The last stage of the M80 Ring Road upgrade – stretching from Sydney Road to the Greensborough Highway – is expected to start later this year.

The work will complete the road’s $2.25 billion upgrade and is expected to be finished by late 2021.

The upgrade will focus on a four-kilometre stretch from Sydney Road to Edgars Road.

Dedicated lanes will be built from the M80 to Edgars and Sydney roads to remove the dangerous weaving that currently exists with drivers coming off the Craigieburn Bypass.

A two-kilometre section of the road from Plenty Road to the Greensborough Highway will be upgraded from two lanes to three, while the highway interchange will also be upgraded.

Roads Minister Luke Donnellan said the work would improve traffic flow.

“This upgrade project will improve safety and reduce congestion for the 160,000 drivers who use this freeway each day, delivering better journeys for drivers, freight operations and the local community,” he said.

Mr Donnellan said the road will remain open during the works, with lane closures to be confined to off-peak times where possible.

The final stage of the upgrade is expected to cost $290 million and will be jointly funded by the state and federal governments.