LocationLatitude : 9⁰ 57′ 44 ” NDam Features
Longitude: 76⁰ 57′ 24” EType of DamConcrete – gravity
PanchayathKanjikuzhiClassificationHH ( High Height)
VillageKanjikuzhiMaximum Water Level (MWL)256.00 m
DistrictIdukkiFull Reservoir Level ( FRL)253.00 m
River BasinPeriyarStorage at FRL5.30 Mm3
RiverPeriyarHeight from deepest foundation32.36 m
Release from Dam to riverPeriyarLength284.00 m
Taluk through which release flowsIdukki, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, ParavurSpillwayOgee type- 5 Nos. radial gates, each of size 13.5 x 15.65 m
Year of completion1998Crest Level237.74 m
Name of ProjectLowr Periyar HEPRiver Outlet2 Nos. Lower vent gates of size 6.75 x 15.65 m
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 Project180 MWAssistant Executive Engineer, Dam Safety Sub Division, Pambla PIN- 685606 Phone- 9496011802
Project Identification Code ( PIC)KL29HH0051
The Lower Periyar dam is a part of the Lower Periyar Hydro Electric Project The reservoir of the Lower Periyar Hydro Electric Project (LPHEP) is created by constructing a dam at Pambla across Periyar river. The inflow of Lower Periyar (LP) reservoir is governed by the tail race release of Neriyamangalam Hydro Electric Project and the uncontrolled flow downstream of Kallarkutty and Idukki dams. The water from LP reservoir is diverted through a water conductor system to the Powerhouse of LPHEP located at Karimanal on the left bank of Periyar river. After generating power, the water is released to Periyar river itself.
Lower Periyar