LocationLatitude : 9⁰ 57′ 37 ” NDam Features
Longitude: 77⁰ 03′ 24” EType of DamMasonry- gravity
PanchayathKonnathadiClassificationHH (High Height)
VillageKonnathadiMaximum Water Level (MWL)708.66 m
DistrictIdukkiFull Reservoir Level ( FRL)707.75 m
River BasinPeriyarStorage at FRL51.54 Mm3
RiverPanniyarHeight from deepest foundation57.71 m
Release from Dam to riverPanniyarLength288.80 m
Taluk through which release flowsUdumpanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, ParavurSpillwayOgee type- 3 Nos. radial gates, each of size 10.97 x6.4 m
Year of completion1965Crest Level701.35 m
Name of ProjectPanniyar HEPRiver Outlet1 No. HB valve, 6 ft. dia
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. IV, Pambla, Idukki (Dist.), Kerala, PIN- 685606 Phone-9446008421
Installed capacity of the Project32 MWAssistant Executive Engineer, Dam Safety Sub Division, Kallarkutty Phone-9496011963
Project Identification Code ( PIC)KL29HH0012
This dam is a part of Panniyar Hydro Electric project and the location of the dam site is at Ponmudi. The Ponmudi reservoir is created by constructing a dam at Ponmudi across Panniyar river. The project is in Mudirapuzha basin, a sub basin of Periyar river basin. The water from Ponmudi reservoir is diverted through a water conductor system to Panniyar Power station (32 MW) located on the left bank of Mudirapuzha. After generating power, the water is released to Panniyar river itself.