Chennai Corporation will start maintenance of three important canals in the city as part of flood mitigation measures. The State government on Friday issued a government order, handing over Veerangal Odai, Virugambakkam Canal and Otteri Nullah from the Water Resources Department to the Greater Chennai Corporation.
Engineers with experience in water resources management have pointed to the need for restoration and widening of the three canals to mitigate flooding in various parts of the city, including Velachery, Puzhuthivakkam, Virugambakkam, Arumbakkam, Saligramam, Koyambedu, Choolaimedu, Anna Nagar, Kilpauk, Kellys, Perambur and Pulianthope. “The Virugambakkam - Arumbakkam canal is the only canal that is beyond the tidal range. The canal has shrunk in width, reducing the quantity of water discharge during heavy floods. Widening of the canal may not be feasible. So the GCC should construct a loop canal in the form of a tunnel to facilitate discharge of more water in Virugambakkam - Arumbakkam Canal and disposal near the STP in Koyambedu on government land,” said an official.
Pointing to Veerangal Odai, officials said the canal was artificially constructed in Highways department land to drain water from the southern parts of the city. “The Veerangal Odai is in the tidal range. So pumping arrangements are required,” said an official.
Similarly, Otteri Nullah is within the tidal range upto Stephenson Bridge, and beyond. The civic agencies are expected to build another loop canal in the form of a tunnel to mitigate flooding during heavy rain along the stretch of the canal that is beyond the tidal range. Within the tidal range, pumping arrangement is the only solution for flood mitigation,” said an official. WRD has also recommended changes in the bridge size at several .locations including Kannigapuram, and preventing metrowater pipeline obstruction in the Otteri Nullah.
The Hindu had published an article articulating the grievances of the residents in the vicinity of the Virugambakkam-Arumbakkam Canal with respect to floodwater overflow, mentioning the demand from GCC that the WRD hand over their land to them, on Friday.
Published - October 19, 2024 02:11 am IST
