More than 2500 workers will be out on the state’s roads, including a four-kilometre eastbound stretch of the Princes Highway leading into Warrnambool. 

Other sites around the south-west include:

- Work on eastbound lanes between Horne Road and Allansford;

- A 1.5-kilometre section of the highway near Mackinnons Bridge between Terang and Camperdown; and 

- A one-kilometre section of the Henty Highway ring road at Portland. 

Roads Minister Terry Mulder warned drivers to obey speed restrictions coming into areas near roadworks. 

“When you work in a construction zone, you are placed in an extremely hazardous environment and many of our road workers have told us about near misses and abuse from passing drivers,” Mr Mulder said.

“This is the best time of the year to resurface and reseal our roads because asphalting requires good weather.”

Meanwhile, work on the West Gate Bridge is expected to be completed by this morning after resurfacing works. The Domain Tunnel is expected to be reopened at 5am tomorrow.