摘要：Flooding in Jakarta is a common phenomenon that is caused by climate changes. One of the government’s actions is building polders in Jakarta to prevent the flooding. However, these polders seem to not significantly affect it. This research aims to analyse Ancol Polder in North Jakarta as flood prevention infrastructure. This research uses Muskingum Cunge and O’Donnel and Muskingum Extended methods to analyse the hydrographs. This research analyses the performance of channel capacity by HEC-RAS modelling approach and observes its stabilization using GeoStudio 2012. The existing condition of the channel still accommodates the maximum outflow that enters the stream. Furthermore, its stability is safe in all of the reviewed STA in Pademangan Timur channel.
