- Out of 36 failures, 30 in respect of earth dams.
Type of Dam | No of Failure | % Failure |
---|---|---|
Earth dams | 30 | 83.33 |
Composite dams | 3 | 8.33 |
Masonry dams | 3 | 8.33 |
Total | 36 |
Despite more than 83% failure share, risks associated with earth dams not to be heightened (total proportion in India over 85%). no failure recorded in case of concrete dam may not emphasis its safety aspects.
The most common cause of dam failures in India has been breaching – accounting for about 44% of cases – followed by overtopping that accounted for about 25% failures.