During the rainy season often occurs flood in some areas in the city of Palembang one of whom was a puddle in the Kambang Iwak Besar. The puddle occurs during the rainy season and the time of the tide on the river Sekanak, so that the discharge of Retention Kambang Iwak Besar can not flow downstream due to the back flow of the river Sekanak. This study aimed to analyze the surface profile befor…