Located in the Andes mountain range, in Peru, the Punta Olimpica Tunnel is one of the highest vehicular tunnels in the world, at an elevation of 4.735m (15,535ft) above the sea level.
The tunnel is asphalted. It has a length of 1,384 meters (0.860 miles), 7,20 meters wide and 6,5 meters high. It links the cities of Carhuaz, San Luis and Chacas. The new road was opened in 2013 and shortened travel time for the roughly 80 km stretch from 9 hours down to about 2.5 hours.
The tunnel opened in August 2013. Do not take this drive if you have respiratory problems or any type of heart condition. Most people feel altitude sickness at around 2,500-2,800 meters. Extremely low oxygen for engine combustion. A major hazard of altitude is the sickness that can indiscriminately affect anyone regardless of age or fitness. The high elevation with its risk of altitude sickness, weather concerns, steep road grade, and overall inaccessibility make the travel dangerous and difficult. Open all year round with possible snow closures.
Pic: By Manuel Roca - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=28417844