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On This Day | June 30

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2011
Danyang-Kunshan Grand Bridge opened

The Danyang-Kunshan Grand Bridge is a 164.8-kilometre-long (102.4 mi) viaduct on the Beijing-Shanghai High-Speed Railway. It is the longest bridge in the world.

2011
Tianjin Grand Bridge opened

Tianjin Grand Bridge is a railway viaduct bridge that runs between Langfang and Qingxian, part of the Beijing-Shanghai High-Speed Railway. It is one of the longest bridges in the world with a total length of about 113.7 kilometers (70.6 mi). It was completed in 2010 and opened in 2011. At the time Guinness World Records recorded it as the second longest bridge in the world.

2011
Qingdao Jiaozhou Bay Bridge opened

Qingdao Jiaozhou Bay Bridge is a 26.7 km (16.6 mi) long roadway bridge in Qingdao, Shandong province, China, which is part of the 41.58 km (25.84 mi) Jiaozhou Bay Connection Project. The longest continuous segment of the bridge is 25.9 km (16.1 mi), making it one of the longest bridges in the world.

2009
Bandra-Worli Sea Link was completed

The Bandra-Worli Sea Link is a 5.6 km long, 8-lane wide bridge that links Bandra in the Western Suburbs of Mumbai with Worli in Central Mumbai. It is the longest sea bridge, as well as the 4th longest bridge in India after Bhupen Hazarika Setu, Dibang River Bridge and Mahatma Gandhi Setu. It is a cable-stayed bridge with pre-stressed concrete-steel viaducts on either side. It was planned as a part of the proposed Western Freeway that would link the Western Suburbs to Nariman Point in Mumbai's main business district, but is now planned to become part of the Coastal Road to Kandivali.

1984
Minsk Metro opened

The Minsk Metro is a rapid transit system that serves Minsk, the capital of Belarus. Opened in 1984, it presently consists of 3 lines and 33 stations, totaling 40.8 kilometres (25.4 mi). In 2013, the system carried 328.3 million passengers, which averages to a daily ridership of approximately 899,450.

1919
John William Strutt, 3rd Baron Rayleigh died

John William Strutt, 3rd Baron Rayleigh was a British mathematician and physicist who made extensive contributions to science. He spent all of his academic career at the University of Cambridge. Among many honours, he received the 1904 Nobel Prize in Physics "for his investigations of the densities of the most important gases and for his discovery of argon in connection with these studies." He served as president of the Royal Society from 1905 to 1908 and as chancellor of the University of Cambridge from 1908 to 1919.

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