The 842-metre Sheikh Zayed Bridge was officially opened by Sheikh Khalifa, the President of the UAE.
Spanning the Maqta Channel, it is the third bridge to link Abu Dhabi to the mainland.
The bridge took almost eight years to complete, used more than 52,000 tonnes of steel and 200,000 cubic metres of concrete, and was designed by Zaha Hadid.
The largest arch rises 63 metres above the 68-metre wide road.
It was scheduled for completion in 2006, but was hit by delays and budget overruns.
Work began in 2003, with the Dh600 million cost increasing to Dh1 billion.
Jobs figures were not available from Abu Dhabi Municipality.
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