JURNAL KARYA TEKNIK SIPIL
Volume 5, Nomor 2, Tahun 2016

PERENCANAAN BENDUNGAN BENDO PONOROGO

Ahmad Busiri (Departemen T. Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275)
Rahmawanto Fajar (Departemen T. Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275)
Sri Sangkawati (Departemen T. Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275)
Hary Budieny (Departemen T. Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275)



Article Info

Publish Date
18 Jul 2016

Abstract

A number of regionsin Ponorogo, East Java Provincehas a variety of water resource managementissues, includingfloodsduring the rainy seasonandwater shortagesduring the dry season. To overcome these problems then we planned Bendo dam.Methods of planning begins with determining the position of the location, hydrology and hydraulics which finally obtained information to determine the design of the dam. Bendo dam is planned to use dependable discharge with a probability of 80%. Water requirement value to fulfill the needs of irrigation water is 2.19 liters/sec/hectare and the water requirement is 823.7 liter/sec. We used HSS Nakayasu Flood discharge method with 1,000-year return period amounted to 676.37 m3 / sec. Bendo dam is also planned as a hydropower that produces 1.697,953 Kw hydroelectric power. Bendo dam is planned using Rockfill dam type with a core of impermeable clay with a slope of 1: 2,5 in the upstream and 1: 1,75 in the downstream. The peak height is 78,5 m, the width of the peak is 13 m, and the full length of the dam is 354,02 m with 50-years lifetime design.

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