India has 4,407 large dams of which more than 1,000 would be 50 years or older by 2025, a new study has shown. Older dams pose greater safety risks, cost higher in terms of maintenance and have declining functionality due to sedimentation, stated a study by the Canada-based United Nations University Institute for Water, Environment and Health, released in January. Climate change is also likely to accelerate the ageing of dams, it said.
India must conduct a cost-benefit analysis of its ageing dams, and conduct timely safety reviews in order to ensure their operational and ecological safety, as well as the safety of those who inhabit the areas downstream, experts told IndiaSpend.
Feb 14 2021, 5:01 PM
February 12 2021, 5:03 AM
February 14 2021, 5:01 PM
(Bloomberg) The flash flood in Indiaâs Himalayan state of Uttarakhand which killed at least 34 people at the weekend has raised public anger over hydropower projects that the government considers essential to decarbonize the nationâs electricity generation.
(Bloomberg) The flash flood in Indiaâs Himalayan state of Uttarakhand which killed at least 34 people at the weekend has raised public anger over hydropower projects that the government considers essential to decarbonize the nationâs electricity generation.
The deluge triggered by a glacial burst near a small hamlet in the north Indian state last Sunday swept away bridges and hydropower stations, including the 520-megawatt Tapovan Vishnugad dam of NTPC Ltd. that was nearing completion. Experts say the incident, induced by the effect of global warming on melting glaciers, was made worse by construction of infrastructure.
Read more about Uttarakhand floods: Death toll rises to 56, over 150 missing; top updates on Business Standard. Uttarakhand flash flood: Since February 7, rescuers are trying to locate missing people, even as the death toll continues to rise. Track latest updates on Uttarakhand disaster
Hydropower Dams Face Backlash After Himalayan Flood Tragedy By Rajesh Kumar Singh | February 12, 2021
The flash flood in India’s Himalayan state of Uttarakhand which killed at least 34 people at the weekend has raised public anger over hydropower projects that the government considers essential to decarbonize the nation’s electricity generation.
The deluge triggered by a glacial burst near a small hamlet in the north Indian state last Sunday swept away bridges and hydropower stations, including the 520-megawatt Tapovan Vishnugad dam of NTPC Ltd. that was nearing completion. Experts say the incident, induced by the effect of global warming on melting glaciers, was made worse by construction of infrastructure.
The riverbed of the Rishiganga and the Dhauliganga up to Srinagar nearly 100km has been completely disturbed due to siltation, according to scientists
Dehradun: Sunday s flash flood in Chamoli has not only sucked away human lives and destroyed hydel projects but also has shaken the river ecology immensely, so much so that it will take a year s break from human interference to regenerate, say experts. The riverbed of the Rishiganga and the Dhauliganga up to Srinagar nearly 100km has been completely disturbed due to siltation, according to scientists.
The macrobenthos (organisms that live at the bottom of a water column and are visible to the naked eye) and insects, which are also known as aquatic ‘ecosystem managers’ of the rivers are all gone with the disaster. They will take at least a year to come back again.