Ranni-Perinad Weir

Ranni-Perinad Weir is a diversion dam built in Kakkad river which is a tributary of Pamba River at Mampara in Ranni-Perinad villages of Pathanamthitta district of Kerala, India. The weir is a concrete-gravity type and is a part of Ranni – Perinad Small Hydro Electric Project, a run off the river scheme in Kakkad river in Pamba basin. It envisages the development of power by utilizing the tail race water from the Maniyar Power house, with installed capacity of 4.0 MW ( 2x 2.0 MW). The release of the water from the dam is to Kakkad river which in turn flows and joins Pamba river and flows through Taluks such as Ranni, Konni, Kozhencherry, Thiruvalla, Chengannur, Kuttanadu, Mavelikara and Karthikappally. The dam is also a part of Ranni-Perinad Water supply scheme.

Specifications

 * Latitude : 9⁰ 21′ 00 ” N
 * Longitude: 76⁰ 52′ 00” E
 * Panchayath	: Ranni- Perinad
 * Village	: Ranni- Perinad
 * District	: Pathanamthitta
 * River Basin	: Pamba
 * River : Kakkad ar
 * Release from Dam to river	: Kakkad ar
 * Year of completion	: 2012
 * Name of Project	: Ranni- Perinad SHEP
 * Type of Dam	Concrete – Gravity
 * Classification	: Weir
 * Maximum Water Level (MWL)	EL 22.10 m
 * Full Reservoir Level ( FRL)	EL 18.10 m
 * Storage at FRL	1.0 Mm3
 * Height from deepest foundation	9.35 m
 * Length	: 124 m
 * Spillway	: Ungated – Overflow section
 * Crest Level	EL 18.10 m
 * River Outlet	: Not provided

Ranni Perinad Small Hydro Electric Project
This project is a tailrace scheme to the Maniyar project, operated by M/s Carborandum Universal. Tail race discharge after power generation, water from the power station is released to the Pamba River.