Storage capacity analysis of Nipa Nipa regulation pond using Ripple method

Abstract

Abstract Tallo River has the potential to pose a threat of flooding because it is strongly influenced tide. Regulation Ponds are flood control structures built upstream from areas that will be protected from flood hazards. Storage Capacity Analysis of Nipa regulation pond using Ripple method. Flood routing results obtained a maximum of 3.395.116,79 m3, while topographic conditions obtained a maximum of 3.583.270,96 m3 then optimization analysis based on the Ripple Method obtained with volume accommodated during 1980-1984 is 2.508.330,462 m3, during 1985-1989 is 2.158.594,429 m3, during 1990-1994 is 1.721.928,984 m3, during 1995-1999 is 2.072.035,680 m3, the volume accommodated during 2000-2004 is 2.526.941,033 m3, volume accommodated during 2005-2009 is 1.996.205,351 m3 and volume accommodated during 2010-2014 is 1.913.798,405 m3. This shows that storage capacity of regulation Pond can serve to reduce flood in Tallo River. Based on the cumulative storage analysis, a maximum storage of 10.592.032,714 m3 obtained from the inflow and outflow analysis, indicating that the Nipa regulation pond was able to reduce flood in amount of 38,07 % i.e. 4.032.440,62 m3.