This interceptor sewer serves the Dorchester area in south Boston and is a historical brick combined sewer dating back to the late 1800s and was fully separated as of 2008.
However, the interceptor has a history of overflow issues due to its undersized pipe and flat slope, plus continued infiltration and inflow from various sources since its separation.
In addition to studying hydraulic conditions in the interceptor from local rain gages and groundwater, Kleinfelder is developing a predictive model for the sewer to alert BWSC of potential sanitary sewer overflows based on weather forecasts.
To inform this predictive model, BWSC and Kleinfelder sought StormSensor’s technology and hardware to collect and remotely report velocity, depth, and temperature every five minutes at every monitoring point. StormSensor installed an initial network of six StormSensor Scute™ sensors in July 2020.
With flow monitoring underway, StormSensor and Kleinfelder are working to integrate the real-time flow data into the predictive model and tools to help better inform BWSC’s maintenance and planning efforts.
The Boston Dorchester interceptor sewer system is more than a century old and inefficient at accommodating current inflows, resulting in overflows. In need of an alert system to identify potential overflows before they happen, StormSensor’s predictive algorithms and real-time data are helping to mitigate those risks.
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