Atal Tunnel: PM Modi to inaugurate world's longest highway tunnel on Oct 3; check out its unique features
Atal tunnel is built with ultra-modern specifications in Pir Panjal range of Himalayas at an altitude of 10,000 ft from sea level. It'll reduce road distance between Manali and Leh by about 46km and time by about 4 to 5 hours

- Oct 1, 2020,
- Updated Oct 1, 2020 5:03 PM IST
Prime Minister Narendra Modi will inaugurate the world's longest highway tunnel, named Atal Tunnel, at Rohtang Pass, Himachal Pradesh, at 10 AM on October 3. The 9.02-km long tunnel will now connect Manali to Lahaul-Spiti valley throughout the year. It's a big relief for travellers as earlier the valley was cut off for about 6 months each year owing to heavy snowfall at Rohtang Pass.
The tunnel is built with ultra-modern specifications in the Pir Panjal range of Himalayas at an altitude of 3,000 Mtrs (10,000 ft) from the sea level. It'll reduce the road distance between Manali and Leh by about 46km and the time by about 4 to 5 hours. The Atal Tunnel's south portal is located at a distance of 25km from Manali at an altitude of 3,060 mtrs, while the north portal near village Teling, Sissu, in Lahaul Valley (3,071 mtrs altitude).
It is horse shoe shaped, single-tube double lane tunnel with a roadway of 8 mtrs, and has an overhead clearance of 5.525 mtrs. Atal Tunnel is 10.5-metre wide and has a 3.6 x 2.25 mtrs fire proof emergency egress tunnel built into the main tunnel itself. The tunnel has been designed for traffic density of 3,000 cars per day and 1,500 trucks per day with max speed of 80 km/hr.
The tunnel has been made with the state of the art electromechanical system, including semi-transverse ventilation system, SCADA controlled firefighting, illumination and monitoring system.
After attending the inauguration function of the Atal Tunnel at South Portal, Manali, on Sunday, Prime Minister Modi will take part in public functions at Sissu in Lahaul Spiti and at Solang Valley.
Prime Minister Narendra Modi will inaugurate the world's longest highway tunnel, named Atal Tunnel, at Rohtang Pass, Himachal Pradesh, at 10 AM on October 3. The 9.02-km long tunnel will now connect Manali to Lahaul-Spiti valley throughout the year. It's a big relief for travellers as earlier the valley was cut off for about 6 months each year owing to heavy snowfall at Rohtang Pass.
The tunnel is built with ultra-modern specifications in the Pir Panjal range of Himalayas at an altitude of 3,000 Mtrs (10,000 ft) from the sea level. It'll reduce the road distance between Manali and Leh by about 46km and the time by about 4 to 5 hours. The Atal Tunnel's south portal is located at a distance of 25km from Manali at an altitude of 3,060 mtrs, while the north portal near village Teling, Sissu, in Lahaul Valley (3,071 mtrs altitude).
It is horse shoe shaped, single-tube double lane tunnel with a roadway of 8 mtrs, and has an overhead clearance of 5.525 mtrs. Atal Tunnel is 10.5-metre wide and has a 3.6 x 2.25 mtrs fire proof emergency egress tunnel built into the main tunnel itself. The tunnel has been designed for traffic density of 3,000 cars per day and 1,500 trucks per day with max speed of 80 km/hr.
The tunnel has been made with the state of the art electromechanical system, including semi-transverse ventilation system, SCADA controlled firefighting, illumination and monitoring system.
After attending the inauguration function of the Atal Tunnel at South Portal, Manali, on Sunday, Prime Minister Modi will take part in public functions at Sissu in Lahaul Spiti and at Solang Valley.