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Lumding-Silchar Gauge Conversion (Tunnel 7)

  • Location : Mahur, N.C. Hills, State Assam
  • Date of Completion : September 2014
  • Client : Northeast Frontier Railway
  • Value of Work : 140 Crores
  • Scope of Work : Construction of Tunnel No.7 including earthwork in formation to make profile as per BG standard and other miscellaneous works at the approaches in connection with Lumding – Silchair Gauge Conversion Project.

Salient Features

  • Length of Tunnel : 1687.00 meters
  • Underground Excavation : 100000 Cum
  • Open Excavation : 580000 Cum
  • Underground Concrete : 50000 Cum
  • Permanent Steel supports : 5725.00 MT