RIVERFRONT DESIGN AS A RESPONSE TO URBAN FLOOD (CASE STUDY: KALIMAS RIVERFRONT IN WONOKROMO WATERGATE SEGMENT, SURABAYA)

• Main Author: Thifal Amani, Sabita
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/76441
• Institution: Institut Teknologi Bandung

The change of city orientation towards rivers has a significant impact on its quality as one of the vital infrastructures in the city of Surabaya. As a result, surface flooding occurs along with the degradation of the quality and quantity of rivers in Surabaya. One of the cases of this phenomenon is the Kalimas Riverside segment of the Wonokromo Sluice. Despite the equipment of flood control facilities, this area still faces the potential of flooding within a time range of 0-3 hours, resulting in both tangible and intangible consequences. Four primary factors contribute to the occurrence of floods in the area such as: a significant reliance on conventional infrastructure, anthropogenic activities which focused on rivers at a local level, disparities in development along riverbanks, and the risk of rainwater overflow affecting both residential and commercial activities in the area. The objective of this study is to develop a design concept for the Kalimas Riverside Area using the Storm Water Management (SWM) approach. This approach involves implementing various elements to reduce direct water runoff into rivers. The run-off reduction process will be applied to a 12.9 Ha area through infill development, with the aim of reducing regional runoff loads in the surrounding area. This proposed design approaches the issue with several elements of Storm Water Management such as bioswale, bioretention, green roof, rain water harvesting system, parcels drainage system, detention basin, and the use of more permeable materials. This design is carried out through a systematic process that involves analyzing the principles and elements related to the riverfront, determining design tools, conducting site analysis, establishing the area's vision, and creating visualizations of the design concept. As the result, through the incorporation of infiltration, detention, and runoff water reuse in the design concept, water run-off within the area can be effectively reduced to less than 40%.