Penerapan Konsep Zero Delta Run-Off pada Rencana Gedung Hotel Candi, Kabupaten Semarang

Abstract

Candi Hotel Building is one of the developing areas in Semarang Regency. It is necessary to pay attention to the hydrological problems that may occur because this area was originally a water catchment area, so it requires good planning for its drainage system. For this reason, a zero delta run off concept will be planned with eco-drainage technology, so as not to increase the drainage load towards the outlet. 3 drainage system scenarios were tried in this study, scenario 1 (conventional drainage channel), scenario 2 (drainage channel with retention pond), scenario 3 (drainage channel with bioretention), With a reference flood discharge 5 years before the area was built of 0.740 m3/second, of the 3 scenarios studied there are 2 scenarios that meet the zero delta run off concept, namely scenario 2 and scenario 3 with a 5-year flood discharge that can be accommodated entirely with eco-drainage technology so that there is no flood discharge towards the outlet.