St Gotthard Pass, Switzerland. June 2015
The St Gotthard Pass summit region and the world famous Tremolla Road ( also spelt Tremola ) with over 38 hairpin bends on the south side of the pass photographed in June 2015 as the winter snow melted.
Wikipeadia below.
The Gotthard Pass or St. Gotthard Pass (Italian: Passo del San Gottardo) (el. 2106 m) is a mountain pass in the Alps, connecting northern to southern Switzerland. The pass lies between Airolo in the Italian-speaking canton of Ticino, and Göschenen in the German-speaking canton of Uri, and connects further Bellinzona to Lucerne. The region of the Gotthard is an important north-south axis in Europe and is crossed by three major traffic tunnels, all world longest at the time of their construction: the Gotthard Rail Tunnel (1882), the Gotthard Road Tunnel (1980) and the Gotthard Base Tunnel (2016).
Several tunnels provide access through the pass. The 15 km Gotthard Rail Tunnel was the first and opened in 1882 for railway traffic at a cost of around 200 workers' lives (there is uncertainty as to the exact toll). It replaced the pass road, connecting Göschenen with Airolo.[1]
A 17 km motorway tunnel, the Gotthard Road Tunnel opened in 1980. It was closed for two months in 2001 following a fatal fire.
A second rail tunnel through the pass, the Gotthard Base Tunnel, is currently under construction. When completed, it will be the longest rail tunnel in the world at 57 km. This tunnel, combined with two shorter tunnels planned near Zürich and Lugano as part of the AlpTransit initiative, will reduce the 3 hour 40 min rail journey from Zürich to Milan by one hour, while increasing the size and number of trains that can operate along the route because the line is nearly level, compared with the spirals of the older tunnel.