Rohtang Tunnel: Rohtang Tunnel proposed to built under the Rohtang Pass in the Leh-Manali Highway. Rohtang Tunnel project was announced by Atal Bihari Vajpayee on 2000 and expected completion at 2010. However no work progress had been made till 2009. In June 2010 The chairperson of UPA Sonia Gandhi, declared the drilling of the Rohtang tunnel has been began form Manali. The 8.8 km Rohtang tunnel will be the longest tunnel road in India and will be reduce 46 km distance between Leh and Manali. The Border Roads Organization has estimated to complete the tunnel before 2015 and the approximately cost of Rohtang tunnel will be Rs. 1700 Crore.
Challenges: The tunnel should create an all weather route to Leh and Lahaul & Spiti valley in Himachal Pradesh. Rohtang pass is the major problem to maintain the road communication in winter. Other challenges are disposing the excavated soil, Weather, Temperature, Heavy snowfall, avalanche sites and Trees. The impact on ecology due to cutting down the trees.
Safety Measures: Safety Measures are the major concern, especially in the tunnels. Here are few safety measures ,which need to be taken care in tunnels.
1.Ventilation Fresh air/Fire
4.Sensors to check pollution
7.Electric control room
8.Self escape galleries
Length of Tunnel: 8.8 km
Shape of Tunnel: Horse Shoe shape.
Construction technique: Drill & Blast with NATM
Maximum Speed: 80 km/ph
Approximately Cost: INR 1700 Crore
Expected to complete: 2015
Rohtang pass: Rohtang pass is the highest mountain pass on the on the eastern Pir Panjal range in middle of Himalayas. It is 51 km form manali, and connects Kullu valley with Lahaul and Spiti valleys of Himachal Pradesh. Rohtang pass is open from May to November.This is only way to connect Ladakh so it become very busy during the summer so traffic jams are common as the goods carriers and large number of tourists vehicles try to navigate.