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How safe is Mullaperiyar dam?

How safe is Mullaperiyar dam?

The Tamil Nadu Government on Saturday stood firm by its position in the Supreme Court that the 126-year-old Mullaperiyar dam is “hydrologically, structurally and seismically safe”.

What will happen when Mullaperiyar dam breaks?

If the dam-break were to occur at the maximum water level of 136 ft at Mullaperiyar, it will cause the water level at the much larger Idukki reservoir situated 36 km away to rise by 20.85 metres.

What is the maximum water level of Mullaperiyar dam?

The maximum storage level is 142ft. As per the decision, the water will be released when the water level reaches 138ft. Meanwhile, Idukki district collector Sheeba George said that all steps have been taken and various departments are put on alert over the increase in the water level in Mullaperiyar dam.

Does Mullaperiyar dam have shutter?

The spillway shutters of the Mullaperiyar dam were opened at 8 a.m. to release 772 cusecs of water to the Periyar after water level reached the upper rule curve level of 141 ft. Two shutters of the Kallar dam were also opened on Wednesday night to release 10 cumecs of water..

Is mullaperiyar a gravity dam?

Mullaperiyar is a masonry gravity dam managed by the Tamil Nadu government but geographically, it is situated in Kerala and hence the officers of both governments coordinate with each other before opening the dams..

Why Mullaperiyar dam is operated in Tamil Nadu?

The Mullaperiyar Dam was constructed during 1887-1895. Its full reservoir level is 152 ft and it provides water through a tunnel to Vaigai basin in Tamil Nadu for irrigation benefits in 68558 ha area.

Why Mullaperiyar dam is operated in Tamilnadu?

Which is the weakest dam in India?

Large Dam

# Name Status
1 Tehri Dam Completed
2 Lakhwar Dam Proposed
3 Idukki (Eb)/Idukki Arch Dam Completed
4 Bhakra Dam Completed

How much water does Mullaperiyar dam have?

It consists of a main dam, spillway on its left and an auxiliary dam (or “baby dam”) to the right. Its reservoir can withhold 443,230,000 m3 (359,332 acre⋅ft) of water, of which 299,130,000 m3 (242,509 acre⋅ft) is active (live) storage.

How does a gravity dam work?

A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it.

When was Mullaperiyar dam last opened?

October 29
The Mullaperiyar dam was last opened on October 29..