Highways chiefs are warning drivers in St Helens to expect delays around junction 23 of the M6 next week while work takes place to reduce traffic congestion.
The £4.3m project will see changes to traffic management around the Haydock turn-off and the roundabout with the A580 East Lancs roundabout.
Drivers are being warned there will be overnight closures between 10am and 5am each night next week of the entry to the roundabout from the northbound A49 from Newton.
The following week there will be overnight closure to the roundabout entry from the southbound A49 from Haydock and Ashton-in-Makerfield.
There will also be a closure of both the eastbound and westbound A580 through the roundabout between 10pm on Friday, March 20 and 5am on Monday 23 March but with alternative access provided around the roundabout instead.
The Highways Agency scheme started in December and is expected to be completed by Easter. It involves adding four extra lanes to the section of the A580 that takes traffic through the centre of the roundabout at junction 23.
Engineers hope the improvements will mean vehicles will be able to turn right onto the M6 and the A49 Lodge Lane without having to travel around the roundabout.
A dedicated left-turn lane will also be created for the A49 from the roundabout, the exit slip road from the northbound M6 will be extended, and the entire junction with be resurfaced with an antiskid coating. A new traffic light system will also be installed, using sensors to monitor traffic levels and adjust the lights accordingly.
The £4.3m project is part of the Government’s £317m pinch point programme to help stimulate new development and local economic growth by improving road safety and tackling congestion bottlenecks.