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Revival of ‘lost’ river renews ryots’ hopes
Thousands of farmers living on the banks of Kousika river and neighbouring villages did not realise its importance, until they realised one day that the groundwater table has depleted almost beyond reach. However, the Coimbatore district administration’s proposal to revive the river at Rs 87 crore would help resume agriculture in 24,000 acres.
Coimbatore
Originating from Kurudimalai near Narasimhanaickenpalayam in Coimbatore district, the river runs for 49.8 km through Coimbatore (39 km) and Tirupur district (10.8 km) before merging with River Noyyal at Aandipalayam. But, sadly, the river remains dry more than a decade.
Mining of red sand for bricks at Thalamadal Pallam, Thannasi Pallam and Chem Pallam that are located in the catchment areas of the river’s tributaries, poor rainfall and new check dams across the river’s tributaries are cited as the river’s plight.
“After the floods in 1999, water has never run through the course of the river for more than three decades,” P K Selvaraj, secretary of Athikadavu Kousika Nadhi Development Association (AKNDA) which has striving for the revival of the river for over three years, told DTNext.
He said that a decade ago water once flowed till Salaiyur check dam, which is nearly 20 km from the point of origin. Without the name boards bearing the words Kousika River, one would hardly know that there was once water flowing through the barren land that is now filled with thorny bushes. It also became a dump yard for wastes and sewage from the local bodies. “Till early 1990s, we had plenty of groundwater at a depth of 60 to 100 feet,” he said.
With the mushrooming of borewells on the river bank, the water level went down to 300 to 400 feet in the next few years. “For the last two years, we are not able to draw water even after drilling for 1,200 feet. Only 20 per cent of the wells are able to pump water,” he said. This forced farmers in the once agriculturally rich belt to switch to alternative sources of income. The district administration’s announcement has renewed the farmers’ hope in the region.
Kousika to undergo multi-level makeover
With the announcement of revival of Kousika river, the persistent efforts of the Athikadavu Kousika Nadhi Development Association (AKNDA) for three years have yielded results.
Executive Engineer of the Agricultural Engineering Department, Coimbatore, P Jeevanantham whose team prepared the detailed project report told DTNext that the proposal has a holistic approach to revive the river and make optimum use of the agricultural lands that have remained barren for decades.
The rain-fed river is a collection of many streams and springs that join at one point to become Kousika river. Its width is about 30 metres near the point of origin and has a maximum width of 22 metres towards the tail end. They have sought the Rs 87 crore over a period of four years to complete the project in a phased manner.
Works to be taken up under the project include removing encroachments, desilting the river bed and removing the outlet of sewage and garbage dumped into the river before carrying out proactive measures such as construction of check dams among other things to retain the rain water and improving the ground water table.
They have proposed strengthening the bunds of the point of origin with loose rock check dams without plastering them with cement, followed by Gabion check dams where a wire mesh will be affixed on either side of a pile of boulders to act as a natural barrier to reduce the flow of water. Close to 100 check dams (of various sizes), percolation ponds and water harvesting structures will also be built along the way.
“We have also proposed establishing sewage water treatment plants in the education institutions close to the river so that the treated water could be used for irrigation. Other components proposed in the project include digging farm ponds and providing solar pumps and machines at a subsidised rate,” Jeevanantham said.
In the last week of December, District Collector T N Hariharan forwarded the detailed project report to the Finance Secretary through the Agricultural Engineering Department. The stage is set for kick-starting the works on getting the government’s nod.
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