DELINEATION OF FLOOD PLAIN EXTENSION

Abstract

Floodplain delineation is an effective approach in either avoiding of water crisis or making pragmatic decisions in terms of water management strategies. In this study a flood plain extension has been developed in ArcGIS and HE-CRAS models and a comparison has been made within three different scenarios of discharge. The results showed in low and medium discharge scenarios the buffer zone acts as a safety factor zone to adjacent infrastructure either agricultural or residential, but in high discharge condition buffer zone is entirely filled with stream water hence yet more safety regulation should be considered in order to avoid human and resource loss or damage within adjacent areas. Keywords: Flood plain delineation, Water depth profile, HE-CRAS, F. Sakhaee. Parks College of Engineering, Aviation and Technology, Civil Engineering Dept., Saint Louis University, USA