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Kuttiar Weir (Malayalam: കുട്ടിയാർ തടയണ) is a small diversion dam constructed across Kuttiar River in Elappara panchayath of Vagamon Village of Idukki District in Kerala, India. The Kuttiar weir is constructed for augmenting water to the Idukki Hydro Electric Project. The weir has a height of 16.5 metres (54 ft) from the deepest foundation and a length of 101.35 metres (332.5 ft)
Narakakkanam, Azhutha, Vazhikkadavu, Vadakkepuzha and Kuttiar diversion schemes were later added to augment the Idukki reservoir. The Kuttiar diversion scheme envisages diversion of water from 10.4 km of catchment of Kuttiar ar to Idukki reservoir by constructing an unlined tunnel of 2697.3 m length and a weir of 101.30 m long for an additional 37 Mu power generation at Idukki Power station.
Specifications
| Latitude : 9⁰ 44′ N | Dam Features | ||
| Longitude: 76⁰ 53′ E | Type of Dam | Concrete- Gravity | |
| Panchayath | Elappara | Classification | Weir |
| Village | Vagamon | Maximum Water Level (MWL) | EL 798.00 m |
| District | Idukki | Full Reservoir Level ( FRL) | EL 795.50 m |
| River Basin | Periyar | Storage at FRL | 0.35 Mm3 |
| River | Kuttiar river | Height from deepest foundation | 16.50 m |
| Release from Dam to river | Thodupuzha ar | Length | 101.35 m |
| Taluk through which release flows | Thodupuzha | Spillway | Ungated – Overflow section |
| Year of completion | 2009 | Crest Level | EL 795.50 m |
| Name of Project | Idukki HEP | River Outlet | 1 No. Circular type, 0.75 m dia |
| Purpose of Project | Hydro Power |
References
- "Dams in Kerala". indiawris.gov.in.
- N. Vijayamohanan Pillai; K. P. Kannan (July–December 2002). "Time and Cost Overruns of the Power Projects in Kerala1" (PDF). Journal of Social and Economic Development.
- "Diversion Structures in Idukki district – KSEB Limited Dam Safety Organisation". Retrieved 2021-07-29.
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