ANALISA SISTEM DRAINASE MENGGUNAKAN STORM WATER MANAGEMENT MODEL DI DESA TOLUTU
DOI:
https://doi.org/10.37971/radial.v13i2.571Keywords:
Drainage system, SWMM, Quantitative, Hydrological analysis, DischargeAbstract
The objective of this study is to determine the design peak flow (Qdesign) through hydrological analysis using SWMM and to evaluate the performance of the existing drainage system’s capacity. This study is quantitative in nature, employing observational methods and data collection through field observations and documentation. Data analysis includes hydrological analysis, rainfall intensity, channel capacity, and SWMM modeling. The results show design flow rates based on a 2-year return period of 2.56 m³/s, a 5-year return period of 3.75 m³/s, and a 10-year return period of 4.54 m³/s. The SWMM simulation indicates that the drainage system remains capable of effectively conveying runoff flow without flooding or overtopping at any of the modeled nodes. In conclusion, the maximum flow rate increases with longer rainfall return periods, placing a greater burden on the system; however, channel capacity remains generally adequate, although the downstream segment is the most heavily burdened and requires attention in terms of maintenance and periodic evaluation.
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