The Idukki Dam, (Kerala,India) is currently the 14th largest arch dam in Asia, at 555 feet in height. The dam stands between the two mountains - Kuravanmala(839 feet) and Kurathimala(925 feet). It was constructed and is owned by the Kerala State Electricity Board.
This prestigeous project of our nation is situated in Idukki District and its underground Power House is located at Moolamattom which is about 19 kms from Thodupuzha. Idukki Dam is 43 kms away from Moolamattom. This dam was constructed along with two other dams at Cheruthony and Kulamavu. Together, the three dams have created an artificial lake that is 60 km² wide. The Government of Canada aided in the building of the dam with long term loans and grants.
HISTORY
The possibility of Hydroelecric development at Idukki was first conceived in 1919. As per history Shri Kolumban, the head of 'Araya' race during 1922 showed the way, to the Malankara Estate Superintendent and his friend Thomas, who were on hunting spree in the forest, the spot of present Arch Dam. He told them of the legend of Kuravan and Kurathi Hills. The mind of Thomas was stirred by the sight of water flow between the mountains and his idea made the dream true of Idukki Arch Dam. Sri. W.J.John of Malankara Estate submitted a report to the Government of Travancore in 1932 on the possiability of constructing a dam at Idukki for Power Generation.
HISTORY
The possibility of Hydroelecric development at Idukki was first conceived in 1919. As per history Shri Kolumban, the head of 'Araya' race during 1922 showed the way, to the Malankara Estate Superintendent and his friend Thomas, who were on hunting spree in the forest, the spot of present Arch Dam. He told them of the legend of Kuravan and Kurathi Hills. The mind of Thomas was stirred by the sight of water flow between the mountains and his idea made the dream true of Idukki Arch Dam. Sri. W.J.John of Malankara Estate submitted a report to the Government of Travancore in 1932 on the possiability of constructing a dam at Idukki for Power Generation.
Structure of Idukki Dam
Location : Idukki , Kerala , India
Completed in : 1976
Structural Type : Arch Dam
Concrete double, curvature parabolic, thin arcConstructed by : Hindustan Construction Company , Mumbai , India
(Idukki Dam is an Indo-Canadian Project)
Technical Details
Diamensions:
Height : 167.68m
Creast Length : 365.85m
Creast Width : 7.62 m
Base Width : 19.81m
Construction material used is concrete.
Concrete volume : 478 000 m3
Hydroelectric Project
Total drainage area | 250.7 square. miles (649.3 square kilometres) |
Full Reservoir Level (FRL) | +2403 feet (732.62 m) |
Maximum Water Level (MWL) | +2408.5 feet (734.3 m) |
Gross Storage of FRL | 70500 million cubic feet (1996.3 million cubic metres) |
Dead storage below Minimum Draw Down Level (MDDL) of +2280 ft. | 18957 million cubic feet (536.79 million cubic metres) |
Live storage | 51543 million cubic feet (1459.5 million cubic metres) |
Water Spread area | 23.1 sqare miles (59.83 sq. km) |
Installed Capacity | 780 Mega Watt (MW) |
Firm Power Potential |
Other Details
Cheruthony Dam
|
Kulamavu Dam
WATER CONDUCTOR SYSTEM
POWER TUNNEL
|
SURGE SHAFT
PRESSURE SHAFT
UNDERGROUND POWER HOUSE
|
Length of tunnel | 4000 feet (1220 m) |
Tunnel section | 26 feet x 23 feet (7.29 m x 7m) 'D' shaped, finished with full section lining. 26 feet x 24 feet (7.92 m x 7.32 m) in weak zones 'D' shaped, finished with lining only for floor and sides. |
Length of open channel | 852 feet (259.7 m) |
SWITCH YARD
Switch yard area | 821 feet x 282 feet (250.24 m x 85.95 m) |
Transmission lines | One double circuit line to Kalamassery one single circuit line to Tamil Nadu One single circuit line to Pallom and three feeder bays forfuture. |
it is incomplete
ReplyDelete