Chenani-Nashri Tunnel, also known as Patnitop Tunnel, is a road tunnel in the Indian state of Jammu and Kashmir on NH 44 (former name NH 1A before renumbering of all national highways). It has been inaugurated on 2 April 2017 by Prime Minister Narendra Modi. It is message for the world that India is serious about the development in the Jammu and kashmir. People are happy that more investment has been made in this area by Modi Government.
It is India’s longest road tunnel with a length of 9.28 km (5.8 mi).The original estimate to build the tunnel was ₹2,520 crore (US$370 million), but escalated to a total of ₹3,720 crore (US$550 million).The main tunnel is 13 metres in diametre, while the parallel escape tunnel is 6 metres diameter. The main and escape tunnels are connected by 29 cross passages at intervals of every 300 metres.It is the first tunnel in the country with fully integrated tunnel system.
The tunnel will reduce the distance between Jammu and Srinagar by 30.11 km (18.7 mi) and cut travel time by two hours. Snowfall and avalanches in winter at Patnitop obstructs NH 44 a few times every winter and causes long queues of vehicles – sometimes for days at length. The tunnel will bypass Patnitop, Kud, and Batote and will reduce traffic jams on NH 44 in winter.