It’s the longest freeway tunnel on the earth. The strategically essential tunnel is 9.02 km lengthy and it connects Manali to Lahaul-Spiti valley all year long. The valley was earlier lower off for about six months yearly because of heavy snowfall.
The tunnel is constructed with ultra-modern specs within the Pir Panjal vary of Himalayas at an altitude of three,000 metres (10,000 toes) from the Imply Sea Degree (MSL).
The south portal (SP) of Atal Tunnel is situated at a distance of 25 km from Manali at an altitude of three,060 metres, whereas the north portal (NP) of the tunnel is situated close to village Teling, Sissu, in Lahaul Valley at an altitude of three,071 metres.
It’s a horse shoe formed, single-tube double lane tunnel with a roadway of 8 metres and has an overhead clearance of 5.525 metres, officers mentioned.
The tunnel, constructed at a price of about Rs 3,300 crore, is extraordinarily important from the standpoint of the nation’s defence, they mentioned.
The BRO labored relentlessly to beat main geological, terrain and climate challenges that included essentially the most tough stretch of the 587-metre Seri Nalah Fault Zone. The breakthrough from each ends was achieved on October 15, 2017.
Speaking concerning the tunnel, a BRO official mentioned it supplies a phone facility at each 150 metre of its stretch, a fireplace hydrant each 60 metre, emergency exits each 500 metre, turning cavern each 2.2 km, air high quality screens each 1 km, broadcasting system and automated incident detection system with CCTV cameras each 250 metre.
The Atal Bihari Vajpayee authorities had taken the choice to assemble the strategic tunnel beneath the Rohtang Cross on June 3, 2000, and the muse stone for the entry street to the south portal of the tunnel was laid on Might 26, 2002.
Vajpayee bought the thought for establishing the tunnel on a suggestion from his good friend Arjun Gopal of Tashi Dobhe village in Lahaul, Himachal Pradesh Chief Minister Jai Ram Thakur had mentioned.
The Modi authorities determined to call the Rohtang Tunnel as Atal Tunnel in December 2019 to honour the previous prime minister who had handed away the earlier yr.