Rosi Mittermeier is the highest road tunnel in Europe

Rosi Mittermeier Tunnel is a high mountain tunnel at an elevation of 2.830m (9,285ft) above the sea level located in the Ötztal Valley, in the Austrian state of Tyrol. It’s said to be the highest road tunnel in Europe.

Set high in the Ötztal Alps, the tunnel carries the 15km-long Panoramic Glacier Road, also known as Ötztal Glacier Road (Ötztaler Gletscherstraße in German). The tunnel was named after the ski racer Rosi Mittermeier, and is 1.729m long.
Built in 1982, the tunnel is totally paved. The highest point of this toll road is at the southern end of the tunnel, at an elevation of 2.830m (9,285ft) above the sea level. Road and tunnel have been built to accommodate two lanes in each direction, and the average incline is 11 %, and therefore of no problem for cars or buses. The road is accessible for heavy trucks (lorries up to 38 tons) and buses without any problem.

The tunnel links Rettenbach Glacier and Tiefenbach Glacier zones. Both have extensive car parks. Due to the unique location of the Glacier Road amidst high Alpine regions, there exists always a risk of sudden unexpected precipitation or drop in temperature. It is warmly recommended to carry the necessary equipment at any time of the year. Snow chains in winter months are advisable, as it can snow quite unexpectedly in these high alpine climates. The road is only open when considered not dangerous (avalanches). This can sometimes mean that a second road block is possible. Snow chains and steel tracks might be required troughout the year.
Pic: By J Abele (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons