Work to resurface the carriageway between Polegate and Pevensey will start this week.
A full closure in both directions will be in place on the A27 between Stone Cross Roundabout and Pevensey Roundabout overnight, between 8pm and 6am from tonight (Monday August 3) for five nights.
A clearly signed diversion will be in place via the A22, A259 and Wallsend Road.
Highways England is carrying out the work which it says will improve journeys.
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