World's Longest Highway Tunnel

           Worlds longest highway tunnel is situated in Rohtang which is a part of Himachal Pradesh in India. It become a hotspot of tourist. This tunnel produce a milestone in infrastructure development of India. This tunnel is inaugurated by Prime Minister Shri Narendra Modi. It provides the new strength to the border infrastructure of country.

• Challenge:

Most challenging work is to continue exavate land during snow fall, winter 

• Shockable News:

During the progression of tunnel total 42 labourers are died beacuse of the cloud burst and flash flood on 8 August 2003

                                      

In that project TBM ( Tunnel Boring Machine ) were not used because of the inability to see inside mountain instead of it blasting and digging are used.

                                      

• Highlights:

Length: 9.02 KM

Atal tunnel is above 10,000 feet at Rohatang pass

Shape: Horseshoe

Construction Technique: Drill & Blast with NATM

Tunnel Built Method: New Austrian Tunnelling Method

Emergency tunnel has been integrated in the tunnel which is 2.25 m tall & 3.6 m wide

In that tunnel CCTV cameras, announcement system, vehicular management & pollution monitoring using pollution sensors

Overview:

Atal Tunnel Rohatang