Work on an $87 million alternative route for Wyndham Vale residents travelling to and from the Princes Highway is tipped to begin in the next financial year.
Wyndham council chief executive Kelly Grigsby says the first stage of the Ison and Armstrong roads connection is expected to start in 2016-17 and be completed by 2020.
The connection will extend Armstrong Road from Greens Road to Black Forest Road and link it with Ison Road.
“The plans for the construction of Ison Road from the Western interchange, north to the intersection with Armstrong Road, include an overpass of the Melbourne-Geelong railway,” Ms Grigsby said.
Plans for the road connection were first released in June 2013, in a strategy for managing growth in Wyndham.
Ms Grigsby said the council was working with Lend Lease, the Metropolitan Planning Authority and state government to secure funding for the project.
“Wyndham city is … ensuring infrastructure backlogs associated with residential growth are met,” she said.
The state government has already committed $27 million for the railway overpass.
