89.93% (very good performance), implementation stage was 90.25% (very good performance), sustainability stage was 85.21% (better performance). Thus, the achievement of KOTAKU program is 85.19% with a range of value of 80-90. The value is included as better performance result. Results of the analysis can be concluded that level of slum can be reduced to 19% (not slum) by creating some improvements to basic facilities and infrastructure. In the following year, involving Lakip Performance, the planning stage can be enhanced through community participation and active involvement.
Kawasan Perumnas Kota Cirebon sebenarnya dulu diperuntukan untuk tempat daerah resapan air, akan tetapi masyarakat tetap melakukan pembangunan di wilayah tersebut. Oleh karena itu sangat wajar sekarang kawasan tersebut tergenang banjir. Genangan yang terjadi di kawasan Perumnas merupakan hal yang cukup memprihatinkan karena hampir setiap musim penghujan datang selalu tergenang banjir. Data-data yang digunakan pada penelitian ini adalah data curah hujan (15 tahun), peta lokasi, dan data pengukuran laju resapan air di kawasan perumahan. Tujuan dari penelitian ini adalah menganalisa besarnya reduksi limpasan dari air hujan di lokasi penelitian, sehingga dapat mengurangi beban saluran drainase yang ada dan sebagai salah satu suplesi air tanah yang ada dilokasi penelitian. Tahapan olah data mencakup analisis hidrologi dengan mencoba beberapa metode dalam menentukan debit banjir rencana. Dari beberapa metode yang dicoba, maka dipilih Metode Gumbel. Hasil yang diperoleh dilakukan analisa hidrologi didapat curah hujan 2, 5 dan 10 tahun sebesar 0,0034 m3/det; 0,0046 m3/det dan 0,0053 m3/det untuk analisa geoteknik pada lokasi fasum didapat 14,25% lempung; 83.75% lanau dan 2% pasir dan untuk lokasi rumah warga didapat 24,60% lempung; 63,40% lanau dan 12% pasir dan dari 1 buah sumur resapan yang dibuat di lokasi fasum dapat mereduksi air limpasan sebesar 12,81 % untuk periode ulang 2 tahun, 9,47% untuk periode ulang 5 tahun dan 8,22% untuk periode ulang 10 tahun. Reduksi air limpasan dengan menggunakan sumur resapan diharapkan dapat mengurangi beban saluran drainase yang ada dilokasi penelitian, sehingga peluang genangan/banjir pada saat hujan tidak terjadi/berkurang.
Abstract. Darma Reservoir functions as a reservoir for irrigation, fisheries, and recreational and sports facilities. Currently, it only functions for irrigation and fish farming by floating net ponds. The development of floating net frameworks was so rapid that it conflicted with reservoir management. This study aims to determine the density of the floating net framework of the sedimentation conditions of the Darma Reservoir and to determine the development of the sedimentation rate of the Darma Reservoir in relation to the service life of the reservoir characterized by reduced dead storage. The first step was carried out by surveying the presence of the number of floating net cages, the distribution of the feed, the percentage of feed demand, the carrying capacity of the reservoir, then a topographic survey of the depth of the Darma reservoir to determine the capacity, rate and volume of sediment deposits. This study used quantitative approach, it began with distributing questionnaire forms and measuring the depth of the reservoir. The current condition of floating net cages is 4916 occupying 5.819% of the inundation area of 312.15 ha with an elevation of 712.50 m, while floating net cages are allowed according to the carrying capacity of Darma Reservoir waters amounting to 1,021. tons / harvest while the spawning pond is 3.483 tons/harvest. The volume of normal active storage for elevation 712.50 in 2020 is 28.086 million m3, while the volume of sediment deposits is 9.262 million m3 32.98%, the average sediment rate in the reservoir from 1988 to 2020 is 0.2894 million m3/year, while the sediment rate in catchment area Dam Dharma with an area of 23.5 km2 of 71.873 mm/year. Sedimentation in the Darma Reservoir has exceeded the limit of the base elevation of the reservoir, the elevation of the dead reservoir and the lowest elevation, but the reservoir is still functional. The planning life of the darma reservoir is up to 50 years, the suitability of the initial planning of operations in 1970 with operations until 2020.
The perumnas gunung area is one of the areas in the Larangan sub-district, Harjamukti Subdistrict, Cirebon City, whose drainage system greatly disturbs the activities of the population in Cirebon City because when heavy rain causes the high volume of water in the drainage so that it comes out to the highway and is very disturbing it can also cause congestion.To solve the problem of inundation and flooding, it requires maximum rainfall data, population density data and hydraulic data from direct observation at the research location. From the rainfall data, the intensity of the rainfall is calculated, then the standard deviation is calculated to get the return period value using the Gumble formula. From the calculation of the Return Period, the calculation of the flood discharge is carried out using a rational method and calculating the discharge of the existing channel. Calculation of the capacity of the existing channel discharge is carried out by calculating the discharge of rainwater and discharge of household wastewater.From the calculation of Hydrology and Hydraulics, the value of Rainfall Intensity is 46.632 mm / day, the overall channel discharge = 0.603 m3 / s, the calculation of the total discharge from household wastewater and rainwater discharge for the 2-year return period is 0.0076 m3 / s. . From the calculation results, the authors conclude that the dimensions of the existing canal can still accommodate the flow of rainwater and household wastewater. The solution to overcome flood inundation on Jalan Ciremai Raya, it is necessary to normalize the drainage channel so that the drainage channel can function properly.
Cibendung Weir comprised in the district of Banjarharjo Brebes Center Java, the located approximately less than 50 km from Cirebon and 40 km from Brebes Center Java, and exist some villages such as, Cikakak, Karang Maja, Tiwulandu Village in East and Tonjong, Singkup, Gandol in West. Cibendung Weir have duct the name is Induk Cibendung Weir or named D.I Jangkelok Hilir. At first, the water able to dilute more less 6677ha but in this time only more less 6349ha, the trouble is diversion of the use of land. This Cibendung Weir was built in the years 1901-1904. The irrigation areas of Cibendung Weir supply six kemantren such as
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