Thursday, 13 January 2011

10 Longest Bridges Of The World






Engineers have really proved themselves over the period of time. They have built most unbelievable bridges around the globe, they have started to show their incomparable skills right from Europe and America. Today, the wonders of Engineering can be seen everywhere  in the world. Presenting some of the most unbelievable bridges made so far.

 

 

1. Penang Bridge

The Penang Bridge is a dual-carriageway toll bridge that connects Gelugor on the island of Penang and Seberang Prai on the mainland of Malaysia on the Malay Peninsula. The bridge is also linked to the Norht-South Expressway in Prai and Jelutong Expressway in Penang. The total length of the bridge is 8.4 miles, making it among the longest bridges in the world, the longest bridge in the country as well as a national landmark. PLUS Expressway Berhad is the concession holder which manages it.

 

 

 

 

2. Chesapeake Bay Bridge

The Chesapeake Bay Bridge is also known as the Bay Bridge. It was built in 1952 and named the William Preston Lane, Jr. Memorial Bridge after William Preston Lane, Jr. who, as governor of Maryland, implemented its construction.
It is a major dual-span bridge in the state of Maryland; spanning the Chesapeake Bay, built to connect the state’s Eastern and Western Shore regions. At 7 km in length, the original span was the world’s longest continuous over-water steel structure when it opened in 1952.

 

 

 

 

3. San Mateo Hayward Bridge


The San Mateo Hayward Bridge is also called as San Mateo Bridge. It is linking the San Francisco Peninsula with the East Bay. The bridge’s has its eastern end in Hayward and western end in Foster city which is recently emerged into the urban world within U.S. The bridge is maintained by Caltrans which is a state highway agency.

 

 

 

 

4. King Fahd Causeway

The King Fahd Causeway built to connect Saudi Arabia and Bahrain. It is a bridge combination connecting Khobar, Saudi Arabia, and the island nation of Bahrain.

 

 

 

 

5. Donghai Bridge

Donghai Bridge is the longest cross-sea bridge in the world and the longest bridge in Asia. It connects Shanghai and the offshore Yangshan deep-water port in China. This Bridge is  20.2 miles or 32.5 km long. It was completed on December 10, 2005. Largest Cable-stayed sections, with span of 420 m to allow for the passage of large ships.

 

 

 

 

6. Confedration Bridge

The Confederation Bridge is 12.9 km or 8 mile long bridge opened on 31 May 1997. It  is a bridge spanning the Abegweit Passage of Northumberland Starit, linking Prince Edward Island with mainland New Brunkswick, Canada.
Its construction took place from all the fall of 1993 to the spring of 1997, costing $1.3 billion and completed on December 1997.

 

 

 

 

7. Seven Mile Bridge

The Seven Mile Bridge, in the Florida Keys, runs over a channel between the Gulf of Mexico and the Florida Strait, connecting Key Vaca in the Middle Keys to Little Duck Key in the Lower Keys.

 

 

 

 

8. Vasco da Gama Bridge


The Vasco da Gama Bridge is a cable-stayed bridge flanked by viaducts and roads that spans over the Tagus River near Lisbon, capital of Portugal. It is the longest bridge in Europe with a total length of 17.2 km or 10.7 miles.

 

 

 

 

9. Rio Niteroi Bridge



Its official name is “President Costa e Silva Bridge”. It connects the cities of Rio de Janeiro and Niteroi in Brazil. It is currently the longest pre-stressed concrete bridge in the south hemisphere. From its completion in 1974 until 1985 it was the world’s second longest bridge in the world. Actual construction work begun in January 1969, and completed in March 1974.

 

 

 

 

10. Bayonne Bridge

The Bayonne Bridge is the fourth longest steel arch bridge in the world, and was the longest in the world at the time of its completion. It  connects Bayonne , New Jersey with Staten island New York.

The bridge was designed by master bridge-builder Othmar Amman and the Architect Cass Gilbert. It was built by the Port of New York authority and opened on November 15, 1931. The primary purpose of the bridge was to allow vehicular traffic from Staten island to reach Manhattan via the Holland Tunnel.

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