Smart Manhole Covers

SUEZ monitoring systems never rest. We have you covered every inch of the way along your stormwater and wastewater collection systems. Even our manhole covers keep guard. SUEZ’ sensor-equipped Smart Manhole Covers actively manage collection systems, reducing sewer backups and sanitary sewer overflows (SSOs).
Smart Manhole Covers

3 Key Benefits of a SUEZ Smart Manhole Cover

  • Reduces Sewer Overflows
  • Allows Remote Monitoring and Data Collection
  • Reduces Costs

Occasional unintentional discharges of raw sewage from municipal sanitary sewers occur in almost every system. Smart Manhole Covers actively manage collection systems by monitoring water levels with sensor-equipped manhole covers. Smart Manhole Cover sensors are typically installed within manholes that have a history of SSOs or are close to sensitive locations, such as hospitals, schools and beaches.

The real-time measurements provide SUEZ with early warning and the advance notice necessary to prevent overflows. The technology also allows SUEZ to identify sources of Inflow and Infiltration (I&I) which are a major concern for utilities.

How Does SUEZ' Smart Manhole Cover work?

The device is attached to the cover’s underside and a hole is drilled in the manhole cover to install the antenna.

The unit is a dual sensor, composed of an ultrasonic sensor that measures the water level of the water when the device is not submerged, and a pressure transducer that measures the level of the water when the sensor is submerged.

The Smart Manhole Cover sends data via satellite to a secure web platform, where technicians monitor water levels and remain poised to dispatch emergency crews at any hour in case of rising water levels.

SUEZ can set up wastewater level sensor alarms based on the water level within the system

Alerts are sent directly to standby crews via email or text, as well as to the web platform.

Two types of maintenance can be performed based on the data collected:

  • Emergency action, such as high-pressure jetting, can be conducted to prevent an overflow once a high-level alarm is triggered.
  • Preventative action, such as pipe inspection, can be conducted if the water level is trending up over time. Inspection is conducted until the origin of the problem is identified and treated.

When used with additional applications, the data collected can be used to calculate flow rates and overflow volumes of Combined  Sewer Overflows (CSOs), and to visualize the real-time impact of rainfall or tide on water levels.

Your city and ratepayers deserve a reliable collection system with fewer blockages, overflows and disruptions. SUEZ is committed to deploying the most efficient tools to make your infrastructure more resilient and therefore more affordable to your customers.


Contact a representative to learn more about SUEZ smart manhole covers.