PERENCANAAN EMBUNG SOMOSARI DI JEPARA
ABSTRACT: Somosari Village and
its surrounding area in Jepara District is currently having a decline in its
water resources. This condition is indicated by the drop of ground water level,
the drought among its river and the reduction of water availability through out
its irrigation. On the counting, this condition is contrasted by the flood
during the rainy season. An alternative solution to the conditions is to build
small dam in Somosari Village. The small dam is function as water reservoir,
flood control, and conservation. The final project was based on some
complementing methods. The first method is hydrological analysis which included
storage capacity analysis using simulation. The other hydrological analysis are
analysis of flood discharge using Weduwen Methods, discharge mainstay analysis
using Basic Year Methods, water demand analysis and water balance analysis. The
last phase is small dam construction planning. The result suggest that Somosari
Small Dam will have 100752.736 m3 storage capacity, handle the flood debit of
426,279 m3/sec with cycle period of 100 years. The small dam is planned to be
build as high as 18 m with the base elevation degree +274.48, and effective
width of 22.127 m. The small dam constructed using K 300 concret and fill soil
with estimated cost of Rp 20,814,178,800.00 (twenty billion eight hundred
fourteen million one hundred seventy eight thousand and eight hundred Rupiah).
Penulis: Hesti Astria Utami,
Galang Sri Nalendra, Sriyana, Priyo Nugroho
Kode Jurnal: jptsipildd150208
