Kusnan, Heri Suryaman
The Unesa Ketintang Campus in Surabaya City is in lowland with an altitude between 3-4 m above sea level. Every rainy season arrives in this area frequent flooding. Puddles that occurred in 2013 with a long pool of ± 4 hours. Efforts have been made in 2014 to tackle flooding by raising paving pairs in open fields and roads and making reservoirs of ± 0.6 ha in the Unesa Ketintang Campus environment, normalizing the channel and installing pump houses to support the process of accelerating the reduction of standing water happen. However, still standing water (2014, 2015, and 2016) with a pool of ± 2 hours. The condition of the campus location which is lower than the condition of the surrounding area causes waterlogging and flooding in the study area. This study proposes a flood mitigation model using interconnection of the pump house system to reduce waterlogging, accelerate the water flowing process, and still optimize the operation and function of existing reservoirs. Water pump interconnected Pump House P1 to P8, namely: Unesa I Water Pump House (P1) functions to drain water from the campus area to reservoir campus, then in Unesa II Water Pump House (P2) serves to drain water from reservoir campus, which is flowed south towards the Wonorejo Primary channel through the Water Pump House (P3) and partially forwarded to the north of the Kalimir Jagir Water Pump House (P4), while eastward to drain water from the Wonorejo Primary channel to the Jemursari Prapen Water Pump House (P5 ) serves to help drain water from the Wonorejo Primary channel towards Jagir River, the Water Pump House Wonorejo I (P6) has a capacity of 8.9 m 3 / sec to accelerate the flow of water to the Water Pump House Wonorejo II (P7), Pump House Water Wonorejo II (P7) is used to accelerate the flow towards reservoir Wonorejo, and the reservoir Wonorejo Water Pump House (P8) serves to accelerate the flow of water to reservoir Wonorejo to be forwarded to the sea. Interconnection of the water pump system is able to overcome waterlogging and inundation problems. © 2020 Published under licence by IOP Publishing Ltd.
Civil Engineering Department, Faculty of Engineering, Universitas Negeri Surabaya, Indonesia
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