North East Frontier Railway (Tunnel 21-22)


Mualkhang & Sairang, Mizoram State


Northeast Frontier Railway

Date of Completion

December 2017

Value of Work

89.94 Crores

Scope of Work

Construction of Single Line BG Tunnel no. 21 ( App. Length 630 RM ) at Km. 39.507 to Km. 40.137 & Tunnel No. 22 (App.Length 178 RM ) at Km. 42.75 to Km. 42.930 in
between Station Mualkhang & Sairang in connection with construction of New Railway Line Project Bhairabi – Sairang (Mizoram) of NF Railway (Construction)

Salient Features

  • Method of Tunneling : NATM
  • Length of Tunnel : 630 Meters & 204 Meters
  • Underground Excavation : 56,500 Cum (App.)
  • Open Excavation : 537000 Cum (App.)
  • Underground Shotcrete : 10,450 Cum (App.)
  • Underground Concrete : 13, 100 Cum (App.)
  • Steel : 2612.00 MT (App.)

Mizoram BG Railway Line Bridge

Sevoke Railway Tunnel Project

Arun-3 Hydroelectric Project (900 MW)

Western Railway (Indore) – Tunnel No.1

Satna-Panna New BG Line Project

Likhu-4 Hydroelectric Project

Lower Solu Hydroelectric Project (82 MW)

Lower Solu Hydroelectric Project (82 MW)

Telengiri Irrigation Project (Spillway)

Telengiri Irrigation Project (Periphery Road)

Telengiri Irrigation Project (Earth Dam)

Telengiri Irrigation Project (Canal)

RET Irrigation Project (Spillway)

Dikchu Hydroelectric Project (Dam)

North East Frontier Railway (Tunnel 12)

North East Frontier Railway (Tunnel 21-22)

North East Frontier Railway (Tunnel 23)

Rengali Left Branch Canal

Dikchu Hydroelectric Project (Tunnels)

Kalpong Hydroelectric Project

Lower Suktel Irrigation Project (Spillway)

Larji Hydroelectric Project

Lumding-Silchar Gauge Conversion Project (Tunnels 5-6)

Lumding-Silchar Gauge Conversion Project (Tunnel 7)

Lower Suktel Irrigation Project (Earth Dam)

Cheligada Irrigation Project (High Level Bridge)