Across New York City, a network of approximately 300 solar-powered sensors is quietly working to protect communities from a growing threat: flooding. These devices, attached to road signs and telephone poles, are part of the innovative FloodNet Project. Their mission is simple yet crucial: to gather real-time data on floodwaters, which are becoming more frequent and intense due to climate change.

Led by researchers like Andrea Silverman of New York University, the project uses ultrasound technology to detect and measure water levels. This vital information is instantly sent to a public online dashboard. This means residents can check which streets are safe before traveling, avoiding dangerous flooded areas. Emergency responders also benefit, gaining immediate insights to react more quickly and effectively during a flood event.

Beyond immediate safety, the data helps the city understand exactly where flooding is worst and why. This precise knowledge is key to planning and implementing smarter, more effective flood prevention projects, ensuring resources are used where they’re most needed. In a world facing the urgent realities of global warming and rising sea levels, projects like FloodNet highlight how innovative, sustainable solutions are essential for adapting our cities and protecting our people.