Main Article Content
Abstract
This research was made to find out the performance of primary canal and tapping constructions, also inquire the maintenance that should be done and prioritized in order to maintain the irrigation. Research method was conducted through direct observation to find out water discharge and primary canal dimensions and tapping constructions, also to inventory all of damage components. Secondary data was about dimensions and canal discharge plan,
rainfall data, and climatology. Climatology and rainfall calculation is used to calculate quantity of irrigation water needed. Then, this irrigation water will be used to calculate water discharge during farming season. Hydraulic calculation of primary canal and tapping construction was based on those water discharge value. Results of the research showed water discharge and dimension of primary canal and tapping constructionsat Air Ngalam can irrigate whole rice fields. Unfortunately, canal rifts and damage, and some of illegal tapping by farmers
around cause water distributing on each rice field unequal. In order to optimize Air Ngalam irrigation, it’s a must to make a sequence of action plans in highest priority, also maintenance works.
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DPU. 1980. Pedoman dan Kriteria Perencanaan Teknis Irigasi. Departemen Pekerjaan Umum Direktorat Jenderal Pengairan Proyek
Monitoring Pelaksanaan. Penerbit PU. Jakarta.
DPU. 1986. Perencanaan Jaringan Irigasi KP-01. Standar Perencanaan Irigasi, Departemen Pekerjaan Umum Direktorat Jenderal Pengairan.
Penerbit PU. Jakarta.
DPU. 2006. Peraturan Menteri Pekerjaan Umum Nomor : 39/Prt/M/2006:
Petunjuk Teknis Penggunaan Dana Alokasi Khusus Bidang Infrastruktur
Tahun 2007. Menteri Pekerjaan Umum Republik Indonesia. Jakarta.
Mawardi, E. 2010. Desain Hidraulik Bangunan Irigasi. Alfabeta, Bandung.
Prachmayandini, R. 2012. Perhitungan Evapotranspirasi Menggunakan Citra Modis (Studi Kasus: Das Cimadur, Banten). Jurnal Departemen Ilmu
Tanah Dan Sumber Daya Lahan Fakultas Pertanian Institut Pertanian
Bogor. Bogor.
Purwanto., Ikhsan, J. 2006. Analisis Kebutuhan Air Irigasi Pada Daerah
Irigasi Bendung Mrican 1. Jurnal Teknik Sipil Universitas Muhammadiyah Yogyakarta, Vol.9, No.1 Mei.
Sidharta, S.K. 1997. Irigasi dan Bangunan Air. Gunadarma. Jakarta.
Sriharto, Br. 2000. Hidrologi: Teori Masalah Penyelesaian. Nafiri. Jakarta.
Sukiman, M., 2011, Pemeliharaan Jaringan Irigasi Glodog Kabupaten Boyolali. Makalah Magister Teknik Rehabilitasi Dan Pemeliharaan Bangunan Sipil Universitas Sebelas Maret, http://www.scribd.com/doc/51349267/ 012-TUGAS-OP-IRIGASI, 20 Oktober 2012, 09.43 wib.
Suroso, A. 2006. Irigasi dan Bangunan Air, Pusat Pengembangan Bahan Ajar UMB, http://pksm.mercubuana.ac.id/ new/elearning/files_modul/110262882911526635.doc, 11 November
, 14.13 wib.