Flood Risk Assessment in Pangalengan District (Study Case Pangalengan and Margamukti Village)
Assyifa Rosani (a), M. Syahril Badri Kusuma (b), Mohammad Farid (b), Bagus Handyastono (a), Regina Dio Oriandra (a*)

(a) Master Student of Water Resources Management, Faculty of Civil and Environmental Engineering Bandung Institute of Technology, Jl. Ganesha No.10 Bandung 40132, Indonesia
(b) Water Resources Development Center Bandung Institute of Technology, Jl. Ganesha No.10 Bandung 40132, Indonesia

Abstract

Pangalengan District is part of the upstream area of the Cisangkuy River, which is a tributary of the Citarum River. Several floods occur every year that inundate up to 2 (two) villages. It is suspected that flooding occurs due to changes in land cover from forests to plantation areas, where rainwater that falls will not be intercepted and immediately run over into settlements. This research analyzes the risk of flooding in the two affected villages. Flood analysis was conducted using modeling method using HEC-RAS software and FABDEM as the topography data. The parameters used for the vulnerability aspect are social and for the capacity aspect refer to those set by BNPB. The results of the model are then calibrated with flood events at the study site, then flood risk analysis is carried out to obtain a risk map that can be used as a condiseration for the flood management in Pangalengan.

Keywords: Pangalengan, Flood, Risk Analysis, FABDEM, HEC-RAS

Topic: Engineering