Anayirangal Dam
The project is situated in Muthirapuzha basin, a sub basin of Periyar River. The reservoir is created by constructing a dam at Anayirankal. Construction was led by E.U.Philipose, Superintending Engineer, Kerala State Electricity Board. 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 Ponmudi reservoir at the downstream. This water is then diverted to Panniyar Power station located on the left bank of Muthirapuzha and released back to Muthirapuzha River and flows downstream to Kallarkutty reservoir.From there, the river flows through taluks of Udumpanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, Paravur.
Specifications
- 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
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, 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.