RESURFACING work will take place on the A303 between Bullington Cross (exit for A34) and the A3093 Picket Twenty Junction, near Andover, until October.
Work on the A303 westbound will be carried out 10pm to 6am on weekdays from August 20 to 29, September 3 and September 12 to 23.
Similar overnight work will occur on the eastbound carriageway from September 4 to 11 and September 24 to October 3.
Selected slip roads at Barton Stacey and Longparish will also be affected in both directions.
Diversion routes will be in place via the A3093, A343 and A34 during the closures. Motorists should add 30 to 40 minutes to their journey.