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Tamil Nadu: Ennore estuary clean-up awaits funds by K. Lakshmi August 13,2019   |  Source: The Hindu

A proposal to keep the Ennore estuary free of sand bar formation is awaiting funds. The Water Resources Department recently submitted estimates for the project, significant for smooth freshwater exchange with the sea and mitigation of floods. The estuary — at the confluence of the Kosasthalaiyar river, the North Buckingham Canal and the sea — often gets clogged with sand deposits. At present, its mouth is only 50-75 m wide, and this often hinders tidal wave action and the free flow of water.

The Rs 140-crore project was designed based on a study by the National Institute of Ocean Technology (NIOT) on ways to reduce siltation in the estuary. WRD officials said the proposal had been sent to Kamarajar Port Limited for approval, and they were expecting funds this month.

“We completed the project to build nine more groynes between Ennore and Ernavoor kuppam in July to arrest shoreline erosion. The project will help resolve issues affecting the fragile ecosystem in the estuary,” said an official. The project proposes to construct groynes measuring 650 m and 300 m on either side of the estuary. A gap of nearly 500 m length and 200 m width will be maintained by dredging operations. This will allow free flow of freshwater into the sea for a longer period and protect the

 

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