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Dibang Hydropower Project Daylights Diversion Tunnel-3, Enabling Next Construction Phase

The breakthrough clears the way for river diversion to keep the Arunachal Pradesh project on schedule.

Overview

  • NHPC executed the final blast for DT-3 on Tuesday, with Director (Projects) Sanjay Kumar Singh initiating the breakthrough.
  • The daylighting completes excavation of the third diversion tunnel, which NHPC says will enable smooth river diversion works.
  • Senior NHPC leaders, including Narender Kumar and Umesh Kumar Nand, joined contractor L&T on site to acknowledge the coordinated effort.
  • The Dibang Multipurpose Project on the Dibang River in Lower Dibang Valley is designed for 2,880 MW through 12 units of 240 MW each.
  • Upon completion, NHPC expects annual output of over 11,000 million units and significant flood moderation for the Brahmaputra basin.