"The tunnel has an efficient, transverse ventilation system. There are inlets bringing fresh air at 8-meter intervals and outlet for exhaust every 100 meters. There is also a fully-integrated control system with ventilation, communication, power supply, incident detection, SOS call box and fire-fighting,” said a document of the Ministry of Road Transport & Highways.
Here's a video of landmark— Frank Noronha (@DG_PIB) 23 марта 2017 г.
Chenani-Nashri Tunnel, the longest highway tunnel in India, to be inaugurated soon: https://t.co/Fbhc6dLVCS
The Indian government has built the tunnel at a cost of US$ 559 million. The maximum height permitted in the tunnel is 5 meters and for checking the height, special sensors have been installed just before the toll points at both ends.
“An ideal example of the ‘Make in India’ and ‘Skill India’ initiative, the 9 km long, twin-tube, all-weather tunnel between Udhampur and Ramban in Jammu & Kashmir is not only India’s longest highways tunnel but also Asia’s longest bi-directional highways tunnel. It is built at an elevation of 1,200 meters on one of the most difficult Himalayan terrains.”
India’s Border Road Organization had also submitted a proposal to extend this tunnel upto Gurez, which will double the length of tunell from 9 kilometers to 18 kilometers.
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