There are approximately 320 medium and large dams in Sri Lanka and over 10,000 small dams, most of which were built more than 1,000 years ago. The consequences of a major dam failure in Sri Lanka can be devastating to life, property and the environment.
It happened on 20 April 1986 when the ancient Kantale dam, 50 feet high and over 13,000 feet long, breached. Its waters rapidly flooded several villages downstream, killing 127 people and destroying over 1,600 houses and paddy lands. This video revisits the scene 19 years later to gather memories and opinions of the affected people and engineers involved.
The video was part of a 2005 study on dam safety by LIRNEasia, Vanguard Foundation, Sri Lanka National Committee of Large Dams and Sarvodaya. Its final report asked: if there were to be a catastrophic dam failure in Sri Lanka today, is there a warning system in place to detect the failure and issue timely warnings? Have the downstream communities participated in evacuation drills and know what action needs to be taken when a warning is issued? [Full report at http://tiny.cc/DamSafe]
Reason for the dam break is the construction of a pump house on the dam by the National water supply and drainage board ignoring the protest made by Eng .A.J.P.Ponrajah then Director of Irrigation.The NWSDB used the political power of Mr.R.Premadasa to over rule the rights of the Irrigation Department.When the head of the department was not approving the project, NWSDB used the signature for consent by a junior officer (GJPG)
bkjaya1952 7 months ago