About rivers http://www.kerenvis.nic.in/isbeid/river_kerala1/river18.htm Korapuzha,Kallai and Chaliyar KORAPUZHA KALLAI CHALIYAR Basin area, km2 624 96 2923 Basin area in Kerala State, 624 96 2535 km2 Basin area in neighbouring 388 (Tamil Nadu) State, km2 District of Kerala in which Kozhikode,Malappuram, Kozhikode Kozhikode basin are located Wayanad Arikkankunni Cherikkulathur Origin of River Ilambalari Elevation. m : 2066 Elevation. m : 610 Elevation. m : 45 Length of main stream, km 40 22 169 Chalipuzha,Punnapuzha, Karimpuzha, Agalapuzha, Main tributaries Cherupuzha,kanjirapuzha, Pannurpuzha Kurumbanpuzha, vadapurampuzha,Iruthillypuzha 1.Nilambur (3) 2.Punnapuzha (4) Important raingauge stations 3.Ambalavayal (5) marked on the map 1. Quilandy (1) 1. Kozhikode (2) (with code numbers) 4.Anakkampoil (6) 5.Puthupadi S.S.F (7) 6.Edavanna (8) Average annual stream flow 221.8 (computed), Mm Average annual rainfall, mm 3800 3800 5902 1.Areacode (2) 2.Chaliyar (3) Important discharge stations marked on the map 1.Kollickal (1) 3.Kanjirapuzha (4) (with code numbers) 4.Karimpuzha (5) 5.Koodathai (6) 1 of 3 12/28/2011 3:53 PM About rivers http://www.kerenvis.nic.in/isbeid/river_kerala1/river18.htm 6.Mukkom (7) 7.Kuthirapuzha (8) 8.Punnapuzha (9) Water requirement for wetland 2882 2882 2882 for three crops, Mm3 Water requirement for 632 632 632 gardenland , Mm3 Water requirement for 631 631 631 domestic use (2021 AD), Mm3 Water requirement for industrial use (2021 AD), 450 450 450 Mm3 Chalipuzha, Irringipuzha, Major/medium irrigation Olipuzha Palakazhipuzha, projects investigated Beyporepuzha, Maruthapuzha Navigate length of river, km 24.8 9.6 68.4 Enlarged View Korapuzha also known as Elathur River is a short river. It is formed by the confluence of two streams, Agalapuzha and Punnoorpuzha which originate in the mountains of Wayanad district. The Korapuzha empties into the Arabian Sea at Elathur. The river and its main trinutaries become tidal as they near the Arabian Sea. There is heavy boat traffic over the last 25 km (16 mi) of its course. It forms part of the West Coast Inland Navigation System. The Korapuzha is generally considered as the cordon sanitaire between the North Malabar and South Malabar in the erstwhile district of Malabar. Until the 20th century the Nair women of North Malabar crossing the Korapuzha and going south or marrying a person from South Malabar was considered a taboo and those who violated faced Bhrasht (Ostracism) and forfeiture of caste. The river has two names - Chaliyar and Beypore puzha, of which the former is more popular. The river meets the Arabian Sea at an 'azhi' (estuary), the southern part of which is known as Chaliyam and northern part as Beypore. Thus the river gets the names Chaliyar and Chaliyar River. Chaliyar is one of the rivers which doesn't get dried up in the drought season. Many other rivers in Kerala get dried up during march and April. It flows through Malappuram District for most of its length and then for around 17 km it forms the boundary between Malappuram District and Kozhikode District before entering the city of Kozhikode for its final 10 km journey 2 of 3 12/28/2011 3:53 PM About rivers http://www.kerenvis.nic.in/isbeid/river_kerala1/river18.htm and finally empties into the Arabian Sea. Some of the Chaliyar's tributaries originate from Wayanad District and joins the main river in Malappuram. During late 19th century and early 20th century, the Chaliyar was extensively used as a waterway for carrying timber from the forest areas in and around Nilambur to the various mills in Kallai of Calicut city. Rafts made of logs were taken downstream during the monsoon season to Kallayi, where these were sawn to size in the timber mills dotting the banks of the river. Kallai was during this period one of the most important centers in the world for timber business. The place was famous for wood of superlative strength and durability like teak, rosewood, etc. Towards the second half of the 20th century, the activity came down drastically as tree felling was banned or strictly controlled with a view to stop deforestation. Many mills still operate in Kallai, though with far less output. Many have closed down. 3 of 3 12/28/2011 3:53 PM.