"type": "Point", "coordinates": [76.9548034,9.962278] }, "properties": { "title": "Lower Periyar Dam", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [76.9968439,9.9829676] }, "properties": { "title": "Kallarkutty Dam", "description": "", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [76.705833,10.221667] }, "properties": { "title": "Idamalayar Dam", "description": "", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [77.1763,10.0218] }, "properties": { "title": "Anayirankal Dam", "description": "", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [77.19,10.14] }, "properties": { "title": "Kundala Dam", "description": "", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [76.662222,10.136389] }, "properties": { "title": "Bhoothathankettu", "description": "", "marker-symbol": "dam", "marker-size": "large", "marker-color": "0050d0" } } ] Power Generation The Project harnesses a major portion of the power potential of Periyar, the largest river in Kerala, by the creation of a reservoir of 2,000 M.cum (2 Billion Tonnes) capacity, diversion of waters thus impounded through a water conductor system consisting of a power tunnel and two underground pressure shafts to an underground power house situated in Moolamattom. The installed capacity of the Power House is 780 MW consisting of 6 Units of Pelton-type turbines with a power generation capacity of 130 MW each. The regulated waters of Periyar falls through a drop of about while generating power in the underground power house. The generated power is given to two sub stations. One double circuit line to Kalamassery; one single circuit line to Tamil Nadu; One single circuit line to Pallom, 3 feeder bays for future. Irrigation The tail waters flowing to Kudayathurpuzha through tunnel and open channel is diverted for irrigation purposes in the Muvattupuzha Valley. Tourist destination and attraction Earlier, there was a blanket ban on public entry in to the dam due to security reasons. Later, it was relaxed opening the dam for public for 10 days during the Onam and the Christmas seasons. The duration has been increased to one month since last year. Cameras and cell phones are not allowed inside the dam area. The entry fee is Rs. 25 for adults and Rs. 5 for children. The fee for 15-minute boating service for five persons is Rs. 600. Idukki valley is away from Kottayam, and is a small