Motorists are urged to plan ahead as a major road is set to be closed over the weekend so resurfacing work can continue.
The A12 will be shut between junction 12 at Brentwood and junction 15 at the Webb's Farm interchange in Essex.
National Highways told the BBC that works will take place between 9pm on Friday (April 5) and 5am on Monday.
Project manager Anto Babu apologised for the "inconvenience" and said the closure was needed to enable workers to divert water safely.
"It is expected that the weekend closure will cause disruption along the A12 and on some local roads around Margaretting, so we encourage drivers to plan ahead and allow extra time when travelling," he added.
The work comes as part of a wider project to reconstruct the A12 Margaretting bypass.
Work to replace its concrete road surface started on February 23 this year and is projected to finish in summer 2024.
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