Interactive Map Manages Flooding Risk

Extreme rainstorms are becoming more frequent, and dense cities like Shenzhen are especially exposed. In September 2023, a record-breaking storm known as the “9.7” storm exposed weak points across the city. Shenzhen responded with a citywide Pluvial Flood Risk Map and China’s first local standard for protecting underground spaces from flooding. It also worked with neighboring Huizhou to align flood standards along a shared river, and added smart monitoring and early warning. Together, these steps move the city from reacting to floods toward preventing them.