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Risu Kogyo Co., Ltd.

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RISU Rain Stadium ---- Rainwater Storage / Infiltration Systems

Recent climate change and urbanization have led to more severe river and urban flooding, highlighting the importance of managing rainwater runoff. RISU Rain Stadium, developed by Risu Kogyo, is a rainwater harvesting and infiltration system made of plastic components that are stacked together to form multiple tunnel structures. These structures are then covered with impervious or permeable sheets to create a rainwater harvesting and infiltration tank.

We have already installed many of these structures in underground parks, school grounds, parking lots of large shopping malls, factories, and warehouses, as well as plazas of private hospitals and other locations. Following construction, they contribute to the effective use of land and mitigate flood damage during torrential rains.


Company Information

Risu Plastic Group