The Scottish government is seeking bids for the construction of the £30M Maybole bypass.
The work involves constructing 5.2km of bypass and associated junctions. Bidders who meet the selection criteria will be invited to tender, with work starting next year.
Soctland’s minister for transport and islands, Humza Yousaf, said: “The Scottish Government remains committed to delivering this strategic link, which serves the Ayrshire and Northern Ireland ferry ports, at the earliest possible opportunity.
“Completion will reduce the congestion within the town, bringing much needed relief for the local Maybole community whilst improving journey times for long distance road users.
“I welcome today’s announcement, which along with a contract notice issued for improvement work to the A9 at Berriedale Braes in the far north of Scotland, provides the construction industry with significant contract opportunities.”
It follows the call for bids to build the £9M Berriedale Braes road coming out earlier this week.