1. River


Bhavani, Cauvery, Amaravathy and Noyyal are the main rivers of the district. Other significant rivers are Palar in the North, Vatamalaikarai odai and Uppar rivers in the south. Palar constitutes the boundary between Erode district and Karnataka State in the North. The Bhavanisagar main canal along with the above mentioned rivers provide proper drainage and facilities for assured irrigation in the district. Bhavani rises in the silent valley in Palghat ranges in the neighbouring State of Kerala after receiving Siruvani, a perennial stream of Coimbatore District and gets reinforced by the Kundah river before entering Erode District in Gobichettipalayam.

Bhavani is more or less a perennial river fed mostly by the South-West monsoon. North-East monsoon also supplements its water resources. This river runs for over hundred miles through Erode District traversing through Bhavani and Gobichettipalayam taluks. It feeds the Bhavanisagar reservoir which takes an easterly course flowing through Gobichettipalayam, Sathyamangalam and Bhavani taluks before it ultimately joins river Cauvery on the Salem borders.

Cauvery rising in the Coorg, is joined by many small tributaries. It turns through Karnataka and at Hogenakal fall takes a sharp turn, east to south. Before reaching this point, its main tributary, viz., river Kabini joins it. From here it takes a south-easterly direction forming the boundary between Bhavani taluk of Erode District and Tiruchengode taluk of the neighbouring Namakkal District. After river Bhavani flows into it, the south-easterly course is continued forming the boundary between Erode taluk of Erode District and Tiruchengode taluk of Namakkal taluk.

Noyyal river is noted for its capricious nature. This is fed mostly by the South-West monsoon but the North-East monsoon brings freshes and this very often results in floods. Inspite of its unpredictable character, the river helps to irrigate considerable areas in Palladam taluk of Coimbatore Distrtict and Dharapuram taluk of Erode District. River Amaravathy which rises in the Travancore region of Kerala enters Erode District from Udumalaippettai taluk in Coimbatore District. The river flows through Dharapuram before it joins Cauvery in Karur District.

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