December 9, 2005 The Sunniberg Bridge near eastern Switzerland’s Alpine village of Klosters was officially opened to vehicular traffic nine years after its completion. (“Sunniberg” means “sunny mountain” in German.) This curved multi-span extradosed bridge – a structure that blends the main components of both a cable-stayed bridge and a prestressed box girder bridge –... Continue Reading →

July 8, 2013 The Sveti Ilija Tunnel in central-southern Croatia was officially opened. This tunnel carries the D76 state road through a 5,387-foot (1,642-meter)-tall mountain ridge known as Sveti Ilija (Saint Elijah). This ridge, which is part of the Biokovo mountain range, was named after a prophet in the Old Testament. The Sveti Ilija Tunnel... Continue Reading →

June 27, 1998 In the northernmost region of western Norway, the Stordal Tunnel in Møre og Romsdal county first went into service. This road tunnel was officially opened by Kjell Magne Bondevik (born in 1947), who served as prime minister of Norway between 1997 and 2000 and again from 2001 to 2005. Measuring 11,580 feet... Continue Reading →

February 11, 1933 In Allegheny County, a suspension bridge built in Pittsburgh’s South Side was opened to traffic without any formality or notable amount of fanfare.  This bridge’s low-key debut was reported in the next day’s edition of the Pittsburgh Press. “Undedicated and without ceremony, the county’s new bridge across Monongahela River at Tenth Street... Continue Reading →

September 17, 1871 Within the Alps mountain range in Europe, a tunnel connecting the French commune of Modane with the Italian town and commune of Bardonecchia was officially opened to rail traffic. This transportation route runs through the region of the massif known as Mont Cenis and beneath both the Pointe du Fréjus (a mountain)... Continue Reading →

July 11, 2005 On the north end of the island of Montserrat – a British Overseas Territory in the Caribbean Sea – an airport in the village of Gerald’s first went into service. The formal opening of this airport took place nearly five months after it had been dedicated by Anne, Princess Royal, daughter of... Continue Reading →

June 25, 1982 In Switzerland, the Furka Base Tunnel connecting the village of Oberwald with the municipality of Realp was opened. At the time, this structure was the world’s longest narrow-gauge tunnel. This 9.6-mile (15.4-kilometer)-long rail tunnel, which took nine years to build in the face of formidable engineering challenges, has made it possible for the Matterhorn-Gotthard-Bahn... Continue Reading →

May 31, 1969 A major tunnel that is located just south of the Belgian city of Antwerp and had been built under the Scheldt river first went into service when it was opened to motor vehicle traffic. Another milestone for this tunnel took place just a little over eight months later when it was opened... Continue Reading →

March 25, 2007 A two-tunnel tollway in Sydney, Australia’s most populous city and the capital of the state of New South Wales (NSW), was opened two months ahead of schedule. This structure, collectively called the Lane Cove Tunnel, serves as a link between the section of M2 Hills Motorway that is in the suburb of... Continue Reading →

March 6, 2009 Construction began on a 3.2-mile (5.1-kilometer) light rail tunnel in Seattle. This structure is a key connection within Sound Transit’s Link light rail system serving that metropolitan area. The two-bore tunnel is specifically part of the University Link of the 1 Line of that system and carries trains running between the Downtown... Continue Reading →

Create a website or blog at WordPress.com

Up ↑