
28/01/2025
Teesta-III Dam Reconstruction in Sikkim Approved Amid Controversy Over Public Hearing Exemption
The Environment Ministry’s Expert Appraisal Committee (EAC) has granted approval for the reconstruction of the Teesta-III dam in Sikkim, more than a year after the catastrophic flood triggered by the South Lhonak glacial lake outburst in October 2023. This disaster led to the loss of 40 lives, left many missing, and impacted over 100 villages.
The new dam, designed as a 118.64-meter-high concrete gravity structure, will replace the original rockfill dam destroyed in the flood. Sikkim Urja Limited, the project operator, plans to significantly increase the spillway’s capacity to handle extreme flood scenarios, raising it from 7,000 cumecs to nearly 20,000 cumecs.
However, concerns regarding the dam’s safety and design persist. A December 2024 site visit by an EAC sub-committee highlighted the need for updated flood risk studies and additional safety measures, including early warning systems and monitoring of glacial lakes and landslide-prone areas. Despite these concerns, the EAC approved the project without holding a new public hearing, arguing that no new land acquisition or displacement is involved. This decision, coming more than 15 years after the last public consultation in 2006, has drawn criticism from environmentalists and local communities.
The reconstruction will be managed by Sikkim Urja, now majority-owned by the Greenko Group.