Supporting Everyday Life Through Social Infrastructure and Sports

Recent climate change and urbanization have increased the risk of river flooding and urban inundation, making rainwater runoff management increasingly important.

Developed by Risu Kogyo, RISU RAIN STADIUM is a plastic rainwater storage and infiltration system. Its plastic components are stacked to form multiple tunnel-like structures, which are then covered with impermeable or permeable sheets to create an underground rainwater storage and infiltration tank.

RISU RAIN STADIUM has been installed in many locations, including parks, school grounds, parking lots at large shopping malls, factories, warehouses, and plazas at private hospitals. Even after installation, the land above can continue to be used effectively, while the system helps reduce flood damage during heavy rainfall.