Microtunnelling / West Bengal, India

Raidak River MT

480m · 1200mm ID · GAIL India · West Bengal

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Project Overview

Execution & Technical Scope

TESPL executed a 1200mm internal diameter microtunnel crossing at the Raidak River in West Bengal for GAIL India — at time of completion, India's longest 1200mm MT river crossing.

The geology comprised cobbles and boulders — one of the most demanding ground conditions for microtunnelling, requiring continuous face pressure management and careful cutter head operation.

Site Photos & Visual Records

Trenchless

Raidak River MT - Site Operation

Key Statistics

  • Length480m
  • Diameter1200mm internal diameter (~47.2")
  • Depth13m / 11m
  • GeologyCobbles and boulders
  • EquipmentAVN 1200
  • Client / OwnerGAIL India
  • LocationWest Bengal, India
  • Year Completed2024