1000-MW Karcham Wangtu unit still awaits repairs

The closure of the 1,000-MW Karcham Wangtu hydroelectricity project due to profuse water leakage from the surge shaft and the water-conducting system has again raised concerns about the safety of hydroelectricity projects being constructed in the private sector.

It has also underlined the need for putting in place an effective mechanism for the proper monitoring of projects during the course of construction. The project was closed for urgent repairs last month after the Directorate of Energy issued a notice to the Jaypee Company to rectify the defect as continuous leakage would not only aggravate the problem, but could cause damage in the areas downhill as well.

This is a compilation of dams in the country prepared by the Central Water Commission as per information received from the owners of the dams.

A five-judge constitution bench of the Supreme Court today declined to accept any fresh material other than what has been submitted by the expert panel on the controversial Mullaperiyar Dam row bet

Heavy rainfall leading to flash floods in Himalayan rivers in July-end devastated three states — Uttarakhand, Himachal Pradesh and Jammu and Kashmir. It claimed 34 human lives and damaged property extensively. It also brought into focus the precarious condition of more than a dozen dams in the region.

Within just one week, starting August 1, these states received about half the rainfall they receive over an entire year—Uttarakhand received 44.6 per cent of its annual rainfall; Himachal 51.8 per cent and Jammu and Kashmir 55.6 per cent. Uttarkashi district in Uttarakhand’s Garhwal region was the worst hit. The Bhagirathi, flowing much above the danger mark, washed away houses, hotels, roads and bridges. Nineteen labourers working on the Assi Ganga hydropower project in Uttarkashi were swept away by the river which they were trying to harness.

GUWAHATI: In a writ petition to the Supreme Court filed recently, the Assam Public Works, a social organization, has opposed the construction of the 2000-MW Lower Subansiri Hydro-electric Project (LSHP) on the Assam-Arunachal Pradesh border and argued that the LSHP would not only destroy the lives and properties of the people living in the downstream areas of the dam but also the ecology.

Based on the writ petition of APW, Justice S Kumar and Justice SJ Mukhopadhya of the country’s apex court have issued a notice to the NHPC Ltd and other concerned government departments to give a reply against the APW petition within two weeks.

The Supreme Court on Friday directed its Registry to digitise the final report of the Empowered Committee relating to the safety of the Mullaperiyar dam as well as the study and investigation reports relied on by this committee for reaching a conclusion.

A five-judge Constitution Bench comprising Justices D.K. Jain, R.M. Lodha, H.L. Dattu, C.K. Prasad and A.R. Dave gave this direction during the course of hearing of the Tamil Nadu’s suit challenging the law enacted by Kerala to restrict the water level in the dam to 136 ft.

The Supreme Court today directed digitisation of a voluminous Expert Committee’s Report on safety aspects of Mullaperiyar dam which would be the basis for determining validity of an Act passed by K

Floods hit power projects in Himalayan states; plans for more raise safety concerns. Heavy rainfall leading to flash floods in Himalayan rivers in July-end devastated three states—Uttarakhand, Himachal Pradesh and Jammu and Kashmir. It claimed 34 human lives and damaged property extensively. It also brought into focus the precarious condition of more than a dozen dams in the region.

For full text: http://www.downtoearth.org.in/content/reservoirs-losing-capacity

The Kerala Water Resources Department will review the safety aspects of all dams under it.

A conference convened by Minister for Water Resources P. J. Joseph took the decision in view of the overtopping of the Pazhassi Dam early this week. It decided to replace all the shutters of the dam urgently and entrust the work to public sector undertaking Kerala Electrical and Allied Engineering Company. Rs. 7 crore had been sanctioned for the work.

According to this comprehensive compilation of the large dams in India prepared by Central Water Commission, there are 4818 completed large dams and 375 large dams are under construction.

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