Design and analysis of a polder system for urban flood control: a case study of the Bendung sub-catchment, Palembang City
Marlina Sylvia1, Anis Saggaff2 and F. X. Suryadi3
Department of Civil Engineering and Planning,Faculty of Engineering, Universitas Sriwijaya, Indralaya, Indonesia, 30662,Indonesia2
Water and Agriculture Core,IHE Delft Institute for Water Education, Delft,The Netherlands3
Corresponding Author : Anis Saggaff
Recieved : 04-July-2024; Revised : 25-March-2025; Accepted : 08-April-2025
Abstract
This research proposed the implementation of a polder system to protect the Bendung sub-catchment of Palembang City from inundation and flooding. The system consists of several key components, including ring dikes, outlet structures, and storage areas such as drainage canals and retention basins. The results indicate that the polder system is a viable option for flood protection in the Bendung sub-catchment, utilizing outlet structures, ring dikes, and temporary storage facilities. The existing pumping system, with a total capacity of 18 m³/s, was found to be sufficient for controlling water levels in the lower part of the polder when operated systematically. The duFlow program was used for the analysis, modeling both steady and unsteady flow, as well as water quality processes in one-dimensional open channel systems. Hydraulic response analysis revealed that only three pump units, each with a capacity of 9 m³/s, were needed to effectively regulate the water level in the lower area. However, to address water level management in the upper part and account for land use within the river plain, constructing a dike system along the river is recommended over river normalization. Expanding river profiles, particularly in areas already densely occupied by residential structures, was deemed infeasible.
Keywords
Urban flood control, Polder system, Bendung sub-catchment, Hydrodynamic modelling, Flood mitigation, duFlow simulation.
Cite this article
Sylvia M, Saggaff A, Suryadi FX. Design and analysis of a polder system for urban flood control: a case study of the Bendung sub-catchment, Palembang City. International Journal of Advanced Technology and Engineering Exploration. 2025;12(125):585-601. DOI : 10.19101/IJATEE.2024.111101175
