Mapping of Flood Inundation and Eco-hydraulic Analyses to Minimize Food Discharge in Tributaries

Eco-hydraulic analyses begin with the arrangement of tributaries. This research aimed to minimize discharge flood run-off downstream and map inundation by spatial analysis uses DEMNAS data mapping areas using ArcGIS. Analysis return period points HEC-RAS version 5.0.7. The needed is cross section river, distance between sections, Manning's roughness number, slope river. integration topographic maps, watersheds water levels can display that are potentially affected floods, so limits be calculated. examined proper eco-hydraulics design it could reduce discharge, identify locations prone flooding, describe magnitude impact quantitatively. results eco-hydraulic method obtained border width 100 m, condition before existing river was carried out, height 0.30 – 1.13 m after reduced 113.09 209 m3/s 0 0.31 m. Based on results, known provide benefits for control measures.