Thousands of dams in India will become 50 years old by 2025. Many countries have thousands of old dams, which can pose a threat to the future. This has been revealed in the United Nations Aging Water Infrastructure Report. The report claimed that by 2050, thousands of people around the world will be demoralized by dams built in the 20th century.
According to the report, around 58,700 dams built around the world were built between 1930 and 1970. Their design is such that they can still run 50–100 years. In 50 years, aging in a concrete-bound dam begins to show weakness.
In the world, 55 percent i.e. 32,716 dams are in four Asian countries, China, India, Japan, and South Korea. In India, 1115 large dams will be older than 50 years in 2025. Similarly, 4250 dams will be 50 years old by 2050 while there are 64 dams that will be more than 150 years old by 2050.
3.5 million people of Kerala are in danger
According to the report, 3.5 million people are at risk from the Mullaperiyar Dam in Kerala, which was constructed 100 years ago. This dam can cheat at any time. The danger to more and more people is because the dam structure is weakening considerably over time. Such dams are in large numbers worldwide which can pose a threat to humans.
US: 90,580 dams 50 years old
According to the report, 90,580 dams in the US are 56 years old. More than 85 percent of the dams have crossed the age limit is 2020 but they are being used. According to the report, 1275 dams have been removed from 21 states of the US in the last 30 years. Out of this, in 2017 alone 80 dams have been removed.