Anayirangal Dam

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Anayirankal Dam

Anayirangal Dam (Malayalam: ആനയിറങ്കൽ അണക്കെട്ട്) is a dam built on the Panniyar River in Chinnakanal and panchayats, 22 km from Munnar in Idukki district of Kerala, India^[1] The dam is surrounded on one side by forest and on the other by Tata Tea Plantation. The dam is located near the Kumily-Munnar road. The water flowing from the dam reaches 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 reservoir usually fills up in June and July.^[2] The height of the dam is 34.14 metres (112.0 ft) and Length is 326.13 metres (1,070.0 ft).

The project is situated in Mudirapuzha basin, a sub basin of Periyar River. The reservoir is created by constructing a dam at Anayirankal. The dam has ungated spill way system. The water stored in the reservoir is released to the river downstream through an outlet. This water is diverted by an overflow barrage at Kuthungal to Kuthungal Power House. After generation of power the water is released to at the downstream. The water from the Ponmudi reservoir is diverted to Panniyar Power station located on the left bank of Mudirapuzha and released back to Mudirapuzha river and flows downstream to kallarkutty reservoir.^[3] From there the river flows through taluks of Udumpanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, Paravur.

Specifications[]

• Latitude : 10⁰ 00′ 20 ” N
• Longitude: 77⁰ 12′ 30” E
• Type of Dam : Earthen dam
• Classification : HH (High Height)
• Panchayath : Santhanpara
• Village : Pooppara, Chinnakanal, Rajakumari
• District : Idukki
• River : Panniyar
• Height from deepest foundation : 34.14 m
• Length : 326.13 m
• Full Reservoir Level ( FRL) : EL 1207.02 m
• Storage at FRL : 50.68 Mm3

Reservoir[]

Anayirangal Reservoir

Reservoir is formed by impounding the Panniyar river. There is a second reservoir made by Ponmudi dam which is part of the Panniyar project.

• Full Reservoir Level (FRL) = 1207.01 m
• Minimum Drawdown level (MDDL)= 1188.1 m
• Effective Storage at FRL = 49.87 MCM
• Generation potential at FRL = 65.62 MU

Power Generation[]

Panniyar Power House in Vellathooval village, Konnathadi Grama Panchayat, on the left bank of Muthirapuzha,^[4] generates 30 MW of electricity using 2 turbines of 15 MW each. Annual production is 158 MU. In 2003, the project was upgraded from 30 MW to 32.4 MW.

References[]