Perancangan Sistem Drainase Yang Efektif Guna Mengatasi Masalah Banjir Pada Daerah Bundaran Tank Jalan Martandu Kota Kendari

Thahir, Annisa Puji Lestari
Hujiyanto, hujiyanto
Dharmawan, Rizaldi Wahab

Sultra Civil Engineering Journal (SCiEJ)
Vol 7 No 1 (2026): Sultra Civil Engineering Journal (SCiEJ)

Flooding is a natural phenomenon that often causes significant losses, influenced by both natural factors and human activities. One of the flood-prone areas is Martandu Street in Kendari, Southeast Sulawesi. This study aims to analyze the drainage capacity along a 1,550 m channel using a quantitative approach based on rainfall data, channel measurements, and hydrological analysis. The results show that the design discharge (4.298 m³/s) exceeds the existing channel capacity (2.913 m³/s), indicating that the drainage system can only accommodate 68% of runoff from a 305.495 ha catchment area. To address this issue, a redesign of the channel was proposed with improved dimensions. The redesigned channel is capable of accommodating a discharge of 4.301 m³/s, ensuring effective drainage performance and reducing flood risk in the area.