Contractors have been selected to build the twin tunnel entrances of the Metro Tunnel Project.
A consortium comprising John Holland, CPB Contractors and AECOM will deliver the $1 billion Rail Infrustructure Alliance (RIA) works package, including tunnel entrances in South Yarra and Kensington.
Thousands of passengers are expected to pass through the tunnel entrances every hour, before going underground onto twin 9km stretches of track underneath Melbourne.
Public spaces near the eastern tunnel portal, including South Yarra Siding Reserve, Lovers Walk and Osborne Street Reserve, will be rejuvenated as part of these works before being returned to the local community once tunnel entrance works are complete.
Around 1,000 people will work on the RIA package, which is part of the $11 billion Metro Tunnel project.
Site preparations ahead of portal construction will commence later this year, with most RIA works expected to be finished in line with the completion of the tunnels and stations, by the end of 2025.