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Journal : Forum Pasca Sarjana

One major river flowing through Bekasi City is Bekasi river. Total extent of the Bekasi watershed is about 39.045 ha, in 2002 with rainfall of 250 mm for 8 hours caused about 138 ha flooded in residents area for 2-3 days in Bekasi City, more extremely in 2005 with rainfall only 127 mm  for 6 hours caused about 164 ha flooded in residents area for 3 days.  This evidence showed that flood problem in Bekasi City is become worse, and seem to be more horrifying in the future. Therefore, the flood pro Trihono Kadri; Naik Sinukaban; Hidayat Pawitan; Suria Darma Tarigan
Forum Pasca Sarjana Vol. 34 No. 1 (2011): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

One major river flowing through Bekasi City is Bekasi river. Total extent of the Bekasi watershed is about 39.045 ha, in 2002 with rainfall of 250 mm for 8 hours caused about 138 ha flooded in residents area for 2-3 days in Bekasi City, more extremely in 2005 with rainfall only 127 mm  for 6 hours caused about 164 ha flooded in residents area for 3 days.  This evidence showed that flood problem in Bekasi City is become worse, and seem to be more horrifying in the future. Therefore, the flood problem needs an extremely great attention.  The objectives of the research is (1) analysis watershed condition; (2) analysis of the causes of flood over Bekasi City from the perpective of hydrology and hydraulic; (3) plan of Bekasi watershed management to reduce flood risk in Bekasi City.  To obtain the purposes of this research, the method of analysis is devided into four main subjects: (1) analysis of watershed condition using SCS method; (2) hydrology analysis using hydrology modeling HEC-HMS; (3) river flow capacity using hydraulic modeling HEC-RAS and (4) plan of scenarios to reduce flood risk.  There are four scenarios to overcome the flood problems: (1) similarly with government plan 2010;(2) managing Bekasi watershed area with conservation tillage; (3) build water retarded structure entire of  watershed and;(4) combination of second and third scenarios.  The research results shown that river flow capacity only 462 m3/s is not enough to flow the discharges, otherwise the land use is change and increasing the run off in upstream.  Based on the problems, it is expected to overcome the flood problem by managing Bekasi watershed area with conservation tillage and build water retarded structure.  It will reduce 28.58% of the discharge run off in 2020.   Key words: flood, land use changing, watershed management
Co-Authors . Asisah . Hikmatullah . HIKMATULLAH Afri Fajar Agus Setiyono Agus Wahyudi AH. Maftuh Hafidh Zuhdi Ai Dariah Alim, Nurmaranti Andria Harfani Qalbi Aries Suharso Ario Damar Asisah, . Asyhari, Adibtya Atang Sutandi Austin Ullyta Baba Barus Bambang Dwi Dasanto Bambang Hendro Trisasongko Bandung Sahari Bejo Slamet Boedi Tjahjono Budi Kartiwa Budi Kuncahyo Budi Nugroho Bunasor Sanim Cahyo Wibowo Darda Effendi Dede Sulaeman Dede Sulaeman, Dede Desi Nadalia Despry Nur Annisa Ahmad, Despry Nur Annisa Dodik Ridho Nurrochmat Dudung Darusman Dwi P T Baskoro Dwi Putro Tejo Baskoro Dyah Retno Panuju Enni Dwi Wahjunie Enni Dwi Wahyunie Erizal , ERNA SURYANI Erwin Hermawan Evy Damayanthi Fadhlullah Ramadhani Fajar Nugraha Faqihna Pidin Fata, Yulia Amirul Fatoni, Arif Fitriani Hayati Gangga, Adi Gunadi Firdaus Haki Yusdinar Hari Agung Haris Syahbuddin Harisson, Rhett D. Hasim Hefni Effendi Hendrayanto . Hengky Wijaya Hery Widijanto Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan I Nengah Surati Jaya Idqan Fahmi Iin Ichwandi Imas Sukaesih Sitanggang IPB, DGB Irdika Mansur Irmadi Nahib Irwan Irwan Ishak Yassir ISKANDAR ZULKARNAEN SIREGAR Jamhari Jamhari Jepri, Kristoporus kartika triasary Kerstin Wiegand Kiki Rishki Ananda Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono La Baco S Laksono Trisnantoro Lala M Kolopaking Latief Mahir Rachman Lutfy Abdulah M Agus Setiadi M. Sri Saeni M. Yanuar J. Purwanto Ma'mun Sarma Mahardika, Rabbirl Yarham Mahendra Harjianto Mahendra Harjianto Mariana Lusia Resubun Mariana Lusiana Resubun Marimin , Marisa Dwi Putri Meilasari, Nabilla Muhammad Buce Saleh Muhammad Yanuar J. Purwanto Nahrowi Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Najla Anwar Fuadi Naro Pandapotan Pasaribu Nevky Emiraj Saputra Nicko Widiatmoko Novia Mustikasari Nurdiyanto Agung Prasetya Nurlaila Mubarokah Nurmaranti Alim Oktariza, Wawan Omo Rusdiana Oteng Haridjaja Oteng Haridjaja Oteng Haridjaja Patri, Syiskhaeka Prasetya, Nurdiyanto Agung Pungkas Syahadat Purwanto, Yanuar Jarwadi Purwiyatno Hariyadi Qalbi, Andria Harfani Ravelle, Adzan Pandu Reni Kusumo Tejo Reyna Prachmayandini Reza Hanjaya Rikky Mulyawan Rima Purnamayani Rudolf Kristian Tukayo Saiful Akhyar Lubis Sakti, Harry Hardian Santikayasa, I Putu Santun R.P Sitorus Santun R.P. Sitorus Sarif Robo Selamet Kusdaryanto Silalahi, Mangarah Sri Purwaningsih, Sri Sudradjat Sudradjat Sudradjat Sumiati Sunarti Sunarti Sunarti Sunarti Suprihatin Suprihatin Surya Cipta Ramadhan Kete Suryanto Suryanto Syafrani Syafrani Takeshi Katsumi Tania June Trihono Kadri Tukayo, Rudolf Kristian Ulfah Juniarti Siregar Ulfah Sarach Sheftiana Untung Sudadi Veybi Djoharam Vinni Lovita Widiatmaka Widiatmaka Widiatmaka Widya Ulfah Utami Wiwin Ambarwulam Yandra Arkeman Yayat Hidayat Yudha Kristanto Yulia Amirul Fata Yunita Lisnawati Yuri Ardhya Stanny Yusdinar, Haki Yustika, Rahmah Dewi Yusuf, Sri Malahayati