Oger submitted a bid of SR 1,183 million ($315 million), while the second offer came from a joint venture of the local Al-Fahd for Trading & Contracting, with Turkeys Yuksel at SR 1,782 million ($475 million).

The scheme, which is considered fundamental to easing congestion on the capitals roads, centres on transforming the street into a freeway with three underpasses, a 1.7-kilometre-long tunnel, major landscaping and associated works. Work is scheduled to take about 36 months to complete.

Germanys Albert Speer & Partner is the lead consultant. Saudi Consulting Services (SaudConsult) is the local consultant. Germanys BW+P is the landscape consultant. Dorsch Consult is the electrical consultant. Arriyadh Development Authority (ADA) is the client.

ADA has also selected a team of consultants to carry out a comprehensive study to redevelop the Al-Olaya-Abha corridor in Riyadh. Germanys Dornier Consulting, with Canadas Busby Perkins & Will and the local Omrania & Associates is working on the 18-month contract.

The projects form part of a wider programme to expand and upgrade Riyadhs road network. ADA recently completed a comprehensive road masterplan, which includes the addition of 300 kilometres of freeways and 450 kilometres of major road arteries around the city. The projects will be divided up between ADA, the Transport Ministry and various city municipalities.