When will Chennai reservoirs be full?

Two reservoirs, Poondi and Red Hills, are already full, and Chembarambakkam is expected to reach full capacity by Thursday.

How much water does Chennai have secured?

The current storage of nearly 11,038 million cubic feet (mcft) in major reservoirs secures drinking water supply for Chennai for another year.

What is the Water Resources Department doing with Chennai's reservoirs?

The department is marginally increasing water discharge to maintain safe levels and prevent flooding, while also conserving water for the city's needs.

Home / Weather / Chennai Reservoirs Near Full, Water Discharge Increased

Chennai Reservoirs Near Full, Water Discharge Increased

11 Dec, 2025

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Summary

Major reservoirs in Chennai are at 94% capacity, ensuring water for a year.
Poondi and Red Hills reservoirs have reached full capacity.
Controlled water release aids flood management and ecosystem health.

Chennai Reservoirs Near Full, Water Discharge Increased

Chennai's water security is significantly boosted as its major reservoirs approach full capacity, reaching 94%. This level of storage is projected to guarantee the city's drinking water needs for the entire upcoming year. Officials report that Poondi and Red Hills reservoirs are already at their maximum, and Chembarambakkam is anticipated to reach its full storage by Thursday. This development is a positive sign for the city's water management.

The Water Resources Department is carefully managing water levels by marginally increasing discharge. This controlled release ensures safe storage capacities while steady inflow continues from catchment areas, even with receding rainfall. Water is being strategically diverted from Poondi to other reservoirs to replenish drawals and prevent excessive outflow into rivers, contributing to both flood mitigation and resource conservation.