Banasura Sagar Dam, which impounds the Karamanathodu tributary of the Kabini River, is part of the Indian Banasurasagar Project consisting of a dam and a canal project started in 1979. The goal of the project is to support the Kakkayam Hydro electric power project and satisfy the demand for irrigation and drinking water in a region known to have water shortages in seasonal dry periods. The dam is also known as Kuttiyadi Augmentation Main Earthen Dam. The dam has a height of 38.5 metres (126 ft) and length of 685 metres (2,247 ft).
The Ponmudi Dam is a concrete gravity dam built across the Panniyar river which is a tributary of Periyar river at Konnathady panchayath of Konnathadi village in Idukki district of Kerala, India. The dam was constructed in 1963 as a part of a hydroelectric project. Construction was led by E.U.Philipose, Superintending Engineer, Kerala State Electricity Board. It has a length of 288.80 metres (947.5 ft). The hydropower component of the dam has an installed capacity of 30 MW with firm power of 17 MW, generating 158 GWh annually. Taluks through which the river flow are Udumbanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor and Paravur.
Kulamavu Dam is a gravity/masonry dam on Kilivillithode, which is a tributary of the Periyar river in Arakkulam village, Idukki district in the Indian state of Kerala. It is one of three dams associated with the Idukki hydro electric power project in the Indian state of Kerala. This dam is located towards the western side of the Idukki Arch Dam. This is a gravity dam with the top portion in concrete and the bottom in masonry.
The Lower Periyar Dam is a dam built on the Periyar River as part of the Lower Periyar Hydroelectric Project in Kanjikuzhi Panchayat, Idukki District, Kerala. The dam was built to generate electricity. The lower Periyar dam is at Pambla, five kilometres downstream from where Muthirapuzha merges with main river. This 32.36-metre-high dam made of concrete has a width of 284 meters. The powerhouse is at Karimanal, near Neriamangalam, where three generators are installed with a power production capacity of 60 MW each, or a cumulative 180 MW. The Dam was completed in the year 1998 Taluks through which release flow are Idukki, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor and Paravur.
Anayirangal Dam (Malayalam: ആനയിറങ്കൽ അണക്കെട്ട്) is an earthen dam built on the Panniyar river in Chinnakanal and Santhanpara panchayats, 22 km (14 mi) from Munnar in Idukki district of Kerala, India. The dam is surrounded on one side by forest and on the other by Tata Tea Plantation. The dam is located near the Munnar - Kumily road. The water flowing from the dam reaches Kuthungal and Ponmudi dams through the Panniyar river. Power is generated at Kuthungal and Panniyar powerhouses. The dam stores water from small streams flowing from Bealram and rainwater flowing from the hills on the Tamil Nadu border. The height of the dam is 34.14 metres (112.0 ft) and Length is 326.13 metres (1,070.0 ft). The reservoir usually fills up in June and July.
Azhutha Dam is a small diversion dam built on the Azhutha river which is a tributary of the Pamba River, at Azhutha in Peerumed Grama Panchayat of Idukki District, Kerala, India. It is a small concrete gravity dam that is only 72 metres (236 ft) long and 14 metres (46 ft) high. It acts mainly as a diversion dam to supply water to the Idukki Dam. Azhutha dam is constructed as an augmentation dam for the Idukki Hydro Electric Project. Construction of the project started in 1987 and was expected to be commissioned in 1991. But the project overrun and was only partially commissioned in June 1998. The year of completion was 2007. The release of the water from the dam is to Azhutha river and it flows through Ranni and Ayroor taluks.
Erattayar Dam is a small, diversion dam built on the Erattayar river in Erattayar grama panchayat near Kattappana town in Idukki district of Kerala, India. It acts mainly as a diversion dam to supply water to the Idukki dam. Diversion of water from Erattayar forebay to Idukki reservoir is through a tunnel called Anchuruli tunnel which is 3.77 km (2.34 mi) long. Construction of the dam was completed in the year 1989.
Kallar Dam is a small, diversion dam constructed at Perinjamkutty river in Nedumkandam grama panchayat of Idukki district, Kerala, India. It acts mainly as a diversion dam to supply water to the Idukki dam.
Moozhiyar Dam is a gravity dam located close to Kakki reservoir in Seethathodu panchayath of Pathanamthitta district in Kerala, India. The Kakkad Hydroelectric Project is powered by water from the dam. The water level is set at 192.5 meters. KSEB is responsible for the maintenance of the dam and other ancillary works. The Kakkad Hydroelectric Project generates 50 MW of electricity using 2 turbines of 25 MW each year. The annual output is 262 MU. The machine was commissioned on 16 September 1999. Kakkad Hydro electric Project is the second stage development of Pamba river basin. The installed capacity is 50 MW. This scheme utilises the tail race water from Sabarigiri power station and flow received from Moozhiyar and Velluthode rivers. Two dams feed water to the powerhouse. The Moozhiyar Dam creates the main reservoir of this project. Taluks through which release flow are Ranni, Konni, Kozhencherry, Thiruvalla, Chengannur, Kuttanadu, Mavelikara and Karthikappally.
Kundala Dam, also known as Setuparvatipuram Dam, is a masonry gravity dam built on Muthirapuzha River in Mattupetty panchayat of Idukki district in Kerala, India. It is part of the Pallivasal Hydroelectric Project, the first hydroelectric project in Kerala. The dam is considered to be Asia's first arch dam. It has a height of 46.93 m (154.0 ft) and length of 259.38 m (851.0 ft). Release from dam is to river Palar and taluks through which release flow are Udumbanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor and Paravur.
Chenkulam Dam is a gravity dam located on the Muthirapuzha river in Vellathooval panchayat of Idukki district in the Indian state of Kerala. It spans 144.50 metres (474.1 ft) long and stands 26.82 metres (88.0 ft). It hosts a 48 MW power plant.
Vellathooval Dam is a diversion dam built on the Muthirappuzha river in Vellathooval village in Devikulam taluk of Idukki district in Kerala, India. The height of the dam from the deepest foundation is 16 metres (52 ft) and length is 75 metres (246 ft). Water from the Sengulam Power House and from the Muthirapuzha river gets released to the Vellathooval dam. Water from this dam is diverted through a canal system to the powerhouse near Panniyar After the water flow is used to generate hydroelectricity, the water is released back into the river. The dam is one of the major tourist attractions in the Idukki District, Kerala.
Kullar Dam is a small, flanking dam which impounds Kullar river in Seethathodu village of Pathanamthitta district in Kerala, India. The dam was built as a part of Sabarigiri Hydroelectric Project. The release from the dam flows to Pamba river and from there, it flows through Ranni, Konni, Kozhencherry, Thiruvalla, Chengannur, Kuttanadu, Mavelikara and Karthikappally taluks.
Veluthodu dam is a part of Kakkad Hydro Electric Project and is located in Seethathode panchayath of Ranni Taluk in Pathanamthitta District of Kerala, India. Its a Concrete-Gravity dam built across the Veluthodu river, a tributary of Kakkad River which is again a tributary of Pamba River The dam is built primarily for electricity. This diversion dam diverts water to the water conductor system from Moozhiyar reservoir to Kakkad Power Station. This power station utilises the tail race water from Sabarigiri power station and flow received from moozhiyar and velluthode rivers. After power generation, water from Kakkad power station is released to the Kakkad River. Taluks through which release flow are Ranni, Konni, Kozhencherry, Thiruvalla, Chengannur, Kuttanadu, Mavelikara and Karthikappally It is operated by Kerala State Electricity Board.
R. A. Headworks or Ramaswamy Aiyar Headworks is a masonry type weir situated in Munnar panchayath of Munnar village in Idukki district of Kerala, India impounding mudirapuzha river. It is also called as Munnar Headworks. It is a part of Pallivasal Hydro Electric Project, the first hydro power project of Kerala State. There are two dams and one diversion weir as part of this project. These are Kundala Dam, Maduppetty Dam and R. A. Head works.
Meenar-1 Dam is a concrete, gravity dam constructed across Meenar river in Seethathodu village of Pathanamthitta district in Kerala, India. It is a diversion dam built as a part of Sabarigiri hydro electric project.
Meenar-2 Dam is a concrete, gravity type of dam constructed across the Meenar river which is a tributary of Pamba river in Seethathodu village of Pathanamthitta district in Kerala, India. This dam is constructed as a part of Sabaigiri Augmentation Scheme.
Vazhikadavu Weir is a diversion dam of concrete gravity type constructed across Meenachil River at Teekoy Village in Kottayam District in Kerala, India. The Vazhikkadavu weir is constructed as an augmentation scheme to Idukki HEP. The dam has a height of 10.20 metres (33.5 ft) from the deepest foundation and a length of 58 metres (190 ft).
Narakakkanam Weir is a diversion dam constructed across Narakakkanam River in Mariyapuram panchayath of Thankamani Village in Idukki district in Kerala, India. Narakakkanam weir is an augmentation weir for the Idukki Hydro Electric Project. Narakakkanam, Azhutha, Vazhikkadavu, Vadakkepuzha and Kuttiar diversion schemes were later added to augment the Idukki reservoir. The height of the dam is 11.50 metres (37.7 ft) from the deepest foundation and length is 45.20 metres (148.3 ft).
Kuttiyadi Saddle Dam is a concrete gravity dam built across Karamanathodu river which is a tributary of Kabani river in Padinjarathara village of Wayanad district in Kerala, India. It is one of the six dams created as part of Kuttiyadi Augmentation scheme which augments the Banasurasagar reservoir. The dam was built and is maintained by Kerala State Electricity Board.
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