From Friday 9th August, 9pm to 5am, junctions 29, the Ardleigh interchange, and junction 30, at Stratford St Mary, on the A12 will be closed due to resurfacing, road marking and stud renewal.
Drivers will experience a 20-mile diversion route, resulting in an added 30 minutes to journey times, as announced by Highways England.
Drivers will be taken via Brantham and up the A14 at junction 55 at the Copdock interchange in Suffolk.
During the 4 week closures, all eastbound traffic will be diverted at junction 29 A12, onto the A120 and via the A1232, St Andrew’s Avenue, A137, A14 and arrive at the A12/A14 junction 56, before heading west to junction 55 at Copdock interchange.
The diversion route for westbound traffic will be the same, but in reverse.