Evaluasi Sistem Saluran Drainase pada Jalan Bunga Ester Kecamatan Medan Selayang

Abstract

An inadequate drainage system can cause waterlogging and flooding, especially in urban areas with high rainfall and rapid development. This study aims to evaluate the capacity of the drainage channel on Bunga Ester Street, Medan Selayang District, to determine whether the existing channels can accommodate the rainfall discharge according to the hydrological characteristics of the area. The analysis methods include collecting rainfall data, measuring the dimensions of existing channels, and calculating the design discharge using the rational method. The actual channel discharge is calculated based on the geometric profile and slope of the channel. The evaluation results show that most segments of the channel are unable to accommodate the design discharge, especially during rainfall events with certain return periods, thus requiring redesign or improvement of channel dimensions. This study recommends increasing channel capacity and implementing sustainable drainage management to reduce the risk of flooding in there.