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Kulamavu Dam is a gravity/masonry dam on Kilivillithode which is a tributary of the Periyar river in Arakkulam village, Idukki district of Kerala, India . It is one of the three dams associated with the Idukki hydro electric power project in the Indian state of Kerala.[1] This dam is located towards the western side of the Idukki Arch Dam.[2] This is a gravity dam with the top portion in concrete and the bottom in masonry.[3]

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Kulamavu Dam
Kulamavu dam
Location in Kerala Show map of Kerala Kulamavu Dam (India) Show map of India
Country	India
Location	Kulamavu, Idukki, Kerala
Coordinates	9°48′10.59″N 76°53′46″E
Purpose	Hydroelectric
Status	Operational
Construction began	30 April 1969
Opening date	February 1977
Owner(s)	Kerala State Electricity Board
Dam and spillways
Type of dam	Gravity, masonry
Impounds	Periyar River
Height (foundation)	100 m (328 ft)
Length	385 m (1,263 ft)
Width (crest)	220 ft (67 m)
Dam volume	620,300 m3 (811,300 cu yd)
Spillway type	UG
Spillway capacity	1,600 m3/s (57,000 cu ft/s)
Reservoir
Catchment area	38 km2
Normal elevation	2,500 ft (760 m)
Turbines	6 x 130 MW Pelton-type
Installed capacity	780 MW

The dam is situated on the Thodupuzha - Puliyanmala state highway (SH-33), about 23 km (14 mi) from Idukki arch dam, 22 km (14 mi) from Cheruthoni dam and 38 km (24 mi) from Thodupuzha. The dam was completed in the year 1977 and is operated and maintained by Kerala State Electricity Board.

The dams of Idukki, Cheruthoni and Kulamavu extend to an area of 33 km². The construction of these three dams formed a 60 km² artificial lake. The water stored in it is used for the production of electricity at the power house in Moolamattom.[4][5] Taluks through which release flow are Thodupuzha, Udupanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungalloor and Paravur.

Specifications

• Type of Dam :Masonry & Concrete Gravity
• Classification : VH (Very High Dam )
• Panchayath : Arakkulam
• Village : idukki
• District : Idukki
• River Basin : Periyar
• River : Kilivallithodu
• Release from Dam to river : Kilivallithodu
• Length of Dam (m) : 385
• Max Height above Foundation (m) :100
• Total Volume Content of Dam (TCM) :453.13

Gross storage capacity: 1.996 cubic Kms (70.50 tmc ft) Active storage capacity: 1.46 cubic kms (51.56 tmc ft)

• Design Flood (cumec) :8014 [6]
• Maximum Water Level (MWL) : EL 2408.50 ft. ( 734.30 m)
• Full Reservoir Level ( FRL) : EL 2403.00 ft. ( 732.62 m)
• Storage at FRL : 1996.30Mm3
• Spillway : No spillway

Resesrvoir

Hydroelectric project

This Underground Power Station is supposedly a technological achievement. There are six generating units each of 130 MW capacity. There are seven 220KV feeders for transmitting the power to the load centers. The power generated in the powerhouse is taken to the switchyard through 220 KV oil filled cables. After power generation, water from the power station is released to the Thodupuzha River through an underground tunnel which is 1220 meters in length. This tail race water is in turn used for producing electricity in the Malankara Small Hydro Electric Station and also for irrigation by means of Irrigation dam at Malankara.[7]

See also

• Cheruthoni Dam
• Idukki Dam
• List of reservoirs and dams in India
• Moolamattom Power Station
• Telefilm about Idukki Dam

References

External links

• Kulamavu(Eb) Dam data

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