Highways bosses said roadworks which have caused nightmare traffic jams at a notorious pinch point will continue until the end of March.
Workers are making changes to the A585 near Windy Harbour in a £3m scheme to cut jams and ease traffic flow.
But on Monday a four-way traffic signal system was put in place with single file traffic through the junction, causing huge tailbacks all the way to the M55 at peak times.
Angry motorists have criticised the long delays and look set for more frustration after the Highways Agency confirmed traffic problems will continue for several weeks.
A spokesman said: “The £3m scheme currently taking place at Windy Harbour will significantly increase the capacity of the crossroads by adding an extra lane in each direction on the A585.
“A four-way temporary traffic light system is currently in place while we carry out the widening work, allowing single file traffic through the junction.
“Wherever possible, the traffic lights are being overridden to try and keep delays to a minimum but we are advising drivers to allow extra time for their journeys. The project is due to be completed by the end of the month.”
The work began on November 14 and is expected to continue until Easter.
The work involves the realignment and widening of the existing crossroads to create extra lanes through the junction.
Singleton Coun Maxine Chew said the road layout was an “absolutely huge problem” and called the scheme “ dreadful” for motorists in the area.
She added: “Living with it is unbearable. I have to set off an hour early on journeys.”
Drivers reveal their anger at works on The Gazette Twitter feed:
Drivers told of their anger about the ongoing works at Windy Harbour in a series of tweets on The Gazette’s Twitter feed.
Michael Mallon said: “(I) use this road a lot and you can spend an hour in a queue if unlucky.”
Steve Simpson added: “Mid-afternoon today it was queuing all the way back to the M55 junction near Ashiana restaurant..crazy!”
Matt Jackson said: “It’s a nightmare any time of the day. Question is when is it going to be finished?”
Holly Wadeson added: “Avoiding it like the plague!”
But Joanne Bargelli said: “I can skirt around the back lanes, been caught a few times, it’s going to be great when it’s done. It wasn’t getting any better.”