Bhavani (rivière)

Bhavani is an interstate Indian river which flows through Indian states of Kerala and Tamil Nadu, India. It originates from the Western Ghats and is one among the three rivers of Kerala which flows in eastward direction. Bhavani river originates from Nilgiri hills of the Western Ghats, enters the Silent Valley National Park in Kerala and flows back towards Tamil Nadu. The Bhavani is a long perennial river fed mostly by the southwest monsoon and supplemented by the northeast monsoon. Its watershed drains an area of spread over Tamil Nadu (87%), Kerala (9%) and Karnataka (4%). The main river courses majorly through Coimbatore district and Erode district in Tamil Nadu. About 90 percent of the river's water is used for agriculture irrigation. The Bhavani River is one of the main tributaries of the Cauvery River. It travels for and joins the Cauvery from the right bank. The river joins the Cauvery at the Kooduthurai holy site near Bhavani. Twelve major rivulets including West and East Varagar rivers join Bhavani draining the southern Nilgiri slopes. At Mukkali, Bhavani takes an abrupt 120-degree turn towards the northeast and flows for another through Attappady plateau. It gets reinforced by the Kunda river coming from the north. Siruvani river, a perennial stream and the Kodungarapallam river, flowing from the south and southeast respectively join the Bhavani at Kerala-Tamil Nadu border. The river then flows east along the base of Nilgiris and enters the plains near Bathra Kaliamman temple at Mettupalayam after joining with Coonoor river coming from northwest. About downstream, Moyar River, a major tributary originating in Mudumalai National Park, flows in from the northwest, where it drains the valley between the northern slopes of the Nilgiris and the southern slopes of the Bilgiri Hills. After the Moyar it is blocked by the Lower Bhavani Dam, feeding Lower Bhavani Project Canal near Sathyamangalam in Erode District. The river continues east for over through Erode District, traversing Kodiveri Dam, near Gobichettipalayam which feeds the Arakkankottai and Thadappalli canals constructed for agricultural purposes.

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Bhavanisagar Dam

Bhavanisagar Dam or Lower Bhavani Dam, is located in Erode district, Tamil Nadu, India. The dam is constructed on the Bhavani river. It is one of the world's largest earthen dams. The dam is situated some west of Sathyamangalam, is 17 km (11 mi) North of Punjai Puliampatti, is from Gobichettipalayam and is north-east to Mettupalayam. The Lower Bhavani Project was the first major irrigation project initiated in India, after independence, in 1948. It was completed by 1955 and opened for use in 1956.

Sathyamangalam

Sathyamangalam (also known as Sathy) is a town and municipality in Erode district in the Indian state of Tamil Nadu. 8th century Town. It lies on the banks of the River Bhavani, a tributary of the River Cauvery in the foothills of the Western Ghats. It is about 65 km from Erode, 58 km from Tiruppur and 70 km from Coimbatore. As of 2011, the town had a population of 37,816. Sathyamangalam is situated on the southern side of the Western Ghats, which extend towards the east from the Nilgiri mountains.

Nilgiris

Les Nilgiris () sont une chaîne de montagnes des Ghats occidentaux située dans l'ouest du Tamil Nadu, à la frontière avec le Kerala, en Inde du Sud. Les Nilgiris comptent vingt-quatre sommets au-delà de dont le plus haut est le Doddabetta (). Les Nilgiris tirent leur nom du नीलगिरि et du நீலகிரி, d'un terme composé de deux mots, Nil/Neel/Neela (नील/நீல) signifiant « bleu » et Giri (गिरि/கிரி) signifiant « montagne », le tout traduisible par « montagne(s) bleue(s) ».

Time-dependent failure analysis of large block size riprap as bank protection in mountain rivers

Mona Jafarnejad Chaghooshi

Erodible river banks need to be safe against the possible scouring during flood events in mountain rivers. The consequences of the bank failure are probably lateral uncontrolled erosion and flooding with disastrous losses in residential areas or damage of ...

EPFL2016