All five shutters of the Idukki reservoir opened on Thursday, a first in history. The decision to open the gates of Idukki reservoir was taken by the state after heavy rains triggered floods in Kerala and the reservoir reached its full capacity. The Idukki dam, which is one of Asia’s largest arch dams, is part of the three dams of Idukki reservoir. The others are Cheruthoni and Kulamavu. Since Idukki dam does not have shutters, all five gates of the Cheruthoni dam have now been opened up to dispel extra water.
This is the third time in history that all gates of Idukki reservoir have been opened. On both earlier occasions, the Idukki reservoir was opened in October, during the northeast monsoon. This is the first southwest monsoon that has seen the dam is opened.
In reservoir was first opened in 1981. The shutters were repeatedly opened and shut between October 29 and November 13. The second time the dam’s shutters were opened was in October 1992, for 12 days.
Idukki Dam opened shutters today after yrs! pic.twitter.com/sFJ1XhehGk
— Porinju Veliyath (@porinju) August 9, 2018
The Idukki has a capacity of 2,403 feet. The administration was alarmed when the water levels touched 2,399 feet on Thursday and then ordered the opening of the gate to send the flood reservoir’s water down the river Periyar. The water from the Idukki reservoir is used to power 6 generators with a total installed capacity of 780 MW.
At least 26 people have died in rain-related incidents in Kerala. The incessant rains caused rivers in the region to swell, urging the authorities to open the shutters of as many as 24 dams in the state so far.