Sela Tunnel Project

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 Sela Tunnel Project Blog Image


The BRO officials recently said that nearly 96 percent of the work on the strategically crucial Sela Tunnel is complete, and it is likely to be inaugurated by year-end.

About Sela Tunnel Project:

  • Location: It is located in the West Kameng district of Arunachal Pradesh.
  • Once completed, the Sela tunnel will be the world's longest bi-lane tunnel at an altitude above 13,000 feet. 
  • It will ensure all-weather connectivity between Guwahati in Assam and Tawang in Arunachal Pradesh.
  • It is being excavated below the Sela Pass on the NH-13 component of the Trans-Arunachal Highway system. 
  • It is being built by the Border Roads Organisation (BRO) under Project Vartak and the tunnel's construction commenced on April 1, 2019.
  • Project Details:
    • Tunnel 1: This single-tube tunnel has a length of 980m.
    • Tunnel 2: This bi-lane tunnel has a length of 1555m. It includes one escape tube for emergencies.
    • RoadsApproach to Tunnel 1 is 7100m, the road between the two tunnels is 1340m, and the approach to Tunnel 2 is 340 m long.


Key Facts about Sela Pass:

  • It is a high-altitude mountain pass located in the Tawang district of Arunachal Pradesh.
  • Elevation4,170 meters above sea level
  • It connects Tawang Valley to the rest of India. 
  • Open throughout the year, Sela Pass is managed by the BRO.


Q1) What is the Border Road Organisation?

The Border Roads Organisation (BRO) is a road construction executive force in India that provides support to Indian Armed Forces. BRO develops and maintains road networks in India's border areas and friendly neighboring countries.

Source: Nearly 96 pc of Sela Tunnel complete, opening expected by year-end: BRO officials