Copper Coast Mayor Roslyn Talbot says the overpass at Port Wakefield will cost the Yorke Peninsula another three years of bad tourist experiences.
The State Government announced works on the overpass at the intersection of the Augusta and Copper Coast highways would begin in late 2020.
The $90 million upgrade is projected to be completed by 2022.
Mayor Talbot says the intersection is a big problem busy times during holiday periods, when visitor numbers triple.
She says if people have a bad experience, they won’t come back and 2022 is another three years of bad experiences for people.
The intersection of the two highways often causes holiday chaos with long queues of motorists returning to the city.
The Yorke Peninsula is a popular destination, with more than one million people visiting each year for an average of three nights, generating $211 million a year.
Known as “crash corner”, it’s also been the site of two fatal crashes and four serious injury accidents since 2016.
Port Wakefield Rd carries around 8,500 vehicles a day, jumping to 14,500 in peak Christmas and Easter holidays.