PERENCANAAN ULANG JARINGAN IRIGASI TERSIER MENGGUNAKAN LINING MODULAR PADA DESA PENDEM, KECAMATAN JUNREJO, KOTA BATU

Abstract

Loss of water due to damage to the carrier channel in Pendem Village resulted in imperfect distribution of water to the land. With this, it is necessary to re-plan irrigation channels that can reduce water loss in the canal. In planning this, a modular irrigation channel is used with the advantage of having better flow quality and can prevent landslides in the channel. The data needed in this planning include topographic maps, rainfall data from the 3 closest stations, climatological data, and Batu City HSPK. processed using the basic year method and for evapotranspiration using Penman Modified. In theresults calculation obtained NFR 0.929 liters / second / hectare, the dimensions of the channel used for the carrier and discharge channel (tertiary and quarter) is a square shape, the tertiary channel is 9 with a configuration of 0 - 0 ( ba = 0.86m bb = 0.18m H = 0.65m ) with a planned guard height of 0.2 meters. For the quaternary channel the largest dimensions are b = 0.88 and H = 0.24 m and the guard height is 0.2 meters. While the number of drains is 5 with the largest channel dimensions b = 0.6 meters, h = 1.0 meters with a guard height of 0.4 meters. The budget plan for tertiary irrigation network planning is Rp 4,569,167,600.00