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Journal : Journal of Social Research

Evaluation of the Jlantah Dam Inflowing Area as a Reference af Efficiency Towards Implementation Time and Cost Sunawilalodra, Gaga; Maulana, Mahendra Andiek; Rohman, Arif
Journal of Social Research Vol. 2 No. 8 (2023): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v2i8.1322

Abstract

Jlantah Dam is located on the Jlantah River, Karanganyar Regency, Central Java Province. The construction of the Jlantah dam serves irrigation needs, raw water supply, flood reduction, and tourism. In the implementation of the construction, there are problems with land acquisition in the reservoir inundation area. This problem will affect the time and cost of implementing the construction of the Jlantah Dam. Therefore, it is necessary to carry out a simulation to determine the optimum reservoir volume of the reservoir that can fulfill the benefits of the dam, the implementation of which is not hampered by land acquisition in the inundation area and is efficient in terms of time and cost of implementation. In determining the inundation area of the reservoir, a capacity curve based on the topographic map is used to determine the area and volume of the reservoir at each elevation, then a simulation is performed to calculate at what elevation the reservoir can fulfill its planned utilization. The simulation was carried out with 2 (two) alternative conditions, namely the conditions at the crest elevation + 685 and the crest elevation + 682. From these two alternatives, it can be seen the reliability of the reservoir for each condition. The results of the evaluation obtained from the two mercury elevations have the greatest benefit value at + 685 elevations with a reservoir reliability value of 97.22%, a BCR value of 1.218, and an IRR value of 5.88% with a total cost of Rp. 1,750,818,179,096.
Co-Authors Abdul Aziz Adam Irwansyah Fauzi Adi Sutrisno Aditia Syaprillah, Aditia Ahmad Zein, Yahya ANWAR, DEDY Anwar, Muhammad Saiful Ardani, Nesya Hafiza Ariefa Efianingrum Aris Rinaldi Asri Widowati Atmojo, Aulia Aynaz Lotfata Budiningsih, Chatarina Asri Chalermsin, Panupong Choirul Amin Cipto Budy Handoyo Danardono, Danardono Dewi, Rany Puspita Dikpride Despa Dwi Bayu Prasetya Ebni Sholikhah Efri Roziaty Eka Putri Handayani Eny Nur Aisyah Fajar Hidayat Farida Hanum Fatmawati , Anisa Fauzi, Adam Irwansyah Febriyanti, Novi Ferdian Ramos, Ferdian Fikriyah, Vidya N. Firmansyah Firmansyah Gusniwati , Hamim Zaky Hadibasyir Hardika Hardika, Hardika Harun Harun Hediansah, Disa Henny Dwi Bhakti Husin Ali, Muhammad Hutwan Syarifuddin Irwansyah Fauzi, Adam Jasminarni Joko Sri Sukardi, Joko Sri Jumadi, J Kemala, Ayu Kuswaji Dwi Priyono Kuswandi, Mar'atussholihah Lotfata, Aynaz LUSILA ANDRIANI PURWASTUTI, LUSILA ANDRIANI Mami Hajaroh Marthin - Masruroh, Heni Maulana, Mahendra Andiek Mayasarokh, Mira MUBARAQ, FAATHUR MUHAMMAD ULIN NUHA Muhammad Ulin Nuha Nainggolan, Ellyas Alga Nawaz, Muhammad Neliyati, Neliyati Nesya Hafiza Ardani Nindya Swastika Nurul Mahruzah Yulia Perdana, Redho Surya Prakosa, Rizky Adha Prasetya, Dwi Bayu Purwastuti, Lusila Andiani Rachmadani, Fadhila Rahmad Nursyahidin, Rahmad Ramadhini, Meraty Redho Surya Perdana Rian Nurtyawan Riana Nurhayati Riyanto, Edi Rizki Farani Ruuhulhaq, Muhammad Saiful Sapriani Sapriani Saputra, Fajar Eka Saputri, Bela Sattar, Farha Shalih, Osmar Silviana, Arina Sitorus, Hanny Wahyuningtiyas Sunawilalodra, Gaga Surahman, Ence Suttrisno Syafruddin Syafruddin Trisma Jaya Saputra Trisya Septiana Triyani, Retno Ulin Nuha, Muhammad Wahyuni, Ety Wibowo, Yudha Gusti Widijantoro, Noor Yahya Ahmad Zein Yudanegara, Rizky Ahmad Zumaeroh -