Significant tunnel breakthrough achieved in Sivok-Rangpo rail project

A landmark achievement has been recorded in the Sivok-Rangpo Rail Project (SRRP) with the successful completion of tunnel no. T-04/P2 in the Darjeeling District of West Bengal. Spanning a length of 3948 metres, this tunnel breakthrough signifies the completion of all Adit tunnels within the project, marking a major milestone in its progression.

More Details:

In a major milestone, tunnel no. T-04/P2 (3948 metres long) to the Adit of the Sivok – Rangpo Rail Project (SRRP), located in Darjeeling District of West Bengal, achieved a breakthrough. With the tunnel breakthrough, mining activities have been successfully accomplished in all the Adit tunnels of this project.

Brief about Tunnel Breakthrough:

  • The length of the Main Tunnel of T-04 is 3948 metres, along with an Evacuation Tunnel of length 599 metres situated near the Hanuman Jhora in Darjeeling District, West Bengal.
  • The main tunnel traverses through vulnerable and challenging geological and seismic conditions of the Younger Himalayas.
  • Like all other tunnels in the SRRP, to counter vulnerability of the ground mass, the latest and most sophisticated tunnelling technology, i.e., New Austrian Tunneling Method (NATM) has been used here.

Brief about Sivok – Rangpo Project:

  • The Sivok – Rangpo new rail link project connecting Sivok (West Bengal) and Rangpo (Sikkim) is about 45 kms long and is characterised by 14 nos. tunnels, 13 major bridges, 09 minor bridges and 5 nos. stations.
  • The length of the longest tunnel (T-10) is 5.3 km and length of longest bridge (Br-17) is 425 metres. About 38.65 kms of the entire project alignment is passing through tunnels. 93% of the tunnelling work has already been completed.

Progress Till Date:

  • At present final lining has been completed in tunnel T-14 & T-09 and is under progress in tunnel T-02, T-03, T-05, T-06, T-07, T-10, T-11 and T-12.
  • Total 13.13 km lining has been completed till date. Work in all sections is being carried out round the clock 24×7.
  • This is o­ne of the most prestigious o­ngoing National Projects in India and o­n completion of this project, first time the state of Sikkim will be connected via railways.
  • This rail network o­n its completion is aimed to provide alternate and stable connectivity to the state of Sikkim.
  • At present all the activities related to construction of tunnels, bridges and station yards are going o­n war footing for early completion of the project.

Construction activities, including the development of tunnels, bridges, and station yards, are being aggressively pursued to ensure the early completion of this critical infrastructure project.

Source: Northeast Frontier Railway – Press Release | Images Credit (representational): MoR

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