Rivers that support hourly rainfall of about 60 mm are gradually expanded!

While the frequency and intensity of heavy rains have increased due to recent climate change, and the risk of natural disaster has increased further, the Watershed Flood Control Project was formulated in FY2021. In this "Bridge Flood Control Project", we aim to further improve flood control safety by raising the level of rivers in the city from about 50 mm to about 60 mm, aiming to further improve flood control safety.