Design Manufacture Reservoir in Sota Regency of South Papua Province
Lukman N. Reliubun (a), Felisitas Ulian (b*), Yosefina Mangera (c)

a) Department of Geological Engineering, Jayapura University of Science and Technology, Jayapura, Indonesia
b) Department of Physical Education, Musamus University, Merauke, Indonesia *felisitascataleyajohannaulian[at]gmail.com
c) Department of Agriculture Engineering, Musamus University, Merauke, Indonesia

Abstract

Sota District is one the Merauke of South Papua province with lowland and upland areas with altitude between 0 and 765 m above sea level, most of which is agricultural area. If viewed according to the elevation class, the sota district is a plateau area that has a height class between 46 - 184.06 mdpl. With a broad catchment area of 31,364.96 km2, based on rainfall analysis yielding maximum rainfall of R50th = 111.71 mm from the rainfall data resulted in the discharge plan Q50th = 64.3700 m3/dt so that the height of the location = 12 meters, caval elevation = + 1190.00, = + 1186.00, the width of the overflow threshold is determined = 15 m, the compressive height (energy) above the overflow = 2,052 m, the water velocity at the overflow foot = 15.987 m/s, the water level at the overflow foot = 0.303 m, uniform discharge = 4,851 m3/s, water depth in downflow = 1.172, slope stability analysis of sudden condition of water level = 1.155 and reservoir planning has been qualified to the stability of sliding, bolsters and bottom erosion (piping) and soil carrying capacity.

Keywords: Hydrology- Design reservoir- Irrigation

Topic: Sustainable Environmental in Multidisciplinary