Zoji-la Tunnel
Zoji-La Tunnel, the world's longest single-tube bi-directional road tunnel at the highest altitude, is an under-construction Himalayan tunnel in India under the Zoji La pass between Sonamarg in Ganderbal district of Jammu and Kashmir and Dras in Kargil district of Ladakh. This project is being executed by a Hyderabad-based engineering company, MEIL. It is 9.5 m wide, 7.57 m high and 13.153 km long, horseshoe-shaped single-tube, 2 lane road tunnel at the height of around 11,578 feet above sea level.