Analisis dan Evaluasi Saluran Drainase dengan Model EPA SWMM 5.1 Pada Cluster Lara Santang Untuk Blok C3, D3 dan E3 di Perumahan Pakuan Regency, Bogor.
Napitupulu, Hesekiel Ryan Hidayat
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Drainage is one of the essential components of infrastructure to channel the water excess. Water excess can be occurred as the result of the high rainfall intensity or the long periode of rainfall. Recently, the presence of the drainage system one of the critical parameters of urban infrastructure assessment, particularly in the residential areas. This study aims to analyze the drainage system in Pakuan Regency Residence, Bogor from Cluster Lara Santang for Block C3, D3 dan E3 using EPA SWMM 5.1 modelling to the amount of runoff and evaluate the suitability of drainage channel. The result of SWMM 5.1 modelling simulation shows that rainfall design is 144 mm with the effective rainfall intensity 3 hours. The maximum runoff discharge in subcatchment is 254.37 l/s i.e at S1 while the minimum runoff discharge is 146.07 l/s i.e. at S3. Total infiltration is ranged from v 0.61 to 1.74 mm for each subcatchment. The maximum water flow discharge reach 450 l/s in C5 channel. Overall, the drainage network system in Lara Santang Cluster, Pakuan Regency can retain all the runoff discharge based on rainfall design. While for conduit occur an over capacity at C3, C4, C5, C6, and C7. The difference cost from the beginning dimensions with the optimal dimensions is Rp 16,372,000.00.