Perunthenaruvi Weir


Perunthenaruvi Weir is a diversion dam built across Pamba river at villages of Naranammoozhy and Vechoochira in Pathanamthitta District of Kerala, India. Perumthenaruvi Small Hydroelectric Project 6 MW is a run-of-the-river scheme in river Pamba, and the weir is a part of this scheme. This envisages the utilization of water from catchment of Pamba and Azhutha river for electricity generation under a net head of 18.00 m. The power house is located on the left bank of Pamba river. The weir is a concrete gravity type with a height of and a length of. Taluks through which the release flow are Ranni, Konni, Kozhencherry, Thiruvalla, Chengannur, Kuttanadu, Mavelikara and Karthikappally.

Specifications

  • Latitude : 9⁰ 24′ 44 ” N
  • Longitude: 76⁰ 52′ 48” E
  • Panchayath : Ranni- Perinad
  • Village : Naranammoozhi & Vechoochira
  • District : Pathanamthitta
  • River Basin : Pamba
  • River: Pamba
  • Release from Dam to river : Pamba
  • Type of Dam : Concrete – Gravity
  • Classification : Weir
  • Maximum Water Level : EL 55.20 m
  • Full Reservoir Level : EL 51.0 m
  • Storage at FRL : 1.00 Mm3
  • Height from deepest foundation : 10.93 m
  • Length : 227.50 m
  • Spillway : Ungated- Overflow section
  • Year of completion : 2017
  • Crest LevelEL : 51.00 m
  • Name of Project : Perunthenaruvi SHEP
  • River Outlet : 2 Nos. 2.00x 4.00m

Hydrology

Tourism

The Poonthenaruvi Water falls and related Eco tourism project is near the weir site. There is hanging bridge and view towers to spectate the beauty of the ravine.