decommissioning

Dams Decommissioning going up globally

All large dams have finite life. What happens to the dams once the useful life of a dam is over? It would need to be decommissioned. Decommissioning of a dam generally refers to[i] complete removal of the dam and its associated structures. This is a very relevant question for India as the third largest dam builder of the world. It becomes even more important as large dams are no longer required or are no longer viable and importance of a flowing river is increasingly appreciated. It needs to be kept in mind that a dam cannot be allowed to remain on the river, without proper maintenance, as such a dam would remain a huge safety hazard for society and economy downstream from the dam.

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Asia

ASIA-2017: Surplus power, cancelled Hydro and dam risks dominate

SOUTH EAST ASIA Rivers are invaluable INTERESTING QUESTION: HOW MANY DIFFERENT WAYS CAN YOU MEASURE A RIVER? “Perhaps the most important – and largely overlooked – measure of a river is its value to the economy and wellbeing of a nation, a region, and its people. Simply put, large healthy, productive rivers like the Mekong and Ayeyarwady (or Irrawaddy) are unifying geographic features that serve as economic juggernauts, essential to long term growth and in maintaining the quality of life for millions of people.”

“These (FLOOD) benefits are valued annually at US$8-10 billion (K10.8 trillion), while floods in the Lower Mekong basin cause a much lower $60-70 million in damage every year.” “Floods and sediment are the artisans of river systems. If you lose them you are left to human-engineered solutions. That is now the only option for the US government in the Mississippi River. A $50-billion program has just been launched to rehabilitate the Mississippi delta. Conserving the natural processes that created it in the first place would have been a much more cost efficient option.” https://www.mmtimes.com/news/rivers-are-invaluable-south-east-asia.html Continue reading “ASIA-2017: Surplus power, cancelled Hydro and dam risks dominate”