With good rainfall in the catchment areas in Madhya Pradesh, the water level in the Sardar Sarovar Dam in Gujarat went up to 136.43 m., only two metres short of its full reservoir level.
With an outflow of around 3.5 lakh cusecs from the dam, authorities in Bharuch district downstream the Narmada river have asked villages located in the low-lying areas to stay alert.
Source: The Hindu
About Sardar Sarovar Dam:
It is a concrete gravity dam built on the Narmada River at Kevadia in Gujarat’s Narmada district.
It was named after Sardar Vallabhbhai Patel.
Having a length of 1.2 km and a depth of 163 m, it is the third highest concrete dam in India, the first two being Bhakra (226 m.) in Himachal Pradesh and Lakhwar (192 m.) in Uttar Pradesh.
In terms of the volume of concrete involved in gravity dams, it is ranked as the second largest in the world after the Grand Coule Dam in the USA.
It is a part of the Narmada Valley Project, a large hydraulic engineering project involving the construction of a series of large irrigation and hydroelectric multi-purpose dams on the Narmada River.
Power benefits are shared among Madhya Pradesh, Maharashtra and Gujarat in the ratio of 57:27:16, respectively.
It forms a vast reservoir known as the Sardar Sarovar Reservoir or Narmada Lake.
Narmada River:
It is the largest west-flowing river in the peninsula India.
It rises from Narmada Kund, located at Amarkantak, in the Anuppur district of Madhya Pradesh, at an elevation of about 1057 m in the Maikala range.
It flows through Madhya Pradesh, Maharashtra and Gujarat between Vindhya and Satpura hill ranges before falling into the Gulf of Cambay in the Arabian Sea about 10 km north of Bharuch, Gujarat.
Its total length from source to sea is 1312 km.
It has numerous waterfalls, notably the Dhuandhar Falls, southwest of Jabalpur.
Its tributaries include the Tawa, Barna, Hiran, and Orsang rivers.
Gravity Dam:
It is a type of dam that relies on its own weight and mass to resist the horizontal pressure of water, thereby preventing the flow of water.
It is constructed using concrete or masonry.
It is designed in such a way that its massive weight provides the stability needed to withstand the forces exerted by water.
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