Gotthard Road Tunnel Opens in Switzerland as World’s Longest Highway Tunnel, September 5, 1980
The Gotthard Road Tunnel opens in Switzerland as the world's longest highway tunnel at 16.9 kilometres (10.5 mi) stretching from Göschenen to Airolo. Date: September 5, 1980 Read more on Wikipedia → 📅 Other events on September 5 📅 Events on this day in 1980 📅 On This Day (Today)