The Government of Victoria in Australia has received final bids for the A$6bn ($4.49bn) Metro Tunnel and Stations Public Private Partnership (PPP).

Melbourne's Metro Rail Authority will assess the bids received from three shortlisted consortia, which includes both Australian construction firms and those based worldwide.

Continuum Victoria consortium consists of Acciona Infrastructure, Ferrovial Agroman, Honeywell, Downer EDI and Plenary Origination.

Cross Yarra Partnership includes Lendlease Engineering, John Holland, Bouygues Construction and Capella Capital.

Moving Melbourne Together consists of Pacific Partnerships, CPB Contractors, Ghella, Salini Impregilo, Serco and Macquarie Capital.

The shortlisted consortia’s proposals detail plans to build the 9km Metro Tunnel and new underground stations at Arden, Parkville, CBD North, CBD South and Domain.

"The best construction firms in Australia and around the world are lining up to build the biggest rail project in Victoria’s history."

Australia Acting Premier and Public Transport Minister Jacinta Allan said: “The bids are in, early works are approved and we’re getting on with building the Metro Tunnel to run more trains, more often right across Melbourne.”

“The best construction firms in Australia and around the world are lining up to build the biggest rail project in Victoria’s history.”

Early works on the government’s A$10.9bn ($8.16bn) mega-project have received formal planning approval simultaneously.

Piling rigs are on site at Franklin and A’Beckett Streets and construction crews are set to start driving concrete poles deep into the ground reinforcing the walls of the 35m-deep shaft, where the new underground station is planned to be built.

The Metro Tunnel project is expected to create at least 4,700 jobs and construction is expected to begin next year.

The government is expected to award a contract for the PPP by the end of the year.