InfrastructureMGR era

Mullaperiyar dam safety dispute begins

· Mullaperiyar Dam

Mullaperiyar dam safety dispute begins
Rameshng at Malayalam Wikipedia, CC BY 3.0 · Wikimedia Commons

Kerala's safety fears about Mullaperiyar dam after the 1979 Morvi disaster led Tamil Nadu to cut its storage level to 136 feet and reinforce the structure.

Although it stands in Kerala, the Mullaperiyar dam is run by Tamil Nadu to water the state's southern districts. Following the 1979 collapse of the Morvi dam in Gujarat, the Kerala government questioned whether the old structure was safe, pointing to alleged cracks and leakage. Directed by the Central Water Commission, Tamil Nadu brought the storage level down from 152 feet to 142.2 feet and later to 136 feet, and from 1979 it reinforced the dam with measures such as grouting and cable anchoring. The permitted level turned into the core of a protracted dispute between Tamil Nadu and Kerala, which eventually reached the Supreme Court.

Related events

  1. 1886

    1. 29 Oct 1886Mullaperiyar DamAgriculture

      Periyar lease agreement with Travancore

      A 999-year lease for the Periyar irrigation works, signed by Travancore and the Secretary of State for India, later underpinned the Mullaperiyar dispute.

  2. 1895

    1. 1895Mullaperiyar DamAgriculture

      Mullaperiyar Dam completed

      The Periyar dam, built under John Pennycuick between 1887 and 1895, began diverting water east to the Madurai region of the Madras Presidency.

  3. 1962

    1. 2 Oct 1962Aliyar ReservoirAgriculture

      Aliyar Dam of the Parambikulam-Aliyar Project inaugurated

      Prime Minister Nehru inaugurated the Aliyar Dam, part of the inter-state Parambikulam-Aliyar irrigation project.

  4. 1970

    1. 1970Mullaperiyar DamAgriculture

      Mullaperiyar lease agreement renewed with Kerala

      The 1886 Periyar lease was renewed by Tamil Nadu and Kerala in 1970, with a higher rent and a new charge on power produced from the water.

  5. 2006

    1. 27 Feb 2006Mullaperiyar DamLaw Justice

      Supreme Court allows higher Mullaperiyar level; Kerala passes dam law

      The Supreme Court allowed Tamil Nadu to raise the Mullaperiyar dam's level to 142 feet; Kerala responded with a law capping it at 136 feet.

  6. 2014

    1. 7 May 2014Mullaperiyar DamLaw Justice

      Supreme Court verdict on Mullaperiyar dam

      The Supreme Court allowed Tamil Nadu to raise the Mullaperiyar reservoir level to 142 feet and struck down Kerala's law restricting it.

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