Metrowater sets the ball rolling on the ageing sewer network upgrade in Chennai’s core areas

Chennai Metrowater is initiating an 800 crore project to overhaul aging sewer infrastructure in three core city zones. The project aims to replace outdated pipelines and rehabilitate pumping stations to address recurring sewage leaks and contamination issues.
Why it matters
This infrastructure upgrade is critical for public health and climate resilience in a rapidly urbanizing city facing chronic sewage management challenges.
In a bid to upgrade the city’s ageing sewer infrastructure in core areas, Chennai Metrowater is evaluating bids for a project to improve the sewer network in three zones covered by the Nesapakkam sewage treatment plant.
While the water agency is seeking a phased, STP-wise overhaul in core areas, residents demand a comprehensive modernisation of water supply and sewer infrastructure to address recurring leaks and drinking water contamination. Work order is likely to be issued in two months, officials said.
In the first phase, the sewerage system in parts of Teynampet and Kodambakkam and Adyar zones, which was created nearly five decades ago and suffered a significant strain over the years as sewage generation outnumbered the capacity, would be improved.
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