Question

which is the longest road bridge of the world

Answer 1

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YOUR ANSWER...

The longest bridge in the world is the Bang Na and Burapha Withi in Thailand.
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Answer 2

The world's longest road bridge meant for vehicular traffic is Bang Na & Burapha Withi Expressway in Thailand, Asia. It is 55 km long spread under the national highway route 34 with a height of 30m from the highway.