Sebastopol's Albert Street and Hertford Street intersection will be the first big project to get under way, as part of the state government's promised upgrades to traffic trouble spots across Ballarat.
"Service location and investigative digging" begins next week, from February 17, according to Regional Roads Victoria's website, before traffic lights are installed.
There will be traffic management in place, including speed reductions and lane closures.
The relocation works are expected to begin properly by mid-2020, ahead of major construction later this year.
WHY ARE THESE INTERSECTIONS GETTING UPGRADES? SEE BEFORE AND AFTER SHOTS FROM 10 YEARS AGO
The end result will be a big change for the busy intersection - plans shared by RRV show dual right-hand turn lanes from Albert Street into Hertford Street and Glenelg Highway, as well as bike lanes in all directions.
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Early work will also begin at the Delacombe Town Centre roundabout on the Glenelg Highway at the Wiltshire Lane intersection in late February or early March, which will soon become a set of traffic lights.
Major construction there, and at the Latrobe Street and Wiltshire Lane intersection, will begin in 2021.
The Gregory Street intersection on Gillies Street in Wendouree will also have service relocation works begin in late February or early March before traffic lights are installed.
Plans for the Dyson Drive roundabout on the Ballarat-Carngham Road have not yet been finalised, but are expected to be available this year.
The Southern Gateway project, which will include additional lanes on the Midland Highway in Sebastopol and a roundabout at Docwra Street, is expected to get under way in mid to late 2020.
Full details are available on Regional Roads Victoria's Keeping Ballarat Moving page.
The upgrades are part of a $60.8 million election commitment from the state government.
Minister for Roads Jaala Pulford said in a statement the upgrades would benefit thousands of drivers.
"These projects will ensure that Ballarat's road network continues to work for our growing population with better connections to keep traffic moving," she said.
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