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Atal Rohtang: A Look At The Longest High-Altitude Road Tunnel In The World

After a long struggle of almost ten years, the longest high-altitude road tunnel is now built. It is carved out under the Rohtang Pass. The tunnel is scheduled to be inaugurated by Prime Minister Narendra Modi by the end of September. The 8.8 km-long horseshoe-shaped single-tube two-lane tunnel is the world's longest motorable tunnel at over 3,000 metre above sea level.

Anuj Tiwari Updated on Oct 09, 2020, 12:49 IST

After a long struggle of almost ten years, the longest high-altitude road tunnel is now built. It is carved out under the Rohtang Pass. The tunnel is scheduled to be inaugurated by Prime Minister Narendra Modi by the end of September. The 8.8 km-long horseshoe-shaped single-tube two-lane tunnel is the world's longest motorable tunnel at over 3,000 metre above sea level.

A 10-Year-Long Dream

After a long struggle of almost 10 years, the longest high-altitude road tunnel is now ready.?

Heavy snowfall in the Rohtang Pass area is a major concern, especially on the approach roads to the main tunnel. To prevent any damage to the roads and to ensure the safety of the roads and tunnel users alike, avalanche control structures are being constructed.?

Sensors to check the pollution level will keep on updating the data and if the record is above the desired level, then the quantity of fresh air injected inside the tunnel would be increased. Pollution level will be controlled within 90 seconds with two heavy duty fans-each on both openings of the tunnel-that will be installed to inject fresh air inside.

Semi-Transverse Ventilation System

The tunnel will have a semi-transverse ventilation system, where large fans would separately circulate air throughout the tunnel length.?

Maximum Speed Limit: 80 Km Per Hour

Max Traffic Expected

3,000 petrol cars a day and 1,500? trucks a day.

See More Photos

Anuj Tiwari writes stories for SEO and is a Youtube wizard. An engineer turned social media champ, he keeps a track of all that goes around the world. His interest areas include historic events, political and social-sciences.

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