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Atal Tunnel: PM Modi to inaugurate world’s longest tunnel in Himachal Pradesh

Oct. 1, 2020, 5:02 p.m.

New Delhi: Prime Minister Narendra Modi will inaugurate the Atal Tunnel on October 3 at 10 am in Rohtang, Himachal Pradesh. 

The Atal Tunnel is the longest highway tunnel in the world. The tunnel will reduce the road distance between Manali and Leh by 46 kilometers and will cut travel time between the two places by around 4 to 5 hours.

With a total length of 9 kilometers, this tunnel will connect Manali to the Lahaul-Spiti valley throughout the year. Earlier, the valley was cut off from the rest of the country due to heavy snowfall for about 6 months every year. 

The Atal Tunnel is at an altitude of 3 thousand meters from the sea level. It has been built with ultra-modern facilities in the Pir Panjal Range of the Himalayas.

The tunnel is 10.5 meters wide and also has a 3.6 x 2.25 mounts fire-proof emergency tunnel, built on top of the main tunnel. The Atal tunnel is designed for 1500 trucks per day with a traffic capacity of 3 thousand cars per day and a maximum speed of 80 km/h. It will have uninterrupted power supply including a ventilation system, SCADA controlled fire fighting, lighting and surveillance system.


Tunnel entry barriers have been installed at both the portals of the tunnel. Telephone connections are installed for every 150 MTR of emergency. There is an auto incident detection system with CCTV cameras on every 250 mounts.

The system is designed to check air quality every 1 kilometer. The entire tunnel has an audio broadcasting system ie loudspeaker announcement system. Cameras are also installed every 60 meters.

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