Smart Manhole Sensor

Cities rely on extensive underground infrastructure—manholes, drainage chambers, and stormwater pipelines—that often operate without real‑time visibility. Smart manhole sensors provide continuous monitoring of manhole cover movement, detecting unauthorized access, theft, or safety hazards instantly. At the same time, integrated pulsed‑radar water‑level sensing tracks rising water inside manholes and storm drains, giving municipalities early insight into blockages, surges, or abnormal inflow. This transforms passive underground assets into active data points that enhance operational safety, reduce maintenance costs, and prevent service disruptions. When deployed citywide, these sensors form a distributed early‑warning network for stormwater and flood management. Real‑time water‑level data helps operators identify flood risks before water reaches the streets, enabling proactive actions such as dispatching crews, activating pumps, or closing high‑risk roads. By reducing emergency response times and preventing uncontrolled flooding, cities can significantly lower infrastructure damage, improve public safety, and build