IDUKKI DAM

Dam/Weir: IDUKKI DAM
LocationLatitude : 9⁰ 50′ 30 ” NDam Features
Longitude: 76⁰ 58′ 40” EType of DamConcrete – Arch
PanchayathMariyapuramClassificationVHD (Very High Dam)
VillageIdukkiMaximum Water Level (MWL)EL 2408.50 ft. ( 734.30 m)
DistrictIdukkiFull Reservoir Level ( FRL)EL 2403.00 ft. ( 732.62 m)
River BasinPeriyarStorage at FRL1996.30 Mm3
RiverPeriyarHeight from deepest foundation169.16 m
Release from Dam to riverNALength365.85 m
Taluk through which release flowsNASpillwayNo spillway
Year of completion1975Crest LevelNA
Name of ProjectIdukki HEPRiver OutletNot provided
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. II, Vazhathope, Idukki (Dist.), Kerala, PIN- 685602 Phone- 9446008425
Installed capacity of the Project780 MWAssistant Executive Engineer, Dam Safety Sub Division, Vazhathope , Idukki ( Dist.), Kerala , PNI-685602 Phone-9496011961
Project Identification Code ( PIC)KL29VH0027
Idukki dam is a part of Idukki Hydro Electric Project and is located in Idukki District of Kerala State. The Idukki Arch dam, Cheruthoni dam and Kulamavu dam together form the Idukki reservoir . The spill way of this reservoir is provided in Cheruthoni dam. The water from the reservoir is diverted through a 2027m long power tunnel and pressure shaft of average length 975m to an underground power house with an installed capacity 780 MW located at Moolamattom. The reservoir is augmented by diverting water from adjacent streams .
Idukki Dam
Dam/Weir: CHERUTHONI DAM
LocationLatitude : 9⁰ 50′ 48 ” NDam Features
Longitude: 76⁰ 58′ 00” EType of DamConcrete – Gravity
PanchayathVazhathopeClassificationVery High Dam
VillageIdukkiMaximum Water Level (MWL)EL 2408.50 ft. ( 734.30 m)
DistrictIdukkiFull Reservoir Level ( FRL)EL 2403.00 ft. ( 732.62 m)
River BasinPeriyarStorage at FRL1996.30 Mm3
RiverCheruthoniHeight from deepest foundation138.38 m
Release from Dam to riverCheruthoniLength650.75 m
Taluk through which release flowsThodupuzha, Udupanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, ParavurSpillwayOgee type with 5 Nos. Radial gates , each of size 12.19 x 10.36 m
Year of completion1976Crest LevelEL 723.29 m
Name of ProjectIdukki HEPRiver Outlet2 Nos. Scour sluices 1 No. – 3.05 x 6. m and other of 6 ft. dia
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. II, Vazhathope, Idukki (Dist.), Kerala, PIN- 685602 Phone- 9446008425
Installed capacity of the Project780 MWAssistant Executive Engineer, Dam Safety Sub Division, Vazhathope , Idukki ( Dist.), Kerala , PNI-685602 Phone-9496011961
Project Identification Code ( PIC)KL29VH0028
Cheruthoni dam is a part of Idukki Hydro Electric Project and is located in Idukki District of Kerala State. Idukki Arch dam, Cheruthoni dam and Kulamavu dam together form the Idukki reservoir. The spill way of this reservoir is provided in Cheruthoni dam. The water from the reservoir is diverted through a 2027m long power tunnel & pressure shaft of average length 975m to an underground power house with an installed capacity 780 MW located at Moolamattom. The reservoir is augmented by diverting water from adjacent streams.
Cheruthoni
Dam/Weir: KULAMAVU DAM
LocationLatitude : 9⁰ 10′ 03 ” NDam Features
Longitude: 76⁰ 53′ 9.61” EType of DamMasonry & Concrete Gravity
PanchayathArakkulamClassificationVH (Very High Dam )
VillageArakkulamMaximum Water Level (MWL)EL 2408.50 ft. ( 734.30 m)
DistrictIdukkiFull Reservoir Level ( FRL)EL 2403.00 ft. ( 732.62 m)
River BasinPeriyarStorage at FRL1996.30 Mm3
RiverKilivallithoduHeight from deepest foundation99.97 m
Release from Dam to riverKilivallithoduLength384.96 m
Taluk through which release flowsThodupuzha, Udupanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor, ParavurSpillwayNo spillway
Year of completion1976Crest LevelNA
Name of ProjectIdukki HEPRiver Outlet1 No. hollow jet valve 1.83 m dia
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. II, Vazhathope, Idukki (Dist.), Kerala, PIN- 685602 Phone- 9446008425
Installed capacity of the Project780 MWAssistant Executive Engineer, Dam Safety Sub Division, Vazhathope , Idukki ( Dist.), Kerala , PNI-685602 Phone-9496011961
Project Identification Code ( PIC)KL29VH0030
Kulamavu dam is a part of Idukki Hydro Electric Project and is located in Idukki District of Kerala State. Idukki Arch dam, Cheruthoni dam and Kulamavu dam together form the Idukki reservoir. . The water from the reservoir is diverted through a 2027m long power tunnel & pressure shaft with average length 975m to an underground power house with an installed capacity 780 MW located at Moolamattom. The reservoir is augmented by diverting water from adjacent streams.
Kulamavu
Dam/Weir: KULAMAVU SADDLE (NEAR JUNCTION)
LocationLatitude : 9⁰ 48′ 5 ” NDam Features
Longitude: 76⁰ 53′ EType of DamRolled earth fill
PanchayathArakkulamClassificationMH- Medium Height
VillageArakkulamMaximum Water Level (MWL)EL 2408.50 ft. ( 734.30 m)
DistrictIdukkiFull Reservoir Level ( FRL)EL 2403.00 ft. ( 732.62 m)
River BasinPeriyarStorage at FRL1996.30 Mm3
RiverKilivallithoduHeight from deepest foundation18.29 m
Release from Dam to riverNALength457.20 m
Taluk through which release flowsNASpillwayNo spillway
Year of completion1977Crest LevelNA
Name of ProjectIdukki HEPRiver OutletNA
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. II, Vazhathope, Idukki (Dist.), Kerala, PIN- 685602 Phone- 9446008425
Installed capacity of the Project780 MWAssistant Executive Engineer, Dam Safety Sub Division, Vazhathope , Idukki ( Dist.), Kerala , PNI-685602 Phone-9496011961
Project Identification Code ( PIC)KL29HH0059
Kulamavu saddle dam near Kulamavu is one of the two saddle dams of Idukki reservoir. The road to Idukki from Thodupuzha passes over the saddle dam.
Dam/Weir: KULAMAVU SADDLE (RIGHT BANK)
LocationLatitude : 9⁰ 48′ 5 ” NDam Features
Longitude: 76⁰ 53′ EType of DamRolled earth fill
PanchayathArakkulamClassification
VillageArakkulamMaximum Water Level (MWL)EL 2408.50 ft. ( 734.30 m)
DistrictIdukkiFull Reservoir Level ( FRL)EL 2403.00 ft. ( 732.62 m)
River BasinPeriyarStorage at FRL1996.30 Mm3
RiverKilivallithoduHeight from deepest foundation27.43 m
Release from Dam to riverNALength384.96 m
Taluk through which release flowsNASpillwayNo spillway
Year of completion1977Crest LevelNA
Name of ProjectIdukki HEPRiver OutletNil
Purpose of ProjectHydro PowerOfficers in charge & phone No.Executive Engineer, Dam Safety Division No. II, Vazhathope, Idukki (Dist.), Kerala, PIN- 685602 Phone- 9446008425
Installed capacity of the Project780 MWAssistant Executive Engineer, Dam Safety Sub Division, Vazhathope , Idukki ( Dist.), Kerala , PNI-685602 Phone-9496011962
Project Identification Code ( PIC)Nil
Kulamavu Saddle on right bank is one of the saddle dams of Idukki reservoir.