Project began in October 2007

Total cost: About Dh5 billion

Contract 1

Construction of a tunnel stretching from Dalma Street to Corniche area and Mina Port. Also involved the widening of surface roads across seven signalised intersections.

Cost: Dh 3.1 billion.

Opened in December 2012

Contract 2

Construction of two underpasses, one near Khalifa Park and another near 31st Street.

Cost: Dh830 million

Contract 3

Construction of one bridge to Reem Island, and two underpasses.

Cost: Dh820 million

Contract 4

Widening of Al Salam Street from three lanes to four lanes up to the intersection with 19th Street.

Cost: Dh67 million

Source: Municipality of Abu Dhabi City