GREAT BRIDGES-ENGINEERING MARVELS

Construction technology in recent years has surpassed all imaginations. It has proved that, if man minds, he can do wonders. Various bridges constructed in different parts of the world provide evidence for this achievement. This hub introduces you certain such bridges, which increase our confidence about our engineering skill.

1. EXPRESS WAY OF BANGKONGK:  Longest bridge in the world..Length-54 k.ms.Width-29mts.This is a six-path elevated highway. Construction started in 1998 and surprisingly, it was completed in 2000 May. This is in Bangkongk.

2. DONGHOIBRIDGE: ::It is in China. It is built across the sea. Length-32.5 k.ms .Longest bridge in Asia and longest sea –bridge in the world. It is open for use since Dec 10, 2005. It connects Shanghai mainland and Yang son . Is lifted by cables and enabled for ships to pass below this.

3. KINGFAHDCAUSEWAYBRIDGE:  It connects Behrens and Saudi Arabia. Construction started in 1968 and completed in 1986.Cost -$120 crores.47,000 metric tones of concrete was used.Length-28 k.ms.width-23.5 meters(75 feet).Most attractive to look at.

4 PENANG BRIDGE:  Built across Penang and Seberan in Malaysia. Total length 13.5 k.ms.Open for use in 1985.It is a four-track bridge.

5. VASCO-DA-GAMABRIDGE  :In Portugal. Built across a river.Length-17.2k.ms.Most part of the bridge is based on cables Longest bridge in Europe. It also connects some parts of Lisbon. Open for traffic since May 29, 1998.It is named so, to commemorate 500^th year of Vasco-da- Gama’s discovery of sea-route to India through Europe. It has a six-track path on it and vehicles can at a speed of 120 k.ms per hour.3300 have worked for 3 years to create this bridge.its life is estimated as 120 years.