|Client||Queensland Motorways Limited|
|Contract type||Design, construct & maintain|
|Life span||up to 2020|
In 2006, CPB Contractors (formerly Leighton Contractors) in joint venture was awarded the contract for the Gateway Duplication in Queensland, Australia. The project included refurbishment of an existing bridge and construction of a second bridge (south) across the Brisbane River incorporating six lanes and a shared pedestrian and cycle path.
Twenty-four kilometers of the existing Gateway Motorway was upgraded and new sections of the motorway north of the bridges were constructed. The contract also included maintenance of the asset over a 10-year period. In 2010 the bridges were renamed the Sir Leo Hielscher Bridges.