The Leighton Abigroup Joint Venture (LAJV) has won the $240m contract to deliver extra upgrade works on the Gateway Motorway in Australia.

The works are an addition to the existing 4km Gateway Upgrade Project, the Australia-based group said.

The work involves the extension of the motorway from four to six lanes, improvements to road alignment and road interchange.

Motorway extension work is scheduled to be completed by mid 2011.