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Tackling waterlogging: TP Canal dredging to start today

Posted on June 8, 2022

KOCHI: The minor irrigation department will start dredging on the southern end of TP canal, from Perandoor side towards the direction of Vembanad Lake along the Chitoorpuzha, from Wednesday.

It is estimated that 75 lakh cubic meters of sediment will have to be dredged out on the two-km stretch of the canal and Chitoorpuzha. It is expected that the removal of sediment will help to resolve waterlogging issues in the adjoining areas. Upstream of Vaduthala area will also be dredged except near the Vaduthala bund bridge area.

“More than 75 lakh cubic meters silt remain deposited on the stretch. All the waste that flowed through Periyar in 2018 and 2019 floods has accumulated in the area. The dredged sediment will be deposited on available lands nearby and later it will be shifted to other locations depending on the availability of land. Initially, we will use a small dredger with a capacity to dredge 160 cubic meters per hour. Later, we will use dredgers with a bigger capacity,” said a minor irrigation department official.

The water from the T P Canal reaches Vembanad Lake through Chittoorpuzha. Since the deposited sediments block the water flow, it leads to waterlogging in the area.

The irrigation department official said that it is for the first time that dredging is done on a river in the state. He said it will take some time to complete the works since a huge quantity of waste to be removed from the canal and the Chittoorpuzha.

Meanwhile, the rejuvenation of Mullasserry canal, which is being carried out by the irrigation department, has not yet been completed. It can be completed once the KWA removes its pipes from the canal bed, said an official. “We can resume the work only after the rainy season ends. The KWA has to first relocate its pipes,” said the official.



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